[{"abstract":[{"lang":"eng","text":"Form versus function is a long-standing debate in various design-related fields, such as architecture as well as graphic and industrial design. A good design that balances form and function often requires considerable human effort and collaboration among experts from different professional fields. Computational design tools provide a new paradigm for designing functional objects. In computational design, form and function are represented as mathematical\r\nquantities, with the help of numerical and combinatorial algorithms, they can assist even novice users in designing versatile models that exhibit their desired functionality. This thesis presents three disparate research studies on the computational design of functional objects: The appearance of 3d print—we optimize the volumetric material distribution for faithfully replicating colored surface texture in 3d printing; the dynamic motion of mechanical structures—\r\nour design system helps the novice user to retarget various mechanical templates with different functionality to complex 3d shapes; and a more abstract functionality, multistability—our algorithm automatically generates models that exhibit multiple stable target poses. For each of these cases, our computational design tools not only ensure the functionality of the results but also permit the user aesthetic freedom over the form. Moreover, fabrication constraints\r\nwere taken into account, which allow for the immediate creation of physical realization via 3D printing or laser cutting."}],"day":"14","date_published":"2020-09-14T00:00:00Z","oa":1,"author":[{"full_name":"Zhang, Ran","first_name":"Ran","orcid":"0000-0002-3808-281X","id":"4DDBCEB0-F248-11E8-B48F-1D18A9856A87","last_name":"Zhang"}],"acknowledgement":"The research in this thesis has received funding from the European Union’s Horizon 2020 research and innovation programme, under the Marie Skłodowska-Curie grant agreement No 642841 (DISTRO) and the European Research Council grant agreement No 715767 (MATERIALIZABLE). All the research projects in this thesis were also supported by Scientific Service Units (SSUs) at IST Austria.","doi":"10.15479/AT:ISTA:8386","title":"Structure-aware computational design and its application to 3D printable volume scattering, mechanism, and multistability","has_accepted_license":"1","date_created":"2020-09-14T01:04:53Z","year":"2020","publication_identifier":{"issn":["2663-337X"]},"file_date_updated":"2020-09-15T12:51:53Z","ddc":["003"],"citation":{"chicago":"Zhang, Ran. “Structure-Aware Computational Design and Its Application to 3D Printable Volume Scattering, Mechanism, and Multistability.” Institute of Science and Technology Austria, 2020. <a href=\"https://doi.org/10.15479/AT:ISTA:8386\">https://doi.org/10.15479/AT:ISTA:8386</a>.","apa":"Zhang, R. (2020). <i>Structure-aware computational design and its application to 3D printable volume scattering, mechanism, and multistability</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:8386\">https://doi.org/10.15479/AT:ISTA:8386</a>","ieee":"R. Zhang, “Structure-aware computational design and its application to 3D printable volume scattering, mechanism, and multistability,” Institute of Science and Technology Austria, 2020.","ista":"Zhang R. 2020. Structure-aware computational design and its application to 3D printable volume scattering, mechanism, and multistability. Institute of Science and Technology Austria.","mla":"Zhang, Ran. <i>Structure-Aware Computational Design and Its Application to 3D Printable Volume Scattering, Mechanism, and Multistability</i>. Institute of Science and Technology Austria, 2020, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8386\">10.15479/AT:ISTA:8386</a>.","ama":"Zhang R. Structure-aware computational design and its application to 3D printable volume scattering, mechanism, and multistability. 2020. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8386\">10.15479/AT:ISTA:8386</a>","short":"R. Zhang, Structure-Aware Computational Design and Its Application to 3D Printable Volume Scattering, Mechanism, and Multistability, Institute of Science and Technology Austria, 2020."},"publisher":"Institute of Science and Technology Austria","article_processing_charge":"No","file":[{"file_id":"8388","checksum":"edcf578b6e1c9b0dd81ff72d319b66ba","access_level":"closed","relation":"source_file","file_size":1245800191,"date_updated":"2020-09-14T12:18:43Z","content_type":"application/x-zip-compressed","file_name":"Thesis_Ran.zip","creator":"rzhang","date_created":"2020-09-14T01:02:59Z"},{"content_type":"application/pdf","file_name":"PhD_thesis_Ran Zhang_20200915.pdf","success":1,"creator":"rzhang","file_size":161385316,"date_updated":"2020-09-15T12:51:53Z","date_created":"2020-09-15T12:51:53Z","file_id":"8396","access_level":"open_access","checksum":"817e20c33be9247f906925517c56a40d","relation":"main_file"}],"project":[{"name":"Distributed 3D Object Design","_id":"2508E324-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"642841"},{"_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","grant_number":"715767","call_identifier":"H2020"}],"language":[{"iso":"eng"}],"OA_place":"publisher","type":"dissertation","department":[{"_id":"BeBi"}],"alternative_title":["ISTA Thesis"],"ec_funded":1,"supervisor":[{"id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel","first_name":"Bernd","full_name":"Bickel, Bernd","orcid":"0000-0001-6511-9385"}],"corr_author":"1","status":"public","date_updated":"2026-04-16T10:06:31Z","degree_awarded":"PhD","publication_status":"published","month":"09","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","_id":"8386","page":"148","oa_version":"Published Version","acknowledged_ssus":[{"_id":"SSU"}],"related_material":{"record":[{"status":"public","id":"486","relation":"part_of_dissertation"},{"status":"public","id":"1002","relation":"part_of_dissertation"}]}},{"language":[{"iso":"eng"}],"project":[{"grant_number":"715767","call_identifier":"H2020","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425"}],"publication":"ACM Transactions on Graphics","scopus_import":"1","corr_author":"1","ec_funded":1,"department":[{"_id":"BeBi"}],"type":"journal_article","publication_status":"published","volume":39,"month":"11","isi":1,"date_updated":"2026-04-08T07:25:22Z","status":"public","related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/bend-dont-break/"}],"record":[{"relation":"research_data","status":"public","id":"8761"},{"relation":"dissertation_contains","id":"8366","status":"public"}]},"quality_controlled":"1","article_number":"208","acknowledged_ssus":[{"_id":"ScienComp"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8562","oa_version":"Submitted Version","oa":1,"author":[{"first_name":"Konstantinos","full_name":"Gavriil, Konstantinos","last_name":"Gavriil"},{"orcid":"0000-0001-9819-5077","full_name":"Guseinov, Ruslan","first_name":"Ruslan","last_name":"Guseinov","id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87"},{"id":"2DC83906-F248-11E8-B48F-1D18A9856A87","last_name":"Perez Rodriguez","first_name":"Jesus","full_name":"Perez Rodriguez, Jesus"},{"full_name":"Pellis, Davide","first_name":"Davide","last_name":"Pellis"},{"orcid":"0000-0002-5198-7445","full_name":"Henderson, Paul M","first_name":"Paul M","last_name":"Henderson","id":"13C09E74-18D9-11E9-8878-32CFE5697425"},{"last_name":"Rist","first_name":"Florian","full_name":"Rist, Florian"},{"full_name":"Pottmann, Helmut","first_name":"Helmut","last_name":"Pottmann"},{"full_name":"Bickel, Bernd","first_name":"Bernd","orcid":"0000-0001-6511-9385","id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel"}],"arxiv":1,"date_published":"2020-11-26T00:00:00Z","day":"26","abstract":[{"lang":"eng","text":"Cold bent glass is a promising and cost-efficient method for realizing doubly curved glass facades. They are produced by attaching planar glass sheets to curved frames and require keeping the occurring stress within safe limits.\r\nHowever, it is very challenging to navigate the design space of cold bent glass panels due to the fragility of the material, which impedes the form-finding for practically feasible and aesthetically pleasing cold bent glass facades. We propose an interactive, data-driven approach for designing cold bent glass facades that can be seamlessly integrated into a typical architectural design pipeline. Our method allows non-expert users to interactively edit a parametric surface while providing real-time feedback on the deformed shape and maximum stress of cold bent glass panels. Designs are automatically refined to minimize several fairness criteria while maximal stresses are kept within glass limits. We achieve interactive frame rates by using a differentiable Mixture Density Network trained from more than a million simulations. Given a curved boundary, our regression model is capable of handling multistable\r\nconfigurations and accurately predicting the equilibrium shape of the panel and its corresponding maximal stress. We show predictions are highly accurate and validate our results with a physical realization of a cold bent glass surface."}],"doi":"10.1145/3414685.3417843","issue":"6","acknowledgement":"We thank IST Austria’s Scientific Computing team for their support, Corinna Datsiou and Sophie Pennetier for their expert input on the practical applications of cold bent glass, and Zaha Hadid Architects and Waagner Biro for providing the architectural datasets. Photo of Fondation Louis Vuitton by Francisco Anzola / CC BY 2.0 / cropped.\r\nPhoto of Opus by Danica O. Kus. This project has received funding from the European Union’s\r\nHorizon 2020 research and innovation program under grant agreement No 675789 - Algebraic Representations in Computer-Aided Design for complEx Shapes (ARCADES), from the European Research Council (ERC) under grant agreement No 715767 - MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling, and SFB-Transregio “Discretization in Geometry and Dynamics” through grant I 2978 of the Austrian Science Fund (FWF). F. Rist and K. Gavriil have been partially supported by KAUST baseline funding.","article_type":"original","publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"external_id":{"isi":["000595589100048"],"arxiv":["2009.03667"]},"intvolume":"        39","year":"2020","date_created":"2020-09-23T11:30:02Z","has_accepted_license":"1","title":"Computational design of cold bent glass façades","publisher":"Association for Computing Machinery","file":[{"relation":"main_file","checksum":"c7f67717ad74e670b7daeae732abe151","access_level":"open_access","file_id":"13084","date_created":"2023-05-23T20:54:43Z","file_size":28964641,"date_updated":"2023-05-23T20:54:43Z","file_name":"coldglass.pdf","creator":"bbickel","success":1,"content_type":"application/pdf"}],"article_processing_charge":"No","citation":{"short":"K. Gavriil, R. Guseinov, J. Perez Rodriguez, D. Pellis, P.M. Henderson, F. Rist, H. Pottmann, B. Bickel, ACM Transactions on Graphics 39 (2020).","mla":"Gavriil, Konstantinos, et al. “Computational Design of Cold Bent Glass Façades.” <i>ACM Transactions on Graphics</i>, vol. 39, no. 6, 208, Association for Computing Machinery, 2020, doi:<a href=\"https://doi.org/10.1145/3414685.3417843\">10.1145/3414685.3417843</a>.","ama":"Gavriil K, Guseinov R, Perez Rodriguez J, et al. Computational design of cold bent glass façades. <i>ACM Transactions on Graphics</i>. 2020;39(6). doi:<a href=\"https://doi.org/10.1145/3414685.3417843\">10.1145/3414685.3417843</a>","ieee":"K. Gavriil <i>et al.</i>, “Computational design of cold bent glass façades,” <i>ACM Transactions on Graphics</i>, vol. 39, no. 6. Association for Computing Machinery, 2020.","ista":"Gavriil K, Guseinov R, Perez Rodriguez J, Pellis D, Henderson PM, Rist F, Pottmann H, Bickel B. 2020. Computational design of cold bent glass façades. ACM Transactions on Graphics. 39(6), 208.","apa":"Gavriil, K., Guseinov, R., Perez Rodriguez, J., Pellis, D., Henderson, P. M., Rist, F., … Bickel, B. (2020). Computational design of cold bent glass façades. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3414685.3417843\">https://doi.org/10.1145/3414685.3417843</a>","chicago":"Gavriil, Konstantinos, Ruslan Guseinov, Jesus Perez Rodriguez, Davide Pellis, Paul M Henderson, Florian Rist, Helmut Pottmann, and Bernd Bickel. “Computational Design of Cold Bent Glass Façades.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020. <a href=\"https://doi.org/10.1145/3414685.3417843\">https://doi.org/10.1145/3414685.3417843</a>."},"file_date_updated":"2023-05-23T20:54:43Z","ddc":["000"]},{"month":"11","year":"2020","date_created":"2020-11-16T10:47:18Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"has_accepted_license":"1","status":"public","date_updated":"2025-04-15T07:16:12Z","title":"Supplementary data for \"Computational design of cold bent glass façades\"","related_material":{"link":[{"relation":"software","url":"https://github.com/russelmann/cold-glass-acm"}],"record":[{"status":"public","id":"8562","relation":"used_in_publication"}]},"article_processing_charge":"No","file":[{"checksum":"f5ae57b97017b9f61081032703361233","access_level":"open_access","relation":"main_file","file_id":"8762","date_created":"2020-11-16T10:31:29Z","date_updated":"2020-11-16T10:31:29Z","file_size":15378270,"content_type":"application/x-gzip","file_name":"mdn_model.tar.gz","creator":"rguseino","success":1},{"file_id":"8763","checksum":"b0d25e04060ee78c585ee2f23542c744","access_level":"open_access","relation":"main_file","date_updated":"2020-11-16T10:43:23Z","file_size":615387734,"content_type":"application/x-gzip","success":1,"creator":"rguseino","file_name":"optimal_panels_data.tar.gz","date_created":"2020-11-16T10:43:23Z"},{"date_created":"2020-11-18T10:04:59Z","date_updated":"2020-11-18T10:04:59Z","file_size":1228,"creator":"rguseino","success":1,"file_name":"readme.txt","content_type":"text/plain","relation":"main_file","access_level":"open_access","checksum":"69c1dde3434ada86d125e0c2588caf1e","file_id":"8770"}],"publisher":"Institute of Science and Technology Austria","citation":{"chicago":"Guseinov, Ruslan. “Supplementary Data for ‘Computational Design of Cold Bent Glass Façades.’” Institute of Science and Technology Austria, 2020. <a href=\"https://doi.org/10.15479/AT:ISTA:8761\">https://doi.org/10.15479/AT:ISTA:8761</a>.","apa":"Guseinov, R. (2020). Supplementary data for “Computational design of cold bent glass façades.” Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:8761\">https://doi.org/10.15479/AT:ISTA:8761</a>","ista":"Guseinov R. 2020. Supplementary data for ‘Computational design of cold bent glass façades’, Institute of Science and Technology Austria, <a href=\"https://doi.org/10.15479/AT:ISTA:8761\">10.15479/AT:ISTA:8761</a>.","ieee":"R. Guseinov, “Supplementary data for ‘Computational design of cold bent glass façades.’” Institute of Science and Technology Austria, 2020.","ama":"Guseinov R. Supplementary data for “Computational design of cold bent glass façades.” 2020. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8761\">10.15479/AT:ISTA:8761</a>","mla":"Guseinov, Ruslan. <i>Supplementary Data for “Computational Design of Cold Bent Glass Façades.”</i> Institute of Science and Technology Austria, 2020, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:8761\">10.15479/AT:ISTA:8761</a>.","short":"R. Guseinov, (2020)."},"file_date_updated":"2020-11-18T10:04:59Z","ddc":["000"],"acknowledged_ssus":[{"_id":"ScienComp"}],"_id":"8761","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","author":[{"last_name":"Guseinov","id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9819-5077","full_name":"Guseinov, Ruslan","first_name":"Ruslan"}],"oa":1,"date_published":"2020-11-23T00:00:00Z","project":[{"_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","grant_number":"715767","call_identifier":"H2020"}],"day":"23","corr_author":"1","doi":"10.15479/AT:ISTA:8761","ec_funded":1,"contributor":[{"first_name":"Konstantinos","contributor_type":"researcher","last_name":"Gavriil"},{"id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","last_name":"Guseinov","first_name":"Ruslan","contributor_type":"researcher","orcid":"0000-0001-9819-5077"},{"contributor_type":"researcher","first_name":"Jesus","id":"2DC83906-F248-11E8-B48F-1D18A9856A87","last_name":"Perez Rodriguez"},{"contributor_type":"researcher","first_name":"Davide","last_name":"Pellis"},{"id":"13C09E74-18D9-11E9-8878-32CFE5697425","last_name":"Henderson","first_name":"Paul M","contributor_type":"researcher","orcid":"0000-0002-5198-7445"},{"last_name":"Rist","contributor_type":"researcher","first_name":"Florian"},{"first_name":"Helmut","contributor_type":"researcher","last_name":"Pottmann"},{"orcid":"0000-0001-6511-9385","contributor_type":"researcher","first_name":"Bernd","last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87"}],"department":[{"_id":"BeBi"}],"type":"research_data"},{"month":"12","publication_status":"published","volume":39,"isi":1,"status":"public","date_updated":"2024-10-22T09:58:15Z","quality_controlled":"1","oa_version":"None","_id":"8766","user_id":"2EBD1598-F248-11E8-B48F-1D18A9856A87","page":"47-54","language":[{"iso":"eng"}],"project":[{"grant_number":"638176","call_identifier":"H2020","_id":"2533E772-B435-11E9-9278-68D0E5697425","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales"},{"call_identifier":"H2020","grant_number":"715767","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling"}],"publication":"Computer Graphics forum","scopus_import":"1","ec_funded":1,"department":[{"_id":"ChWo"},{"_id":"BeBi"}],"type":"journal_article","external_id":{"isi":["000591780400005"]},"intvolume":"        39","year":"2020","date_created":"2020-11-17T10:47:48Z","title":"Making procedural water waves boundary-aware","publisher":"Wiley","article_processing_charge":"No","citation":{"short":"S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, C. Wojtan, Computer Graphics Forum 39 (2020) 47–54.","mla":"Jeschke, Stefan, et al. “Making Procedural Water Waves Boundary-Aware.” <i>Computer Graphics Forum</i>, vol. 39, no. 8, Wiley, 2020, pp. 47–54, doi:<a href=\"https://doi.org/10.1111/cgf.14100\">10.1111/cgf.14100</a>.","ama":"Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. Making procedural water waves boundary-aware. <i>Computer Graphics forum</i>. 2020;39(8):47-54. doi:<a href=\"https://doi.org/10.1111/cgf.14100\">10.1111/cgf.14100</a>","ieee":"S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, and C. Wojtan, “Making procedural water waves boundary-aware,” <i>Computer Graphics forum</i>, vol. 39, no. 8. Wiley, pp. 47–54, 2020.","ista":"Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. 2020. Making procedural water waves boundary-aware. Computer Graphics forum. 39(8), 47–54.","apa":"Jeschke, S., Hafner, C., Chentanez, N., Macklin, M., Müller-Fischer, M., &#38; Wojtan, C. (2020). Making procedural water waves boundary-aware. <i>Computer Graphics Forum</i>. Online Symposium: Wiley. <a href=\"https://doi.org/10.1111/cgf.14100\">https://doi.org/10.1111/cgf.14100</a>","chicago":"Jeschke, Stefan, Christian Hafner, Nuttapong Chentanez, Miles Macklin, Matthias Müller-Fischer, and Chris Wojtan. “Making Procedural Water Waves Boundary-Aware.” <i>Computer Graphics Forum</i>. Wiley, 2020. <a href=\"https://doi.org/10.1111/cgf.14100\">https://doi.org/10.1111/cgf.14100</a>."},"author":[{"last_name":"Jeschke","id":"44D6411A-F248-11E8-B48F-1D18A9856A87","first_name":"Stefan","full_name":"Jeschke, Stefan"},{"full_name":"Hafner, Christian","first_name":"Christian","id":"400429CC-F248-11E8-B48F-1D18A9856A87","last_name":"Hafner"},{"first_name":"Nuttapong","full_name":"Chentanez, Nuttapong","last_name":"Chentanez"},{"first_name":"Miles","full_name":"Macklin, Miles","last_name":"Macklin"},{"first_name":"Matthias","full_name":"Müller-Fischer, Matthias","last_name":"Müller-Fischer"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","last_name":"Wojtan","full_name":"Wojtan, Christopher J","first_name":"Christopher J","orcid":"0000-0001-6646-5546"}],"date_published":"2020-12-01T00:00:00Z","day":"01","abstract":[{"lang":"eng","text":"The “procedural” approach to animating ocean waves is the dominant algorithm for animating larger bodies of water in\r\ninteractive applications as well as in off-line productions — it provides high visual quality with a low computational demand. In this paper, we widen the applicability of procedural water wave animation with an extension that guarantees the satisfaction of boundary conditions imposed by terrain while still approximating physical wave behavior. In combination with a particle system that models wave breaking, foam, and spray, this allows us to naturally model waves interacting with beaches and rocks. Our system is able to animate waves at large scales at interactive frame rates on a commodity PC."}],"conference":{"location":"Online Symposium","start_date":"2020-10-06","name":"SCA: Symposium on Computer Animation","end_date":"2020-10-09"},"doi":"10.1111/cgf.14100","issue":"8","article_type":"original"},{"publication":"SN Applied Sciences","language":[{"iso":"eng"}],"type":"journal_article","department":[{"_id":"BeBi"}],"scopus_import":"1","status":"public","date_updated":"2026-04-02T14:31:49Z","month":"09","volume":2,"publication_status":"published","_id":"9208","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","oa_version":"None","quality_controlled":"1","article_number":"1505","abstract":[{"lang":"eng","text":"Bending-active structures are able to efficiently produce complex curved shapes from flat panels. The desired deformation of the panels derives from the proper selection of their elastic properties. Optimized panels, called FlexMaps, are designed such that, once they are bent and assembled, the resulting static equilibrium configuration matches a desired input 3D shape. The FlexMaps elastic properties are controlled by locally varying spiraling geometric mesostructures, which are optimized in size and shape to match specific bending requests, namely the global curvature of the target shape. The design pipeline starts from a quad mesh representing the input 3D shape, which defines the edge size and the total amount of spirals: every quad will embed one spiral. Then, an optimization algorithm tunes the geometry of the spirals by using a simplified pre-computed rod model. This rod model is derived from a non-linear regression algorithm which approximates the non-linear behavior of solid FEM spiral models subject to hundreds of load combinations. This innovative pipeline has been applied to the project of a lightweight plywood pavilion named FlexMaps Pavilion, which is a single-layer piecewise twisted arch that fits a bounding box of 3.90x3.96x3.25 meters. This case study serves to test the applicability of this methodology at the architectural scale. The structure is validated via FE analyses and the fabrication of the full scale prototype."}],"day":"01","date_published":"2020-09-01T00:00:00Z","author":[{"first_name":"Francesco","full_name":"Laccone, Francesco","last_name":"Laccone"},{"last_name":"Malomo","first_name":"Luigi","full_name":"Malomo, Luigi"},{"first_name":"Jesus","full_name":"Perez Rodriguez, Jesus","last_name":"Perez Rodriguez","id":"2DC83906-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Pietroni","full_name":"Pietroni, Nico","first_name":"Nico"},{"first_name":"Federico","full_name":"Ponchio, Federico","last_name":"Ponchio"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","first_name":"Bernd","full_name":"Bickel, Bernd"},{"last_name":"Cignoni","full_name":"Cignoni, Paolo","first_name":"Paolo"}],"article_type":"original","issue":"9","acknowledgement":"The FlexMaps Pavilion has been awarded First Prize at the “Competition and Exhibition of innovative lightweight structures” organized by the IASS Working Group 21 within the FORM and FORCE, joint international conference of IASS Symposium 2019 and Structural Membranes 2019 (Barcelona, 7-11 October 2019) with the following motivation: “for its structural innovation of bending-twisting system, connection constructability and exquisite craftmanship”[20]. The authors would like to acknowledge the Visual Computing Lab Staff of ISTI - CNR, in particular Thomas Alderighi, Marco Callieri, Paolo Pingi; Antonio Rizzo of IPCF - CNR; and the Administrative Staff of ISTI - CNR. This research was partially funded by the EU H2020 Programme EVOCATION: Advanced Visual and Geometric Computing for 3D Capture, Display, and Fabrication (grant no. 813170).","doi":"10.1007/s42452-020-03305-w","title":"A bending-active twisted-arch plywood structure: Computational design and fabrication of the FlexMaps Pavilion","intvolume":"         2","date_created":"2021-02-28T23:01:25Z","year":"2020","publication_identifier":{"eissn":["2523-3971"]},"citation":{"apa":"Laccone, F., Malomo, L., Perez Rodriguez, J., Pietroni, N., Ponchio, F., Bickel, B., &#38; Cignoni, P. (2020). A bending-active twisted-arch plywood structure: Computational design and fabrication of the FlexMaps Pavilion. <i>SN Applied Sciences</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s42452-020-03305-w\">https://doi.org/10.1007/s42452-020-03305-w</a>","chicago":"Laccone, Francesco, Luigi Malomo, Jesus Perez Rodriguez, Nico Pietroni, Federico Ponchio, Bernd Bickel, and Paolo Cignoni. “A Bending-Active Twisted-Arch Plywood Structure: Computational Design and Fabrication of the FlexMaps Pavilion.” <i>SN Applied Sciences</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1007/s42452-020-03305-w\">https://doi.org/10.1007/s42452-020-03305-w</a>.","ista":"Laccone F, Malomo L, Perez Rodriguez J, Pietroni N, Ponchio F, Bickel B, Cignoni P. 2020. A bending-active twisted-arch plywood structure: Computational design and fabrication of the FlexMaps Pavilion. SN Applied Sciences. 2(9), 1505.","ieee":"F. Laccone <i>et al.</i>, “A bending-active twisted-arch plywood structure: Computational design and fabrication of the FlexMaps Pavilion,” <i>SN Applied Sciences</i>, vol. 2, no. 9. Springer Nature, 2020.","mla":"Laccone, Francesco, et al. “A Bending-Active Twisted-Arch Plywood Structure: Computational Design and Fabrication of the FlexMaps Pavilion.” <i>SN Applied Sciences</i>, vol. 2, no. 9, 1505, Springer Nature, 2020, doi:<a href=\"https://doi.org/10.1007/s42452-020-03305-w\">10.1007/s42452-020-03305-w</a>.","ama":"Laccone F, Malomo L, Perez Rodriguez J, et al. A bending-active twisted-arch plywood structure: Computational design and fabrication of the FlexMaps Pavilion. <i>SN Applied Sciences</i>. 2020;2(9). doi:<a href=\"https://doi.org/10.1007/s42452-020-03305-w\">10.1007/s42452-020-03305-w</a>","short":"F. Laccone, L. Malomo, J. Perez Rodriguez, N. Pietroni, F. Ponchio, B. Bickel, P. Cignoni, SN Applied Sciences 2 (2020)."},"publisher":"Springer Nature","article_processing_charge":"No"},{"language":[{"iso":"eng"}],"publication":"International Journal of Oral and Maxillofacial Surgery","scopus_import":"1","type":"journal_article","department":[{"_id":"BeBi"}],"isi":1,"publication_status":"published","volume":49,"month":"08","date_updated":"2023-08-17T14:15:22Z","status":"public","quality_controlled":"1","_id":"7218","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","page":"P1007-1015","oa_version":"None","date_published":"2020-08-01T00:00:00Z","author":[{"first_name":"Philippe","full_name":"Dodier, Philippe","last_name":"Dodier"},{"full_name":"Winter, Fabian","first_name":"Fabian","last_name":"Winter"},{"full_name":"Auzinger, Thomas","first_name":"Thomas","orcid":"0000-0002-1546-3265","id":"4718F954-F248-11E8-B48F-1D18A9856A87","last_name":"Auzinger"},{"first_name":"Gabriel","full_name":"Mistelbauer, Gabriel","last_name":"Mistelbauer"},{"last_name":"Frischer","full_name":"Frischer, Josa M.","first_name":"Josa M."},{"last_name":"Wang","full_name":"Wang, Wei Te","first_name":"Wei Te"},{"last_name":"Mallouhi","full_name":"Mallouhi, Ammar","first_name":"Ammar"},{"first_name":"Wolfgang","full_name":"Marik, Wolfgang","last_name":"Marik"},{"full_name":"Wolfsberger, Stefan","first_name":"Stefan","last_name":"Wolfsberger"},{"last_name":"Reissig","full_name":"Reissig, Lukas","first_name":"Lukas"},{"last_name":"Hammadi","full_name":"Hammadi, Firas","first_name":"Firas"},{"full_name":"Matula, Christian","first_name":"Christian","last_name":"Matula"},{"last_name":"Baumann","full_name":"Baumann, Arnulf","first_name":"Arnulf"},{"last_name":"Bavinzski","first_name":"Gerhard","full_name":"Bavinzski, Gerhard"}],"abstract":[{"text":"The combined resection of skull-infiltrating tumours and immediate cranioplastic reconstruction predominantly relies on freehand-moulded solutions. Techniques that enable this procedure to be performed easily in routine clinical practice would be useful. A cadaveric study was developed in which a new software tool was used to perform single-stage reconstructions with prefabricated implants after the resection of skull-infiltrating pathologies. A novel 3D visualization and interaction framework was developed to create 10 virtual craniotomies in five cadaveric specimens. Polyether ether ketone (PEEK) implants were manufactured according to the bone defects. The image-guided craniotomy was reconstructed with PEEK and compared to polymethyl methacrylate (PMMA). Navigational accuracy and surgical precision were assessed. The PEEK workflow resulted in up to 10-fold shorter reconstruction times than the standard technique. Surgical precision was reflected by the mean 1.1 ± 0.29 mm distance between the virtual and real craniotomy, with submillimetre precision in 50%. Assessment of the global offset between virtual and actual craniotomy revealed an average shift of 4.5 ± 3.6 mm. The results validated the ‘elective single-stage cranioplasty’ technique as a state-of-the-art virtual planning method and surgical workflow. This patient-tailored workflow could significantly reduce surgical times compared to the traditional, intraoperative acrylic moulding method and may be an option for the reconstruction of bone defects in the craniofacial region.","lang":"eng"}],"day":"01","doi":"10.1016/j.ijom.2019.11.011","article_type":"original","issue":"8","date_created":"2019-12-29T23:00:47Z","year":"2020","intvolume":"        49","external_id":{"isi":["000556819800005"],"pmid":["31866145"]},"publication_identifier":{"eissn":["1399-0020"],"issn":["0901-5027"]},"pmid":1,"title":"Single-stage bone resection and cranioplastic reconstruction: Comparison of a novel software-derived PEEK workflow with the standard reconstructive method","citation":{"apa":"Dodier, P., Winter, F., Auzinger, T., Mistelbauer, G., Frischer, J. M., Wang, W. T., … Bavinzski, G. (2020). Single-stage bone resection and cranioplastic reconstruction: Comparison of a novel software-derived PEEK workflow with the standard reconstructive method. <i>International Journal of Oral and Maxillofacial Surgery</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.ijom.2019.11.011\">https://doi.org/10.1016/j.ijom.2019.11.011</a>","chicago":"Dodier, Philippe, Fabian Winter, Thomas Auzinger, Gabriel Mistelbauer, Josa M. Frischer, Wei Te Wang, Ammar Mallouhi, et al. “Single-Stage Bone Resection and Cranioplastic Reconstruction: Comparison of a Novel Software-Derived PEEK Workflow with the Standard Reconstructive Method.” <i>International Journal of Oral and Maxillofacial Surgery</i>. Elsevier, 2020. <a href=\"https://doi.org/10.1016/j.ijom.2019.11.011\">https://doi.org/10.1016/j.ijom.2019.11.011</a>.","ieee":"P. Dodier <i>et al.</i>, “Single-stage bone resection and cranioplastic reconstruction: Comparison of a novel software-derived PEEK workflow with the standard reconstructive method,” <i>International Journal of Oral and Maxillofacial Surgery</i>, vol. 49, no. 8. Elsevier, pp. P1007-1015, 2020.","ista":"Dodier P, Winter F, Auzinger T, Mistelbauer G, Frischer JM, Wang WT, Mallouhi A, Marik W, Wolfsberger S, Reissig L, Hammadi F, Matula C, Baumann A, Bavinzski G. 2020. Single-stage bone resection and cranioplastic reconstruction: Comparison of a novel software-derived PEEK workflow with the standard reconstructive method. International Journal of Oral and Maxillofacial Surgery. 49(8), P1007-1015.","ama":"Dodier P, Winter F, Auzinger T, et al. Single-stage bone resection and cranioplastic reconstruction: Comparison of a novel software-derived PEEK workflow with the standard reconstructive method. <i>International Journal of Oral and Maxillofacial Surgery</i>. 2020;49(8):P1007-1015. doi:<a href=\"https://doi.org/10.1016/j.ijom.2019.11.011\">10.1016/j.ijom.2019.11.011</a>","mla":"Dodier, Philippe, et al. “Single-Stage Bone Resection and Cranioplastic Reconstruction: Comparison of a Novel Software-Derived PEEK Workflow with the Standard Reconstructive Method.” <i>International Journal of Oral and Maxillofacial Surgery</i>, vol. 49, no. 8, Elsevier, 2020, pp. P1007-1015, doi:<a href=\"https://doi.org/10.1016/j.ijom.2019.11.011\">10.1016/j.ijom.2019.11.011</a>.","short":"P. Dodier, F. Winter, T. Auzinger, G. Mistelbauer, J.M. Frischer, W.T. Wang, A. Mallouhi, W. Marik, S. Wolfsberger, L. Reissig, F. Hammadi, C. Matula, A. Baumann, G. Bavinzski, International Journal of Oral and Maxillofacial Surgery 49 (2020) P1007-1015."},"article_processing_charge":"No","publisher":"Elsevier"},{"author":[{"last_name":"Dodier","first_name":"Philippe","full_name":"Dodier, Philippe"},{"id":"4718F954-F248-11E8-B48F-1D18A9856A87","last_name":"Auzinger","first_name":"Thomas","full_name":"Auzinger, Thomas","orcid":"0000-0002-1546-3265"},{"first_name":"Gabriel","full_name":"Mistelbauer, Gabriel","last_name":"Mistelbauer"},{"full_name":"Wang, Wei Te","first_name":"Wei Te","last_name":"Wang"},{"last_name":"Ferraz-Leite","first_name":"Heber","full_name":"Ferraz-Leite, Heber"},{"full_name":"Gruber, Andreas","first_name":"Andreas","last_name":"Gruber"},{"last_name":"Marik","first_name":"Wolfgang","full_name":"Marik, Wolfgang"},{"first_name":"Fabian","full_name":"Winter, Fabian","last_name":"Winter"},{"last_name":"Fischer","full_name":"Fischer, Gerrit","first_name":"Gerrit"},{"first_name":"Josa M.","full_name":"Frischer, Josa M.","last_name":"Frischer"},{"full_name":"Bavinzski, Gerhard","first_name":"Gerhard","last_name":"Bavinzski"}],"date_published":"2020-02-01T00:00:00Z","day":"01","abstract":[{"text":"BACKGROUND:The introduction of image-guided methods to bypass surgery has resulted in optimized preoperative identification of the recipients and excellent patency rates. However, the recently presented methods have also been resource-consuming. In the present study, we have reported a cost-efficient planning workflow for extracranial-intracranial (EC-IC) revascularization combined with transdural indocyanine green videoangiography (tICG-VA). METHODS:We performed a retrospective review at a single tertiary referral center from 2011 to 2018. A novel software-derived workflow was applied for 25 of 92 bypass procedures during the study period. The precision and accuracy were assessed using tICG-VA identification of the cortical recipients and a comparison of the virtual and actual data. The data from a control group of 25 traditionally planned procedures were also matched. RESULTS:The intraoperative transfer time of the calculated coordinates averaged 0.8 minute (range, 0.4-1.9 minutes). The definitive recipients matched the targeted branches in 80%, and a neighboring branch was used in 16%. Our workflow led to a significant craniotomy size reduction in the study group compared with that in the control group (P = 0.005). tICG-VA was successfully applied in 19 cases. An average of 2 potential recipient arteries were identified transdurally, resulting in tailored durotomy and 3 craniotomy adjustments. Follow-up patency results were available for 49 bypass surgeries, comprising 54 grafts. The overall patency rate was 91% at a median follow-up period of 26 months. No significant difference was found in the patency rate between the study and control groups (P = 0.317). CONCLUSIONS:Our clinical results have validated the presented planning and surgical workflow and support the routine implementation of tICG-VA for recipient identification before durotomy.","lang":"eng"}],"doi":"10.1016/j.wneu.2019.11.038","issue":"2","article_type":"original","external_id":{"pmid":["31733380"],"isi":["000512878200104"]},"publication_identifier":{"eissn":["1878-8769"],"issn":["1878-8750"]},"year":"2020","date_created":"2019-12-29T23:00:48Z","intvolume":"       134","title":"Novel software-derived workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine green videoangiography","pmid":1,"publisher":"Elsevier","article_processing_charge":"No","citation":{"ama":"Dodier P, Auzinger T, Mistelbauer G, et al. Novel software-derived workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine green videoangiography. <i>World Neurosurgery</i>. 2020;134(2):e892-e902. doi:<a href=\"https://doi.org/10.1016/j.wneu.2019.11.038\">10.1016/j.wneu.2019.11.038</a>","mla":"Dodier, Philippe, et al. “Novel Software-Derived Workflow in Extracranial–Intracranial Bypass Surgery Validated by Transdural Indocyanine Green Videoangiography.” <i>World Neurosurgery</i>, vol. 134, no. 2, Elsevier, 2020, pp. e892–902, doi:<a href=\"https://doi.org/10.1016/j.wneu.2019.11.038\">10.1016/j.wneu.2019.11.038</a>.","short":"P. Dodier, T. Auzinger, G. Mistelbauer, W.T. Wang, H. Ferraz-Leite, A. Gruber, W. Marik, F. Winter, G. Fischer, J.M. Frischer, G. Bavinzski, World Neurosurgery 134 (2020) e892–e902.","chicago":"Dodier, Philippe, Thomas Auzinger, Gabriel Mistelbauer, Wei Te Wang, Heber Ferraz-Leite, Andreas Gruber, Wolfgang Marik, et al. “Novel Software-Derived Workflow in Extracranial–Intracranial Bypass Surgery Validated by Transdural Indocyanine Green Videoangiography.” <i>World Neurosurgery</i>. Elsevier, 2020. <a href=\"https://doi.org/10.1016/j.wneu.2019.11.038\">https://doi.org/10.1016/j.wneu.2019.11.038</a>.","apa":"Dodier, P., Auzinger, T., Mistelbauer, G., Wang, W. T., Ferraz-Leite, H., Gruber, A., … Bavinzski, G. (2020). Novel software-derived workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine green videoangiography. <i>World Neurosurgery</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.wneu.2019.11.038\">https://doi.org/10.1016/j.wneu.2019.11.038</a>","ieee":"P. Dodier <i>et al.</i>, “Novel software-derived workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine green videoangiography,” <i>World Neurosurgery</i>, vol. 134, no. 2. Elsevier, pp. e892–e902, 2020.","ista":"Dodier P, Auzinger T, Mistelbauer G, Wang WT, Ferraz-Leite H, Gruber A, Marik W, Winter F, Fischer G, Frischer JM, Bavinzski G. 2020. Novel software-derived workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine green videoangiography. World Neurosurgery. 134(2), e892–e902."},"language":[{"iso":"eng"}],"publication":"World Neurosurgery","scopus_import":"1","department":[{"_id":"BeBi"}],"type":"journal_article","isi":1,"volume":134,"publication_status":"published","month":"02","date_updated":"2023-08-17T14:14:23Z","status":"public","quality_controlled":"1","_id":"7220","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","page":"e892-e902","oa_version":"None"},{"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","grant_number":"754411"},{"call_identifier":"H2020","grant_number":"715767","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425"}],"publication":"Nature Communications","keyword":["Design","Synthesis and processing","Mechanical engineering","Polymers"],"language":[{"iso":"eng"}],"department":[{"_id":"BeBi"}],"type":"journal_article","corr_author":"1","scopus_import":"1","ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2026-04-08T07:25:22Z","status":"public","isi":1,"volume":11,"publication_status":"published","month":"01","_id":"7262","oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","related_material":{"record":[{"id":"7154","status":"public","relation":"research_data"},{"relation":"dissertation_contains","status":"public","id":"8366"}],"link":[{"description":"News on IST Homepage","relation":"press_release","url":"https://ist.ac.at/en/news/geometry-meets-time/"}]},"article_number":"237","quality_controlled":"1","day":"13","abstract":[{"text":"Advances in shape-morphing materials, such as hydrogels, shape-memory polymers and light-responsive polymers have enabled prescribing self-directed deformations of initially flat geometries. However, most proposed solutions evolve towards a target geometry without considering time-dependent actuation paths. To achieve more complex geometries and avoid self-collisions, it is critical to encode a spatial and temporal shape evolution within the initially flat shell. Recent realizations of time-dependent morphing are limited to the actuation of few, discrete hinges and cannot form doubly curved surfaces. Here, we demonstrate a method for encoding temporal shape evolution in architected shells that assume complex shapes and doubly curved geometries. The shells are non-periodic tessellations of pre-stressed contractile unit cells that soften in water at rates prescribed locally by mesostructure geometry. The ensuing midplane contraction is coupled to the formation of encoded curvatures. We propose an inverse design tool based on a data-driven model for unit cells’ temporal responses.","lang":"eng"}],"author":[{"id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","last_name":"Guseinov","first_name":"Ruslan","full_name":"Guseinov, Ruslan","orcid":"0000-0001-9819-5077"},{"last_name":"McMahan","first_name":"Connor","full_name":"McMahan, Connor"},{"last_name":"Perez Rodriguez","id":"2DC83906-F248-11E8-B48F-1D18A9856A87","first_name":"Jesus","full_name":"Perez Rodriguez, Jesus"},{"first_name":"Chiara","full_name":"Daraio, Chiara","last_name":"Daraio"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd"}],"oa":1,"date_published":"2020-01-13T00:00:00Z","article_type":"original","doi":"10.1038/s41467-019-14015-2","has_accepted_license":"1","pmid":1,"title":"Programming temporal morphing of self-actuated shells","external_id":{"pmid":["31932589"],"isi":["000511916800015"]},"publication_identifier":{"issn":["2041-1723"]},"date_created":"2020-01-13T16:54:26Z","year":"2020","intvolume":"        11","ddc":["000"],"file_date_updated":"2020-07-14T12:47:55Z","publisher":"Springer Nature","article_processing_charge":"No","file":[{"relation":"main_file","checksum":"7db23fef2f4cda712f17f1004116ddff","access_level":"open_access","file_id":"7336","date_created":"2020-01-15T14:35:34Z","date_updated":"2020-07-14T12:47:55Z","file_size":1315270,"creator":"rguseino","file_name":"2020_NatureComm_Guseinov.pdf","content_type":"application/pdf"}],"citation":{"short":"R. Guseinov, C. McMahan, J. Perez Rodriguez, C. Daraio, B. Bickel, Nature Communications 11 (2020).","mla":"Guseinov, Ruslan, et al. “Programming Temporal Morphing of Self-Actuated Shells.” <i>Nature Communications</i>, vol. 11, 237, Springer Nature, 2020, doi:<a href=\"https://doi.org/10.1038/s41467-019-14015-2\">10.1038/s41467-019-14015-2</a>.","ama":"Guseinov R, McMahan C, Perez Rodriguez J, Daraio C, Bickel B. Programming temporal morphing of self-actuated shells. <i>Nature Communications</i>. 2020;11. doi:<a href=\"https://doi.org/10.1038/s41467-019-14015-2\">10.1038/s41467-019-14015-2</a>","ieee":"R. Guseinov, C. McMahan, J. Perez Rodriguez, C. Daraio, and B. Bickel, “Programming temporal morphing of self-actuated shells,” <i>Nature Communications</i>, vol. 11. Springer Nature, 2020.","ista":"Guseinov R, McMahan C, Perez Rodriguez J, Daraio C, Bickel B. 2020. Programming temporal morphing of self-actuated shells. Nature Communications. 11, 237.","chicago":"Guseinov, Ruslan, Connor McMahan, Jesus Perez Rodriguez, Chiara Daraio, and Bernd Bickel. “Programming Temporal Morphing of Self-Actuated Shells.” <i>Nature Communications</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s41467-019-14015-2\">https://doi.org/10.1038/s41467-019-14015-2</a>.","apa":"Guseinov, R., McMahan, C., Perez Rodriguez, J., Daraio, C., &#38; Bickel, B. (2020). Programming temporal morphing of self-actuated shells. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-019-14015-2\">https://doi.org/10.1038/s41467-019-14015-2</a>"}},{"department":[{"_id":"BeBi"}],"type":"conference","scopus_import":"1","day":"10","abstract":[{"text":"Bending-active structures are able to efficiently produce complex curved shapes starting from flat panels. The desired deformation of the panels derives from the proper selection of their elastic properties. Optimized panels, called FlexMaps, are designed such that, once they are bent and assembled, the resulting static equilibrium configuration matches a desired input 3D shape. The FlexMaps elastic properties are controlled by locally varying spiraling geometric mesostructures, which are optimized in size and shape to match the global curvature (i.e., bending requests) of the target shape. The design pipeline starts from a quad mesh representing the input 3D shape, which defines the edge size and the total amount of spirals: every quad will embed one spiral. Then, an optimization algorithm tunes the geometry of the spirals by using a simplified pre-computed rod model. This rod model is derived from a non-linear regression algorithm which approximates the non-linear behavior of solid FEM spiral models subject to hundreds of load combinations. This innovative pipeline has been applied to the project of a lightweight plywood pavilion named FlexMaps Pavilion, which is a single-layer piecewise twisted arc that fits a bounding box of 3.90x3.96x3.25 meters.","lang":"eng"}],"conference":{"location":"Barcelona, Spain","start_date":"2019-10-07","name":"IASS: International Association for Shell and Spatial Structures","end_date":"2019-10-10"},"publication":"IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE","language":[{"iso":"eng"}],"author":[{"first_name":"Francesco","full_name":"Laccone, Francesco","last_name":"Laccone"},{"full_name":"Malomo, Luigi","first_name":"Luigi","last_name":"Malomo"},{"id":"2DC83906-F248-11E8-B48F-1D18A9856A87","last_name":"Perez Rodriguez","first_name":"Jesus","full_name":"Perez Rodriguez, Jesus"},{"last_name":"Pietroni","full_name":"Pietroni, Nico","first_name":"Nico"},{"last_name":"Ponchio","first_name":"Federico","full_name":"Ponchio, Federico"},{"orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Paolo","full_name":"Cignoni, Paolo","last_name":"Cignoni"}],"date_published":"2019-10-10T00:00:00Z","page":"509-515","_id":"9261","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"None","publisher":"International Center for Numerical Methods in Engineering","article_processing_charge":"No","quality_controlled":"1","citation":{"ieee":"F. Laccone <i>et al.</i>, “FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels,” in <i>IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE</i>, Barcelona, Spain, 2019, pp. 509–515.","ista":"Laccone F, Malomo L, Perez Rodriguez J, Pietroni N, Ponchio F, Bickel B, Cignoni P. 2019. FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels. IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE. IASS: International Association for Shell and Spatial Structures, 509–515.","chicago":"Laccone, Francesco, Luigi Malomo, Jesus Perez Rodriguez, Nico Pietroni, Federico Ponchio, Bernd Bickel, and Paolo Cignoni. “FlexMaps Pavilion: A Twisted Arc Made of Mesostructured Flat Flexible Panels.” In <i>IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE</i>, 509–15. International Center for Numerical Methods in Engineering, 2019.","apa":"Laccone, F., Malomo, L., Perez Rodriguez, J., Pietroni, N., Ponchio, F., Bickel, B., &#38; Cignoni, P. (2019). FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels. In <i>IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE</i> (pp. 509–515). Barcelona, Spain: International Center for Numerical Methods in Engineering.","short":"F. Laccone, L. Malomo, J. Perez Rodriguez, N. Pietroni, F. Ponchio, B. Bickel, P. Cignoni, in:, IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE, International Center for Numerical Methods in Engineering, 2019, pp. 509–515.","ama":"Laccone F, Malomo L, Perez Rodriguez J, et al. FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels. In: <i>IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE</i>. International Center for Numerical Methods in Engineering; 2019:509-515.","mla":"Laccone, Francesco, et al. “FlexMaps Pavilion: A Twisted Arc Made of Mesostructured Flat Flexible Panels.” <i>IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE</i>, International Center for Numerical Methods in Engineering, 2019, pp. 509–15."},"date_updated":"2023-09-08T11:21:54Z","status":"public","title":"FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels","external_id":{"isi":["000563497600059"]},"isi":1,"publication_identifier":{"isbn":["9788412110104"],"issn":["2518-6582"]},"month":"10","publication_status":"published","year":"2019","date_created":"2021-03-21T23:01:21Z"},{"author":[{"last_name":"Alderighi","full_name":"Alderighi, Thomas","first_name":"Thomas"},{"last_name":"Malomo","first_name":"Luigi","full_name":"Malomo, Luigi"},{"last_name":"Giorgi","full_name":"Giorgi, Daniela","first_name":"Daniela"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel","full_name":"Bickel, Bernd","first_name":"Bernd","orcid":"0000-0001-6511-9385"},{"full_name":"Cignoni, Paolo","first_name":"Paolo","last_name":"Cignoni"},{"last_name":"Pietroni","first_name":"Nico","full_name":"Pietroni, Nico"}],"oa":1,"date_published":"2019-07-01T00:00:00Z","day":"01","abstract":[{"lang":"eng","text":"We propose a novel technique for the automatic design of molds to cast highly complex shapes. The technique generates composite, two-piece molds. Each mold piece is made up of a hard plastic shell and a flexible silicone part. Thanks to the thin, soft, and smartly shaped silicone part, which is kept in place by a hard plastic shell, we can cast objects of unprecedented complexity. An innovative algorithm based on a volumetric analysis defines the layout of the internal cuts in the silicone mold part. Our approach can robustly handle thin protruding features and intertwined topologies that have caused previous methods to fail. We compare our results with state of the art techniques, and we demonstrate the casting of shapes with extremely complex geometry."}],"doi":"10.1145/3306346.3322981","issue":"4","external_id":{"isi":["000475740600084"]},"publication_identifier":{"issn":["0730-0301"]},"date_created":"2019-07-19T06:18:15Z","year":"2019","intvolume":"        38","has_accepted_license":"1","title":"Volume-aware design of composite molds","publisher":"ACM","article_processing_charge":"No","file":[{"checksum":"b4562af94672b44d2a501046427412af","access_level":"open_access","relation":"main_file","file_id":"6651","date_created":"2019-07-19T06:18:53Z","date_updated":"2020-07-14T12:47:35Z","file_size":74316182,"content_type":"application/pdf","file_name":"2019_ACM_Alderighi_AuthorVersion.pdf","creator":"dernst"}],"citation":{"apa":"Alderighi, T., Malomo, L., Giorgi, D., Bickel, B., Cignoni, P., &#38; Pietroni, N. (2019). Volume-aware design of composite molds. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3306346.3322981\">https://doi.org/10.1145/3306346.3322981</a>","chicago":"Alderighi, Thomas, Luigi Malomo, Daniela Giorgi, Bernd Bickel, Paolo Cignoni, and Nico Pietroni. “Volume-Aware Design of Composite Molds.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3306346.3322981\">https://doi.org/10.1145/3306346.3322981</a>.","ista":"Alderighi T, Malomo L, Giorgi D, Bickel B, Cignoni P, Pietroni N. 2019. Volume-aware design of composite molds. ACM Transactions on Graphics. 38(4), 110.","ieee":"T. Alderighi, L. Malomo, D. Giorgi, B. Bickel, P. Cignoni, and N. Pietroni, “Volume-aware design of composite molds,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4. ACM, 2019.","ama":"Alderighi T, Malomo L, Giorgi D, Bickel B, Cignoni P, Pietroni N. Volume-aware design of composite molds. <i>ACM Transactions on Graphics</i>. 2019;38(4). doi:<a href=\"https://doi.org/10.1145/3306346.3322981\">10.1145/3306346.3322981</a>","mla":"Alderighi, Thomas, et al. “Volume-Aware Design of Composite Molds.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4, 110, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3306346.3322981\">10.1145/3306346.3322981</a>.","short":"T. Alderighi, L. Malomo, D. Giorgi, B. Bickel, P. Cignoni, N. Pietroni, ACM Transactions on Graphics 38 (2019)."},"ddc":["000"],"file_date_updated":"2020-07-14T12:47:35Z","language":[{"iso":"eng"}],"project":[{"name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425","grant_number":"715767","call_identifier":"H2020"}],"publication":"ACM Transactions on Graphics","scopus_import":"1","ec_funded":1,"department":[{"_id":"BeBi"}],"type":"journal_article","isi":1,"month":"07","publication_status":"published","volume":38,"date_updated":"2025-04-14T07:28:58Z","status":"public","related_material":{"link":[{"relation":"supplementary_material","description":"YouTube Video","url":"https://youtu.be/SO349S8-x_w"}]},"article_number":"110","quality_controlled":"1","oa_version":"Submitted Version","_id":"6650","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8"},{"day":"04","abstract":[{"lang":"eng","text":"Commercially available full-color 3D printing allows for detailed control of material deposition in a volume, but an exact reproduction of a target surface appearance is hampered by the strong subsurface scattering that causes nontrivial volumetric cross-talk at the print surface. Previous work showed how an iterative optimization scheme based on accumulating absorptive materials at the surface can be used to find a volumetric distribution of print materials that closely approximates a given target appearance.\r\n\r\nIn this work, we first revisit the assumption that pushing the absorptive materials to the surface results in minimal volumetric cross-talk. We design a full-fledged optimization on a small domain for this task and confirm this previously reported heuristic. Then, we extend the above approach that is critically limited to color reproduction on planar surfaces, to arbitrary 3D shapes. Our method enables high-fidelity color texture reproduction on 3D prints by effectively compensating for internal light scattering within arbitrarily shaped objects. In addition, we propose a content-aware gamut mapping that significantly improves color reproduction for the pathological case of thin geometric features. Using a wide range of sample objects with complex textures and geometries, we demonstrate color reproduction whose fidelity is superior to state-of-the-art drivers for color 3D printers."}],"oa":1,"author":[{"full_name":"Sumin, Denis","first_name":"Denis","last_name":"Sumin"},{"last_name":"Weyrich","full_name":"Weyrich, Tim","first_name":"Tim"},{"full_name":"Rittig, Tobias","first_name":"Tobias","last_name":"Rittig"},{"full_name":"Babaei, Vahid","first_name":"Vahid","last_name":"Babaei"},{"full_name":"Nindel, Thomas","first_name":"Thomas","last_name":"Nindel"},{"first_name":"Alexander","full_name":"Wilkie, Alexander","last_name":"Wilkie"},{"last_name":"Didyk","first_name":"Piotr","full_name":"Didyk, Piotr"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","first_name":"Bernd","full_name":"Bickel, Bernd"},{"last_name":"Křivánek","first_name":"Jaroslav","full_name":"Křivánek, Jaroslav"},{"last_name":"Myszkowski","full_name":"Myszkowski, Karol","first_name":"Karol"}],"date_published":"2019-07-04T00:00:00Z","issue":"4","doi":"10.1145/3306346.3322992","has_accepted_license":"1","title":"Geometry-aware scattering compensation for 3D printing","publication_identifier":{"issn":["0730-0301"]},"external_id":{"isi":["000475740600085"]},"intvolume":"        38","date_created":"2019-07-22T07:22:28Z","year":"2019","file_date_updated":"2020-07-14T12:47:36Z","ddc":["000"],"article_processing_charge":"No","publisher":"ACM","file":[{"access_level":"open_access","checksum":"43c2019d6b48ed9c56e31686c4c2d1f5","relation":"main_file","file_id":"6669","date_created":"2019-07-24T07:36:08Z","content_type":"application/pdf","file_name":"2019_ACM_Sumin_AuthorVersion.pdf","creator":"dernst","file_size":10109800,"date_updated":"2020-07-14T12:47:36Z"},{"file_id":"6938","access_level":"open_access","checksum":"f80f365a04e35855fa467ea7ab26b16c","relation":"supplementary_material","file_size":11051245,"date_updated":"2020-07-14T12:47:36Z","content_type":"application/zip","file_name":"sumin19geometry-aware-suppl.zip","creator":"dernst","date_created":"2019-10-11T06:51:07Z"}],"citation":{"ieee":"D. Sumin <i>et al.</i>, “Geometry-aware scattering compensation for 3D printing,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4. ACM, 2019.","ista":"Sumin D, Weyrich T, Rittig T, Babaei V, Nindel T, Wilkie A, Didyk P, Bickel B, Křivánek J, Myszkowski K. 2019. Geometry-aware scattering compensation for 3D printing. ACM Transactions on Graphics. 38(4), 111.","apa":"Sumin, D., Weyrich, T., Rittig, T., Babaei, V., Nindel, T., Wilkie, A., … Myszkowski, K. (2019). Geometry-aware scattering compensation for 3D printing. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3306346.3322992\">https://doi.org/10.1145/3306346.3322992</a>","chicago":"Sumin, Denis, Tim Weyrich, Tobias Rittig, Vahid Babaei, Thomas Nindel, Alexander Wilkie, Piotr Didyk, Bernd Bickel, Jaroslav Křivánek, and Karol Myszkowski. “Geometry-Aware Scattering Compensation for 3D Printing.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3306346.3322992\">https://doi.org/10.1145/3306346.3322992</a>.","short":"D. Sumin, T. Weyrich, T. Rittig, V. Babaei, T. Nindel, A. Wilkie, P. Didyk, B. Bickel, J. Křivánek, K. Myszkowski, ACM Transactions on Graphics 38 (2019).","mla":"Sumin, Denis, et al. “Geometry-Aware Scattering Compensation for 3D Printing.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4, 111, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3306346.3322992\">10.1145/3306346.3322992</a>.","ama":"Sumin D, Weyrich T, Rittig T, et al. Geometry-aware scattering compensation for 3D printing. <i>ACM Transactions on Graphics</i>. 2019;38(4). doi:<a href=\"https://doi.org/10.1145/3306346.3322992\">10.1145/3306346.3322992</a>"},"project":[{"_id":"2508E324-B435-11E9-9278-68D0E5697425","name":"Distributed 3D Object Design","call_identifier":"H2020","grant_number":"642841"},{"grant_number":"715767","call_identifier":"H2020","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425"}],"publication":"ACM Transactions on Graphics","language":[{"iso":"eng"}],"department":[{"_id":"BeBi"}],"type":"journal_article","scopus_import":"1","ec_funded":1,"status":"public","date_updated":"2025-03-31T15:58:17Z","publication_status":"published","volume":38,"month":"07","isi":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"6660","oa_version":"Submitted Version","quality_controlled":"1","article_number":"111"},{"project":[{"grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"day":"06","author":[{"last_name":"Guseinov","id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9819-5077","full_name":"Guseinov, Ruslan","first_name":"Ruslan"}],"oa":1,"date_published":"2019-12-06T00:00:00Z","department":[{"_id":"BeBi"}],"type":"research_data","doi":"10.15479/AT:ISTA:7154","ec_funded":1,"contributor":[{"last_name":"Guseinov","id":"3AB45EE2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9819-5077","first_name":"Ruslan"},{"last_name":"McMahan","first_name":"Connor"},{"first_name":"Jesus","last_name":"Perez Rodriguez","id":"2DC83906-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Daraio","first_name":"Chiara"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel","first_name":"Bernd","orcid":"0000-0001-6511-9385"}],"tmp":{"legal_code_url":"https://creativecommons.org/publicdomain/zero/1.0/legalcode","name":"Creative Commons Public Domain Dedication (CC0 1.0)","image":"/images/cc_0.png","short":"CC0 (1.0)"},"has_accepted_license":"1","date_updated":"2025-06-12T06:58:31Z","status":"public","title":"Supplementary data for \"Programming temporal morphing of self-actuated shells\"","month":"12","year":"2019","date_created":"2019-12-09T07:52:46Z","file_date_updated":"2020-07-14T12:47:50Z","license":"https://creativecommons.org/publicdomain/zero/1.0/","ddc":["000"],"oa_version":"Published Version","_id":"7154","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","related_material":{"record":[{"status":"deleted","id":"8433","relation":"used_in_publication"},{"relation":"used_in_publication","status":"public","id":"7262"}]},"publisher":"Institute of Science and Technology Austria","file":[{"date_created":"2019-12-09T07:52:17Z","creator":"dernst","file_name":"temporal_morphing_supp_data.zip","content_type":"application/x-zip-compressed","file_size":65307107,"date_updated":"2020-07-14T12:47:50Z","relation":"main_file","access_level":"open_access","checksum":"155133e6e188e85b3c0676a5e70b9341","file_id":"7155"}],"article_processing_charge":"No","citation":{"ieee":"R. Guseinov, “Supplementary data for ‘Programming temporal morphing of self-actuated shells.’” Institute of Science and Technology Austria, 2019.","ista":"Guseinov R. 2019. Supplementary data for ‘Programming temporal morphing of self-actuated shells’, Institute of Science and Technology Austria, <a href=\"https://doi.org/10.15479/AT:ISTA:7154\">10.15479/AT:ISTA:7154</a>.","chicago":"Guseinov, Ruslan. “Supplementary Data for ‘Programming Temporal Morphing of Self-Actuated Shells.’” Institute of Science and Technology Austria, 2019. <a href=\"https://doi.org/10.15479/AT:ISTA:7154\">https://doi.org/10.15479/AT:ISTA:7154</a>.","apa":"Guseinov, R. (2019). Supplementary data for “Programming temporal morphing of self-actuated shells.” Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:7154\">https://doi.org/10.15479/AT:ISTA:7154</a>","short":"R. Guseinov, (2019).","mla":"Guseinov, Ruslan. <i>Supplementary Data for “Programming Temporal Morphing of Self-Actuated Shells.”</i> Institute of Science and Technology Austria, 2019, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:7154\">10.15479/AT:ISTA:7154</a>.","ama":"Guseinov R. Supplementary data for “Programming temporal morphing of self-actuated shells.” 2019. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:7154\">10.15479/AT:ISTA:7154</a>"}},{"_id":"7117","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"Submitted Version","related_material":{"record":[{"id":"12897","status":"public","relation":"dissertation_contains"}]},"article_number":"157","quality_controlled":"1","status":"public","date_updated":"2026-07-03T22:30:38Z","isi":1,"month":"11","publication_status":"published","volume":38,"department":[{"_id":"BeBi"}],"type":"journal_article","scopus_import":"1","ec_funded":1,"project":[{"call_identifier":"H2020","grant_number":"715767","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425"}],"publication":"ACM Transactions on Graphics","language":[{"iso":"eng"}],"ddc":["000"],"file_date_updated":"2020-07-14T12:47:49Z","article_processing_charge":"No","publisher":"ACM","file":[{"date_created":"2019-11-26T14:24:26Z","content_type":"application/pdf","file_name":"xcad_sup_mat_siga19.pdf","creator":"bbickel","date_updated":"2020-07-14T12:47:49Z","file_size":1673176,"title":"X-CAD Supplemental Material","access_level":"open_access","checksum":"56a2fb019adcb556d2b022f5e5acb68c","relation":"supplementary_material","file_id":"7119"},{"access_level":"open_access","checksum":"5f29d76aceb5102e766cbab9b17d776e","relation":"main_file","file_id":"7120","date_created":"2019-11-26T14:24:27Z","description":"This is the author's version of the work.","file_size":14563618,"date_updated":"2020-07-14T12:47:49Z","title":"X-CAD: Optimizing CAD Models with Extended Finite Elements","content_type":"application/pdf","creator":"bbickel","file_name":"XCAD_authors_version.pdf"},{"checksum":"0d31e123286cbec9e28b2001c2bb0d55","access_level":"open_access","relation":"main_file","file_id":"7121","date_created":"2019-11-26T14:27:37Z","content_type":"video/mp4","file_name":"XCAD_video.mp4","creator":"bbickel","date_updated":"2020-07-14T12:47:49Z","file_size":259979129}],"citation":{"ama":"Hafner C, Schumacher C, Knoop E, Auzinger T, Bickel B, Bächer M. X-CAD: Optimizing CAD Models with Extended Finite Elements. <i>ACM Transactions on Graphics</i>. 2019;38(6). doi:<a href=\"https://doi.org/10.1145/3355089.3356576\">10.1145/3355089.3356576</a>","mla":"Hafner, Christian, et al. “X-CAD: Optimizing CAD Models with Extended Finite Elements.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 6, 157, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3355089.3356576\">10.1145/3355089.3356576</a>.","short":"C. Hafner, C. Schumacher, E. Knoop, T. Auzinger, B. Bickel, M. Bächer, ACM Transactions on Graphics 38 (2019).","chicago":"Hafner, Christian, Christian Schumacher, Espen Knoop, Thomas Auzinger, Bernd Bickel, and Moritz Bächer. “X-CAD: Optimizing CAD Models with Extended Finite Elements.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3355089.3356576\">https://doi.org/10.1145/3355089.3356576</a>.","apa":"Hafner, C., Schumacher, C., Knoop, E., Auzinger, T., Bickel, B., &#38; Bächer, M. (2019). X-CAD: Optimizing CAD Models with Extended Finite Elements. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3355089.3356576\">https://doi.org/10.1145/3355089.3356576</a>","ista":"Hafner C, Schumacher C, Knoop E, Auzinger T, Bickel B, Bächer M. 2019. X-CAD: Optimizing CAD Models with Extended Finite Elements. ACM Transactions on Graphics. 38(6), 157.","ieee":"C. Hafner, C. Schumacher, E. Knoop, T. Auzinger, B. Bickel, and M. Bächer, “X-CAD: Optimizing CAD Models with Extended Finite Elements,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 6. ACM, 2019."},"has_accepted_license":"1","title":"X-CAD: Optimizing CAD Models with Extended Finite Elements","external_id":{"isi":["000498397300007"]},"publication_identifier":{"issn":["0730-0301"]},"date_created":"2019-11-26T14:22:09Z","year":"2019","intvolume":"        38","issue":"6","article_type":"original","doi":"10.1145/3355089.3356576","day":"06","abstract":[{"lang":"eng","text":"We propose a novel generic shape optimization method for CAD models based on the eXtended Finite Element Method (XFEM). Our method works directly on the intersection between the model and a regular simulation grid, without the need to mesh or remesh, thus removing a bottleneck of classical shape optimization strategies. This is made possible by a novel hierarchical integration scheme that accurately integrates finite element quantities with sub-element precision. For optimization, we efficiently compute analytical shape derivatives of the entire framework, from model intersection to integration rule generation and XFEM simulation. Moreover, we describe a differentiable projection of shape parameters onto a constraint manifold spanned by user-specified shape preservation, consistency, and manufacturability constraints. We demonstrate the utility of our approach by optimizing mass distribution, strength-to-weight ratio, and inverse elastic shape design objectives directly on parameterized 3D CAD models."}],"author":[{"full_name":"Hafner, Christian","first_name":"Christian","id":"400429CC-F248-11E8-B48F-1D18A9856A87","last_name":"Hafner"},{"last_name":"Schumacher","full_name":"Schumacher, Christian","first_name":"Christian"},{"last_name":"Knoop","full_name":"Knoop, Espen","first_name":"Espen"},{"id":"4718F954-F248-11E8-B48F-1D18A9856A87","last_name":"Auzinger","first_name":"Thomas","full_name":"Auzinger, Thomas","orcid":"0000-0002-1546-3265"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd"},{"last_name":"Bächer","full_name":"Bächer, Moritz","first_name":"Moritz"}],"oa":1,"date_published":"2019-11-06T00:00:00Z"},{"_id":"12","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"Submitted Version","related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/interactive-software-tool-makes-complex-mold-design-simple/"}]},"article_number":"135","quality_controlled":"1","status":"public","date_updated":"2025-03-31T15:58:16Z","publist_id":"8044","isi":1,"publication_status":"published","volume":37,"month":"08","department":[{"_id":"BeBi"}],"type":"journal_article","scopus_import":"1","ec_funded":1,"project":[{"name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","_id":"24F9549A-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"715767"},{"name":"Distributed 3D Object Design","_id":"2508E324-B435-11E9-9278-68D0E5697425","grant_number":"642841","call_identifier":"H2020"}],"publication":"ACM Transaction on Graphics","language":[{"iso":"eng"}],"pubrep_id":"1037","ddc":["004","516","670"],"file_date_updated":"2020-07-14T12:44:38Z","publisher":"ACM","file":[{"date_created":"2018-12-12T10:18:38Z","file_size":104225664,"date_updated":"2020-07-14T12:44:38Z","content_type":"application/pdf","file_name":"IST-2018-1037-v1+1_CoreCavity-AuthorVersion.pdf","creator":"system","checksum":"6a5368bc86c4e1a9fcfe588fd1f14ee8","access_level":"open_access","relation":"main_file","file_id":"5360"},{"checksum":"3861e693ba47c51f3ec7b7867d573a61","access_level":"open_access","relation":"main_file","file_id":"5361","date_created":"2018-12-12T10:18:39Z","date_updated":"2020-07-14T12:44:38Z","file_size":377743553,"content_type":"application/zip","file_name":"IST-2018-1037-v1+2_CoreCavity-Supplemental.zip","creator":"system"},{"access_level":"open_access","checksum":"490040c685ed869536e2a18f5a906b94","relation":"main_file","file_id":"5362","date_created":"2018-12-12T10:18:41Z","file_size":162634396,"date_updated":"2020-07-14T12:44:38Z","content_type":"video/vnd.objectvideo","file_name":"IST-2018-1037-v1+3_CoreCavity-Video.mp4","creator":"system"},{"file_id":"5363","access_level":"open_access","checksum":"be7fc8b229adda727419b6504b3b9352","relation":"main_file","date_updated":"2020-07-14T12:44:38Z","file_size":527972,"content_type":"image/jpeg","file_name":"IST-2018-1037-v1+4_CoreCavity-RepresentativeImage.jpg","creator":"system","date_created":"2018-12-12T10:18:42Z"}],"article_processing_charge":"No","citation":{"ieee":"K. Nakashima, T. Auzinger, E. Iarussi, R. Zhang, T. Igarashi, and B. Bickel, “CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid molds,” <i>ACM Transaction on Graphics</i>, vol. 37, no. 4. ACM, 2018.","ista":"Nakashima K, Auzinger T, Iarussi E, Zhang R, Igarashi T, Bickel B. 2018. CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid molds. ACM Transaction on Graphics. 37(4), 135.","chicago":"Nakashima, Kazutaka, Thomas Auzinger, Emmanuel Iarussi, Ran Zhang, Takeo Igarashi, and Bernd Bickel. “CoreCavity: Interactive Shell Decomposition for Fabrication with Two-Piece Rigid Molds.” <i>ACM Transaction on Graphics</i>. ACM, 2018. <a href=\"https://doi.org/10.1145/3197517.3201341\">https://doi.org/10.1145/3197517.3201341</a>.","apa":"Nakashima, K., Auzinger, T., Iarussi, E., Zhang, R., Igarashi, T., &#38; Bickel, B. (2018). CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid molds. <i>ACM Transaction on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3197517.3201341\">https://doi.org/10.1145/3197517.3201341</a>","short":"K. Nakashima, T. Auzinger, E. Iarussi, R. Zhang, T. Igarashi, B. Bickel, ACM Transaction on Graphics 37 (2018).","mla":"Nakashima, Kazutaka, et al. “CoreCavity: Interactive Shell Decomposition for Fabrication with Two-Piece Rigid Molds.” <i>ACM Transaction on Graphics</i>, vol. 37, no. 4, 135, ACM, 2018, doi:<a href=\"https://doi.org/10.1145/3197517.3201341\">10.1145/3197517.3201341</a>.","ama":"Nakashima K, Auzinger T, Iarussi E, Zhang R, Igarashi T, Bickel B. CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid molds. <i>ACM Transaction on Graphics</i>. 2018;37(4). doi:<a href=\"https://doi.org/10.1145/3197517.3201341\">10.1145/3197517.3201341</a>"},"has_accepted_license":"1","title":"CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid molds","external_id":{"isi":["000448185000096"]},"date_created":"2018-12-11T11:44:09Z","year":"2018","intvolume":"        37","issue":"4","doi":"10.1145/3197517.3201341","day":"04","abstract":[{"lang":"eng","text":"Molding is a popular mass production method, in which the initial expenses for the mold are offset by the low per-unit production cost. However, the physical fabrication constraints of the molding technique commonly restrict the shape of moldable objects. For a complex shape, a decomposition of the object into moldable parts is a common strategy to address these constraints, with plastic model kits being a popular and illustrative example. However, conducting such a decomposition requires considerable expertise, and it depends on the technical aspects of the fabrication technique, as well as aesthetic considerations. We present an interactive technique to create such decompositions for two-piece molding, in which each part of the object is cast between two rigid mold pieces. Given the surface description of an object, we decompose its thin-shell equivalent into moldable parts by first performing a coarse decomposition and then utilizing an active contour model for the boundaries between individual parts. Formulated as an optimization problem, the movement of the contours is guided by an energy reflecting fabrication constraints to ensure the moldability of each part. Simultaneously, the user is provided with editing capabilities to enforce aesthetic guidelines. Our interactive interface provides control of the contour positions by allowing, for example, the alignment of part boundaries with object features. Our technique enables a novel workflow, as it empowers novice users to explore the design space, and it generates fabrication-ready two-piece molds that can be used either for casting or industrial injection molding of free-form objects."}],"author":[{"full_name":"Nakashima, Kazutaka","first_name":"Kazutaka","last_name":"Nakashima"},{"orcid":"0000-0002-1546-3265","full_name":"Auzinger, Thomas","first_name":"Thomas","last_name":"Auzinger","id":"4718F954-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Emmanuel","full_name":"Iarussi, Emmanuel","id":"33F19F16-F248-11E8-B48F-1D18A9856A87","last_name":"Iarussi"},{"first_name":"Ran","full_name":"Zhang, Ran","orcid":"0000-0002-3808-281X","id":"4DDBCEB0-F248-11E8-B48F-1D18A9856A87","last_name":"Zhang"},{"first_name":"Takeo","full_name":"Igarashi, Takeo","last_name":"Igarashi"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel","full_name":"Bickel, Bernd","first_name":"Bernd","orcid":"0000-0001-6511-9385"}],"oa":1,"date_published":"2018-08-04T00:00:00Z"},{"type":"journal_article","department":[{"_id":"BeBi"}],"ec_funded":1,"alternative_title":["ACM Transactions on Graphics"],"scopus_import":"1","publication":"ACM Transactions on Graphics","project":[{"call_identifier":"H2020","grant_number":"715767","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling"}],"pubrep_id":"1028","language":[{"iso":"eng"}],"oa_version":"Submitted Version","_id":"304","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","article_number":"159","quality_controlled":"1","related_material":{"link":[{"url":"https://ist.ac.at/en/news/color-effects-from-transparent-3d-printed-nanostructures/","description":"News on IST Homepage","relation":"press_release"}]},"status":"public","date_updated":"2025-04-14T07:28:57Z","isi":1,"month":"08","publication_status":"published","volume":37,"acknowledgement":"This work was in part supported by King Abdullah University of Science and Technology Baseline Funding.","issue":"4","doi":"10.1145/3197517.3201376","abstract":[{"lang":"eng","text":"Additive manufacturing has recently seen drastic improvements in resolution, making it now possible to fabricate features at scales of hundreds or even dozens of nanometers, which previously required very expensive lithographic methods.\r\nAs a result, additive manufacturing now seems poised for optical applications, including those relevant to computer graphics, such as material design, as well as display and imaging applications.\r\n \r\nIn this work, we explore the use of additive manufacturing for generating structural colors, where the structures are designed using a fabrication-aware optimization process.\r\nThis requires a combination of full-wave simulation, a feasible parameterization of the design space, and a tailored optimization procedure.\r\nMany of these components should be re-usable for the design of other optical structures at this scale.\r\n \r\nWe show initial results of material samples fabricated based on our designs.\r\nWhile these suffer from the prototype character of state-of-the-art fabrication hardware, we believe they clearly demonstrate the potential of additive nanofabrication for structural colors and other graphics applications."}],"day":"01","date_published":"2018-08-01T00:00:00Z","author":[{"orcid":"0000-0002-1546-3265","full_name":"Auzinger, Thomas","first_name":"Thomas","last_name":"Auzinger","id":"4718F954-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Heidrich","first_name":"Wolfgang","full_name":"Heidrich, Wolfgang"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel","first_name":"Bernd","full_name":"Bickel, Bernd","orcid":"0000-0001-6511-9385"}],"oa":1,"file_date_updated":"2020-07-14T12:45:59Z","ddc":["000","535","680"],"citation":{"ista":"Auzinger T, Heidrich W, Bickel B. 2018. Computational design of nanostructural color for additive manufacturing. ACM Transactions on Graphics. 37(4), 159.","ieee":"T. Auzinger, W. Heidrich, and B. Bickel, “Computational design of nanostructural color for additive manufacturing,” <i>ACM Transactions on Graphics</i>, vol. 37, no. 4. ACM, 2018.","chicago":"Auzinger, Thomas, Wolfgang Heidrich, and Bernd Bickel. “Computational Design of Nanostructural Color for Additive Manufacturing.” <i>ACM Transactions on Graphics</i>. ACM, 2018. <a href=\"https://doi.org/10.1145/3197517.3201376\">https://doi.org/10.1145/3197517.3201376</a>.","apa":"Auzinger, T., Heidrich, W., &#38; Bickel, B. (2018). Computational design of nanostructural color for additive manufacturing. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3197517.3201376\">https://doi.org/10.1145/3197517.3201376</a>","short":"T. Auzinger, W. Heidrich, B. Bickel, ACM Transactions on Graphics 37 (2018).","ama":"Auzinger T, Heidrich W, Bickel B. Computational design of nanostructural color for additive manufacturing. <i>ACM Transactions on Graphics</i>. 2018;37(4). doi:<a href=\"https://doi.org/10.1145/3197517.3201376\">10.1145/3197517.3201376</a>","mla":"Auzinger, Thomas, et al. “Computational Design of Nanostructural Color for Additive Manufacturing.” <i>ACM Transactions on Graphics</i>, vol. 37, no. 4, 159, ACM, 2018, doi:<a href=\"https://doi.org/10.1145/3197517.3201376\">10.1145/3197517.3201376</a>."},"publisher":"ACM","article_processing_charge":"No","file":[{"date_created":"2018-12-12T10:18:14Z","file_name":"IST-2018-1024-v1+1_NanoStructColor-Auzinger-paper.pdf","creator":"system","content_type":"application/pdf","date_updated":"2020-07-14T12:45:59Z","file_size":10751684,"relation":"main_file","access_level":"open_access","checksum":"dcdcc955a4c1c6d2599aeebb97d2e7b9","file_id":"5334"},{"access_level":"open_access","checksum":"cae52b3a8d5e97be84771cd61ea2f75e","relation":"main_file","file_id":"5335","date_created":"2018-12-12T10:18:15Z","date_updated":"2020-07-14T12:45:59Z","file_size":20755095,"content_type":"application/pdf","file_name":"IST-2018-1024-v1+2_NanoStructColor-Auzinger-supplemental.pdf","creator":"system"},{"date_updated":"2020-07-14T12:45:59Z","file_size":2186944,"file_name":"IST-2018-1024-v1+3_NanoStructColor-Auzinger-image.jpg","creator":"system","content_type":"image/jpeg","date_created":"2018-12-12T10:18:16Z","file_id":"5336","relation":"main_file","access_level":"open_access","checksum":"76dd90648f75779d3f64e324b6daaffe"},{"file_id":"5337","access_level":"open_access","checksum":"c3a5b775a0ecdb20ccefb8d9646ec140","relation":"main_file","date_updated":"2020-07-14T12:45:59Z","file_size":2734352,"content_type":"application/x-7z-compressed","creator":"system","file_name":"IST-2018-1024-v1+4_NanoStructColor-Auzinger-blueprint.7z","date_created":"2018-12-12T10:18:17Z"},{"checksum":"dcdcc955a4c1c6d2599aeebb97d2e7b9","access_level":"open_access","relation":"main_file","file_id":"5338","date_created":"2018-12-12T10:18:18Z","content_type":"application/pdf","creator":"system","file_name":"IST-2018-1024-v2+1_NanoStructColor-Auzinger-paper.pdf","date_updated":"2020-07-14T12:45:59Z","file_size":10751684},{"date_created":"2018-12-12T10:18:19Z","file_size":2186944,"date_updated":"2020-07-14T12:45:59Z","content_type":"image/jpeg","file_name":"IST-2018-1024-v2+3_NanoStructColor-Auzinger-image.jpg","creator":"system","access_level":"open_access","checksum":"76dd90648f75779d3f64e324b6daaffe","relation":"main_file","file_id":"5339"},{"date_updated":"2020-07-14T12:45:59Z","file_size":2734352,"content_type":"application/x-7z-compressed","creator":"system","file_name":"IST-2018-1024-v2+4_NanoStructColor-Auzinger-blueprint.7z","date_created":"2018-12-12T10:18:20Z","file_id":"5340","checksum":"c3a5b775a0ecdb20ccefb8d9646ec140","access_level":"open_access","relation":"main_file"},{"content_type":"application/pdf","file_name":"IST-2018-1024-v2+5_NanoStructColor-Auzinger-supplemental.pdf","creator":"system","date_updated":"2020-07-14T12:45:59Z","file_size":20755762,"date_created":"2018-12-12T10:18:21Z","file_id":"5341","checksum":"667e91b686db41e44d855a4fb2137402","access_level":"open_access","relation":"main_file"},{"creator":"system","file_name":"IST-2018-1024-v3+1_NanoStructColor-Auzinger-paper.pdf","content_type":"application/pdf","file_size":10751684,"date_updated":"2020-07-14T12:45:59Z","date_created":"2018-12-12T10:18:22Z","file_id":"5342","relation":"main_file","access_level":"open_access","checksum":"dcdcc955a4c1c6d2599aeebb97d2e7b9"},{"file_id":"5343","access_level":"open_access","checksum":"76dd90648f75779d3f64e324b6daaffe","relation":"main_file","content_type":"image/jpeg","creator":"system","file_name":"IST-2018-1024-v3+3_NanoStructColor-Auzinger-image.jpg","file_size":2186944,"date_updated":"2020-07-14T12:45:59Z","date_created":"2018-12-12T10:18:22Z"},{"relation":"main_file","access_level":"open_access","checksum":"c3a5b775a0ecdb20ccefb8d9646ec140","file_id":"5344","date_created":"2018-12-12T10:18:23Z","date_updated":"2020-07-14T12:45:59Z","file_size":2734352,"file_name":"IST-2018-1024-v3+4_NanoStructColor-Auzinger-blueprint.7z","creator":"system","content_type":"application/x-7z-compressed"},{"file_id":"5345","access_level":"open_access","checksum":"667e91b686db41e44d855a4fb2137402","relation":"main_file","date_updated":"2020-07-14T12:45:59Z","file_size":20755762,"content_type":"application/pdf","creator":"system","file_name":"IST-2018-1024-v3+5_NanoStructColor-Auzinger-supplemental.pdf","date_created":"2018-12-12T10:18:24Z"},{"date_created":"2018-12-12T10:18:25Z","date_updated":"2020-07-14T12:45:59Z","file_size":69698068,"content_type":"application/vnd.openxmlformats-officedocument.presentationml.presentation","file_name":"IST-2018-1024-v3+6_NanoStructColor-Auzinger-presentation.pptx","creator":"system","access_level":"open_access","checksum":"72dce35388fb1aa7953df4d9ae3d02f1","relation":"main_file","file_id":"5346"}],"title":"Computational design of nanostructural color for additive manufacturing","has_accepted_license":"1","date_created":"2018-12-11T11:45:43Z","year":"2018","intvolume":"        37","external_id":{"isi":["000448185000120"]}},{"issue":"4","doi":"10.1145/3197517.3201381","abstract":[{"lang":"eng","text":"We propose a new method for fabricating digital objects through reusable silicone molds. Molds are generated by casting liquid silicone into custom 3D printed containers called metamolds. Metamolds automatically define the cuts that are needed to extract the cast object from the silicone mold. The shape of metamolds is designed through a novel segmentation technique, which takes into account both geometric and topological constraints involved in the process of mold casting. Our technique is simple, does not require changing the shape or topology of the input objects, and only requires off-the- shelf materials and technologies. We successfully tested our method on a set of challenging examples with complex shapes and rich geometric detail. © 2018 Association for Computing Machinery."}],"day":"04","date_published":"2018-08-04T00:00:00Z","author":[{"last_name":"Alderighi","first_name":"Thomas","full_name":"Alderighi, Thomas"},{"last_name":"Malomo","first_name":"Luigi","full_name":"Malomo, Luigi"},{"last_name":"Giorgi","full_name":"Giorgi, Daniela","first_name":"Daniela"},{"first_name":"Nico","full_name":"Pietroni, Nico","last_name":"Pietroni"},{"first_name":"Bernd","full_name":"Bickel, Bernd","orcid":"0000-0001-6511-9385","id":"49876194-F248-11E8-B48F-1D18A9856A87","last_name":"Bickel"},{"first_name":"Paolo","full_name":"Cignoni, Paolo","last_name":"Cignoni"}],"oa":1,"ddc":["004"],"file_date_updated":"2020-07-14T12:44:43Z","citation":{"mla":"Alderighi, Thomas, et al. “Metamolds: Computational Design of Silicone Molds.” <i>ACM Trans. Graph.</i>, vol. 37, no. 4, 136, ACM, 2018, doi:<a href=\"https://doi.org/10.1145/3197517.3201381\">10.1145/3197517.3201381</a>.","ama":"Alderighi T, Malomo L, Giorgi D, Pietroni N, Bickel B, Cignoni P. Metamolds: Computational design of silicone molds. <i>ACM Trans Graph</i>. 2018;37(4). doi:<a href=\"https://doi.org/10.1145/3197517.3201381\">10.1145/3197517.3201381</a>","short":"T. Alderighi, L. Malomo, D. Giorgi, N. Pietroni, B. Bickel, P. Cignoni, ACM Trans. Graph. 37 (2018).","chicago":"Alderighi, Thomas, Luigi Malomo, Daniela Giorgi, Nico Pietroni, Bernd Bickel, and Paolo Cignoni. “Metamolds: Computational Design of Silicone Molds.” <i>ACM Trans. Graph.</i> ACM, 2018. <a href=\"https://doi.org/10.1145/3197517.3201381\">https://doi.org/10.1145/3197517.3201381</a>.","apa":"Alderighi, T., Malomo, L., Giorgi, D., Pietroni, N., Bickel, B., &#38; Cignoni, P. (2018). Metamolds: Computational design of silicone molds. <i>ACM Trans. Graph.</i> ACM. <a href=\"https://doi.org/10.1145/3197517.3201381\">https://doi.org/10.1145/3197517.3201381</a>","ista":"Alderighi T, Malomo L, Giorgi D, Pietroni N, Bickel B, Cignoni P. 2018. Metamolds: Computational design of silicone molds. ACM Trans. Graph. 37(4), 136.","ieee":"T. Alderighi, L. Malomo, D. Giorgi, N. Pietroni, B. Bickel, and P. Cignoni, “Metamolds: Computational design of silicone molds,” <i>ACM Trans. Graph.</i>, vol. 37, no. 4. ACM, 2018."},"publisher":"ACM","article_processing_charge":"No","file":[{"file_id":"5374","access_level":"open_access","checksum":"61d46273dca4de626accef1d17a0aaad","relation":"main_file","content_type":"application/pdf","file_name":"IST-2018-1038-v1+1_metamolds_authorversion.pdf","creator":"system","file_size":91939066,"date_updated":"2020-07-14T12:44:43Z","date_created":"2018-12-12T10:18:52Z"}],"title":"Metamolds: Computational design of silicone molds","has_accepted_license":"1","date_created":"2018-12-11T11:44:09Z","year":"2018","intvolume":"        37","external_id":{"isi":["000448185000097"]},"type":"journal_article","department":[{"_id":"BeBi"}],"ec_funded":1,"scopus_import":"1","publication":"ACM Trans. Graph.","project":[{"grant_number":"715767","call_identifier":"H2020","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling"}],"pubrep_id":"1038","language":[{"iso":"eng"}],"_id":"13","oa_version":"Submitted Version","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","article_number":"136","quality_controlled":"1","related_material":{"link":[{"url":"https://ist.ac.at/en/news/metamolds-molding-a-mold/","description":"News on IST Homepage","relation":"press_release"}]},"publist_id":"8043","status":"public","date_updated":"2025-04-14T07:28:57Z","isi":1,"volume":37,"month":"08","publication_status":"published"},{"project":[{"grant_number":"715767","call_identifier":"H2020","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling"},{"_id":"25082902-B435-11E9-9278-68D0E5697425","name":"Soft-bodied intelligence for Manipulation","call_identifier":"H2020","grant_number":"645599"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","call_identifier":"H2020"}],"publication":"ACM Transactions on Graphics","language":[{"iso":"eng"}],"pubrep_id":"1068","department":[{"_id":"BeBi"}],"type":"journal_article","scopus_import":"1","ec_funded":1,"date_updated":"2025-03-31T15:59:13Z","status":"public","isi":1,"volume":37,"publication_status":"published","month":"11","_id":"5976","oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_number":"241","quality_controlled":"1","day":"01","abstract":[{"lang":"eng","text":"We propose FlexMaps, a novel framework for fabricating smooth shapes out of flat, flexible panels with tailored mechanical properties. We start by mapping the 3D surface onto a 2D domain as in traditional UV mapping to design a set of deformable flat panels called FlexMaps. For these panels, we design and obtain specific mechanical properties such that, once they are assembled, the static equilibrium configuration matches the desired 3D shape. FlexMaps can be fabricated from an almost rigid material, such as wood or plastic, and are made flexible in a controlled way by using computationally designed spiraling microstructures."}],"author":[{"last_name":"Malomo","full_name":"Malomo, Luigi","first_name":"Luigi"},{"last_name":"Perez Rodriguez","id":"2DC83906-F248-11E8-B48F-1D18A9856A87","full_name":"Perez Rodriguez, Jesus","first_name":"Jesus"},{"full_name":"Iarussi, Emmanuel","first_name":"Emmanuel","last_name":"Iarussi","id":"33F19F16-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Pietroni","first_name":"Nico","full_name":"Pietroni, Nico"},{"last_name":"Miguel","full_name":"Miguel, Eder","first_name":"Eder"},{"first_name":"Paolo","full_name":"Cignoni, Paolo","last_name":"Cignoni"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd"}],"oa":1,"date_published":"2018-11-01T00:00:00Z","issue":"6","article_type":"original","doi":"10.1145/3272127.3275076","has_accepted_license":"1","title":"FlexMaps: Computational design of flat flexible shells for shaping 3D objects","external_id":{"isi":["000455953100064"]},"publication_identifier":{"issn":["0730-0301"]},"date_created":"2019-02-13T13:12:53Z","year":"2018","intvolume":"        37","file_date_updated":"2020-07-14T12:47:14Z","ddc":["000"],"file":[{"date_created":"2019-09-23T12:48:52Z","date_updated":"2020-07-14T12:47:14Z","file_size":100109811,"content_type":"application/pdf","creator":"bbickel","file_name":"flexmaps_author_version.pdf","checksum":"d0529a41c78b37ab8840685579fb33b4","access_level":"open_access","relation":"main_file","file_id":"6901"}],"article_processing_charge":"No","publisher":"Association for Computing Machinery","citation":{"apa":"Malomo, L., Perez Rodriguez, J., Iarussi, E., Pietroni, N., Miguel, E., Cignoni, P., &#38; Bickel, B. (2018). FlexMaps: Computational design of flat flexible shells for shaping 3D objects. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3272127.3275076\">https://doi.org/10.1145/3272127.3275076</a>","chicago":"Malomo, Luigi, Jesus Perez Rodriguez, Emmanuel Iarussi, Nico Pietroni, Eder Miguel, Paolo Cignoni, and Bernd Bickel. “FlexMaps: Computational Design of Flat Flexible Shells for Shaping 3D Objects.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2018. <a href=\"https://doi.org/10.1145/3272127.3275076\">https://doi.org/10.1145/3272127.3275076</a>.","ieee":"L. Malomo <i>et al.</i>, “FlexMaps: Computational design of flat flexible shells for shaping 3D objects,” <i>ACM Transactions on Graphics</i>, vol. 37, no. 6. Association for Computing Machinery, 2018.","ista":"Malomo L, Perez Rodriguez J, Iarussi E, Pietroni N, Miguel E, Cignoni P, Bickel B. 2018. FlexMaps: Computational design of flat flexible shells for shaping 3D objects. ACM Transactions on Graphics. 37(6), 241.","mla":"Malomo, Luigi, et al. “FlexMaps: Computational Design of Flat Flexible Shells for Shaping 3D Objects.” <i>ACM Transactions on Graphics</i>, vol. 37, no. 6, 241, Association for Computing Machinery, 2018, doi:<a href=\"https://doi.org/10.1145/3272127.3275076\">10.1145/3272127.3275076</a>.","ama":"Malomo L, Perez Rodriguez J, Iarussi E, et al. FlexMaps: Computational design of flat flexible shells for shaping 3D objects. <i>ACM Transactions on Graphics</i>. 2018;37(6). doi:<a href=\"https://doi.org/10.1145/3272127.3275076\">10.1145/3272127.3275076</a>","short":"L. Malomo, J. Perez Rodriguez, E. Iarussi, N. Pietroni, E. Miguel, P. Cignoni, B. Bickel, ACM Transactions on Graphics 37 (2018)."}},{"file":[{"date_created":"2019-02-14T14:09:28Z","creator":"kschuh","file_name":"StylizedFabricationSTAR-Personal.pdf","content_type":"application/pdf","file_size":6209349,"date_updated":"2020-07-14T12:47:15Z","relation":"main_file","access_level":"open_access","checksum":"d2bbe5c658d8159fbe9016a4f5e82b19","file_id":"6004"}],"publisher":"Wiley","article_processing_charge":"No","citation":{"ieee":"B. Bickel, P. Cignoni, L. Malomo, and N. Pietroni, “State of the art on stylized fabrication,” <i>Computer Graphics Forum</i>, vol. 37, no. 6. Wiley, pp. 325–342, 2018.","ista":"Bickel B, Cignoni P, Malomo L, Pietroni N. 2018. State of the art on stylized fabrication. Computer Graphics Forum. 37(6), 325–342.","chicago":"Bickel, Bernd, Paolo Cignoni, Luigi Malomo, and Nico Pietroni. “State of the Art on Stylized Fabrication.” <i>Computer Graphics Forum</i>. Wiley, 2018. <a href=\"https://doi.org/10.1111/cgf.13327\">https://doi.org/10.1111/cgf.13327</a>.","apa":"Bickel, B., Cignoni, P., Malomo, L., &#38; Pietroni, N. (2018). State of the art on stylized fabrication. <i>Computer Graphics Forum</i>. Wiley. <a href=\"https://doi.org/10.1111/cgf.13327\">https://doi.org/10.1111/cgf.13327</a>","short":"B. Bickel, P. Cignoni, L. Malomo, N. Pietroni, Computer Graphics Forum 37 (2018) 325–342.","mla":"Bickel, Bernd, et al. “State of the Art on Stylized Fabrication.” <i>Computer Graphics Forum</i>, vol. 37, no. 6, Wiley, 2018, pp. 325–42, doi:<a href=\"https://doi.org/10.1111/cgf.13327\">10.1111/cgf.13327</a>.","ama":"Bickel B, Cignoni P, Malomo L, Pietroni N. State of the art on stylized fabrication. <i>Computer Graphics Forum</i>. 2018;37(6):325-342. doi:<a href=\"https://doi.org/10.1111/cgf.13327\">10.1111/cgf.13327</a>"},"file_date_updated":"2020-07-14T12:47:15Z","ddc":["004"],"external_id":{"isi":["000437272800019"]},"publication_identifier":{"issn":["0167-7055"]},"date_created":"2019-02-14T13:52:25Z","year":"2018","intvolume":"        37","has_accepted_license":"1","title":"State of the art on stylized fabrication","doi":"10.1111/cgf.13327","issue":"6","author":[{"orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Cignoni","full_name":"Cignoni, Paolo","first_name":"Paolo"},{"last_name":"Malomo","first_name":"Luigi","full_name":"Malomo, Luigi"},{"last_name":"Pietroni","full_name":"Pietroni, Nico","first_name":"Nico"}],"oa":1,"date_published":"2018-09-01T00:00:00Z","day":"01","abstract":[{"lang":"eng","text":"Digital fabrication devices are powerful tools for creating tangible reproductions of 3D digital models. Most available printing technologies aim at producing an accurate copy of a tridimensional shape. However, fabrication technologies can also be used to create a stylistic representation of a digital shape. We refer to this class of methods as ‘stylized fabrication methods’. These methods abstract geometric and physical features of a given shape to create an unconventional representation, to produce an optical illusion or to devise a particular interaction with the fabricated model. In this state‐of‐the‐art report, we classify and overview this broad and emerging class of approaches and also propose possible directions for future research."}],"quality_controlled":"1","_id":"6003","page":"325-342","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"Submitted Version","isi":1,"month":"09","publication_status":"published","volume":37,"status":"public","date_updated":"2025-04-14T07:28:57Z","scopus_import":"1","ec_funded":1,"department":[{"_id":"BeBi"}],"type":"journal_article","language":[{"iso":"eng"}],"pubrep_id":"1051","project":[{"_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","grant_number":"715767","call_identifier":"H2020"}],"publication":"Computer Graphics Forum"},{"type":"conference","department":[{"_id":"BeBi"}],"doi":"10.1109/icra.2018.8461106","scopus_import":"1","conference":{"start_date":"2018-05-21","location":"Brisbane, Australia","end_date":"2018-05-25","name":"ICRA: International Conference on Robotics and Automation"},"abstract":[{"text":"In the context of robotic manipulation and grasping, the shift from a view that is static (force closure of a single posture) and contact-deprived (only contact for force closure is allowed, everything else is obstacle) towards a view that is dynamic and contact-rich (soft manipulation) has led to an increased interest in soft hands. These hands can easily exploit environmental constraints and object surfaces without risk, and safely interact with humans, but present also some challenges. Designing them is difficult, as well as predicting, modelling, and “programming” their interactions with the objects and the environment. This paper tackles the problem of simulating them in a fast and effective way, leveraging on novel and existing simulation technologies. We present a triple-layered simulation framework where dynamic properties such as stiffness are determined from slow but accurate FEM simulation data once, and then condensed into a lumped parameter model that can be used to fast simulate soft fingers and soft hands. We apply our approach to the simulation of soft pneumatic fingers.","lang":"eng"}],"day":"10","date_published":"2018-09-10T00:00:00Z","author":[{"last_name":"Pozzi","first_name":"Maria","full_name":"Pozzi, Maria"},{"first_name":"Eder","full_name":"Miguel Villalba, Eder","orcid":"0000-0001-5665-0430","id":"3FB91342-F248-11E8-B48F-1D18A9856A87","last_name":"Miguel Villalba"},{"last_name":"Deimel","first_name":"Raphael","full_name":"Deimel, Raphael"},{"last_name":"Malvezzi","full_name":"Malvezzi, Monica","first_name":"Monica"},{"last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","first_name":"Bernd","full_name":"Bickel, Bernd"},{"last_name":"Brock","full_name":"Brock, Oliver","first_name":"Oliver"},{"first_name":"Domenico","full_name":"Prattichizzo, Domenico","last_name":"Prattichizzo"}],"language":[{"iso":"eng"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"6195","oa_version":"None","quality_controlled":"1","citation":{"ista":"Pozzi M, Miguel Villalba E, Deimel R, Malvezzi M, Bickel B, Brock O, Prattichizzo D. 2018. Efficient FEM-based simulation of soft robots modeled as kinematic chains. ICRA: International Conference on Robotics and Automation, 8461106.","ieee":"M. Pozzi <i>et al.</i>, “Efficient FEM-based simulation of soft robots modeled as kinematic chains,” presented at the ICRA: International Conference on Robotics and Automation, Brisbane, Australia, 2018.","chicago":"Pozzi, Maria, Eder Miguel Villalba, Raphael Deimel, Monica Malvezzi, Bernd Bickel, Oliver Brock, and Domenico Prattichizzo. “Efficient FEM-Based Simulation of Soft Robots Modeled as Kinematic Chains.” IEEE, 2018. <a href=\"https://doi.org/10.1109/icra.2018.8461106\">https://doi.org/10.1109/icra.2018.8461106</a>.","apa":"Pozzi, M., Miguel Villalba, E., Deimel, R., Malvezzi, M., Bickel, B., Brock, O., &#38; Prattichizzo, D. (2018). Efficient FEM-based simulation of soft robots modeled as kinematic chains. Presented at the ICRA: International Conference on Robotics and Automation, Brisbane, Australia: IEEE. <a href=\"https://doi.org/10.1109/icra.2018.8461106\">https://doi.org/10.1109/icra.2018.8461106</a>","short":"M. Pozzi, E. Miguel Villalba, R. Deimel, M. Malvezzi, B. Bickel, O. Brock, D. Prattichizzo, in:, IEEE, 2018.","mla":"Pozzi, Maria, et al. <i>Efficient FEM-Based Simulation of Soft Robots Modeled as Kinematic Chains</i>. 8461106, IEEE, 2018, doi:<a href=\"https://doi.org/10.1109/icra.2018.8461106\">10.1109/icra.2018.8461106</a>.","ama":"Pozzi M, Miguel Villalba E, Deimel R, et al. Efficient FEM-based simulation of soft robots modeled as kinematic chains. In: IEEE; 2018. doi:<a href=\"https://doi.org/10.1109/icra.2018.8461106\">10.1109/icra.2018.8461106</a>"},"article_number":"8461106","article_processing_charge":"No","publisher":"IEEE","title":"Efficient FEM-based simulation of soft robots modeled as kinematic chains","status":"public","date_updated":"2023-09-19T14:49:03Z","year":"2018","date_created":"2019-04-04T09:50:38Z","month":"09","publication_identifier":{"isbn":["9781538630815"]},"publication_status":"published","isi":1,"external_id":{"isi":["000446394503031"]}},{"department":[{"_id":"BeBi"}],"type":"journal_article","scopus_import":"1","doi":"10.1016/j.wneu.2018.02.096","day":"01","publication":"World Neurosurgery","abstract":[{"text":"Objective: To report long-term results after Pipeline Embolization Device (PED) implantation, characterize complex and standard aneurysms comprehensively, and introduce a modified flow disruption scale. Methods: We retrospectively reviewed a consecutive series of 40 patients harboring 59 aneurysms treated with 54 PEDs. Aneurysm complexity was assessed using our proposed classification. Immediate angiographic results were analyzed using previously published grading scales and our novel flow disruption scale. Results: According to our new definition, 46 (78%) aneurysms were classified as complex. Most PED interventions were performed in the paraophthalmic and cavernous internal carotid artery segments. Excellent neurologic outcome (modified Rankin Scale 0 and 1) was observed in 94% of patients. Our data showed low permanent procedure-related mortality (0%) and morbidity (3%) rates. Long-term angiographic follow-up showed complete occlusion in 81% and near-total obliteration in a further 14%. Complete obliteration after deployment of a single PED was achieved in all standard aneurysms with 1-year follow-up. Our new scale was an independent predictor of aneurysm occlusion in a multivariable analysis. All aneurysms with a high flow disruption grade showed complete occlusion at follow-up regardless of PED number or aneurysm complexity. Conclusions: Treatment with the PED should be recognized as a primary management strategy for a highly selected cohort with predominantly complex intracranial aneurysms. We further show that a priori assessment of aneurysm complexity and our new postinterventional angiographic flow disruption scale predict occlusion probability and may help to determine the adequate number of per-aneurysm devices.","lang":"eng"}],"language":[{"iso":"eng"}],"author":[{"first_name":"Philippe","full_name":"Dodier, Philippe","last_name":"Dodier"},{"last_name":"Frischer","full_name":"Frischer, Josa","first_name":"Josa"},{"last_name":"Wang","full_name":"Wang, Wei","first_name":"Wei"},{"last_name":"Auzinger","id":"4718F954-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1546-3265","first_name":"Thomas","full_name":"Auzinger, Thomas"},{"last_name":"Mallouhi","first_name":"Ammar","full_name":"Mallouhi, Ammar"},{"full_name":"Serles, Wolfgang","first_name":"Wolfgang","last_name":"Serles"},{"full_name":"Gruber, Andreas","first_name":"Andreas","last_name":"Gruber"},{"full_name":"Knosp, Engelbert","first_name":"Engelbert","last_name":"Knosp"},{"full_name":"Bavinzski, Gerhard","first_name":"Gerhard","last_name":"Bavinzski"}],"date_published":"2018-05-01T00:00:00Z","oa_version":"None","_id":"398","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","page":"e568-e578","publisher":"Elsevier","article_processing_charge":"No","citation":{"short":"P. Dodier, J. Frischer, W. Wang, T. Auzinger, A. Mallouhi, W. Serles, A. Gruber, E. Knosp, G. Bavinzski, World Neurosurgery 13 (2018) e568–e578.","mla":"Dodier, Philippe, et al. “Immediate Flow Disruption as a Prognostic Factor after Flow Diverter Treatment Long Term Experience with the Pipeline Embolization Device.” <i>World Neurosurgery</i>, vol. 13, Elsevier, 2018, pp. e568–78, doi:<a href=\"https://doi.org/10.1016/j.wneu.2018.02.096\">10.1016/j.wneu.2018.02.096</a>.","ama":"Dodier P, Frischer J, Wang W, et al. Immediate flow disruption as a prognostic factor after flow diverter treatment long term experience with the pipeline embolization device. <i>World Neurosurgery</i>. 2018;13:e568-e578. doi:<a href=\"https://doi.org/10.1016/j.wneu.2018.02.096\">10.1016/j.wneu.2018.02.096</a>","ieee":"P. Dodier <i>et al.</i>, “Immediate flow disruption as a prognostic factor after flow diverter treatment long term experience with the pipeline embolization device,” <i>World Neurosurgery</i>, vol. 13. Elsevier, pp. e568–e578, 2018.","ista":"Dodier P, Frischer J, Wang W, Auzinger T, Mallouhi A, Serles W, Gruber A, Knosp E, Bavinzski G. 2018. Immediate flow disruption as a prognostic factor after flow diverter treatment long term experience with the pipeline embolization device. World Neurosurgery. 13, e568–e578.","chicago":"Dodier, Philippe, Josa Frischer, Wei Wang, Thomas Auzinger, Ammar Mallouhi, Wolfgang Serles, Andreas Gruber, Engelbert Knosp, and Gerhard Bavinzski. “Immediate Flow Disruption as a Prognostic Factor after Flow Diverter Treatment Long Term Experience with the Pipeline Embolization Device.” <i>World Neurosurgery</i>. Elsevier, 2018. <a href=\"https://doi.org/10.1016/j.wneu.2018.02.096\">https://doi.org/10.1016/j.wneu.2018.02.096</a>.","apa":"Dodier, P., Frischer, J., Wang, W., Auzinger, T., Mallouhi, A., Serles, W., … Bavinzski, G. (2018). Immediate flow disruption as a prognostic factor after flow diverter treatment long term experience with the pipeline embolization device. <i>World Neurosurgery</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.wneu.2018.02.096\">https://doi.org/10.1016/j.wneu.2018.02.096</a>"},"quality_controlled":"1","date_updated":"2023-09-11T14:12:33Z","status":"public","publist_id":"7431","title":"Immediate flow disruption as a prognostic factor after flow diverter treatment long term experience with the pipeline embolization device","external_id":{"isi":["000432942700070"]},"isi":1,"volume":13,"month":"05","publication_status":"published","year":"2018","date_created":"2018-12-11T11:46:15Z","intvolume":"        13"}]