article published Eder Miguel author Rasmus Tamstorf author Derek Bradley author Sara Schvartzman author Bernhard Thomaszewski author Bernd Bickel author 49876194-F248-11E8-B48F-1D18A9856A870000-0001-6511-9385 Wojciech Matusik author Steve Marschner author Miguel Otaduy author Force-deformation measurements of cloth exhibit significant hysteresis, and many researchers have identified internal friction as the source of this effect. However, it has not been incorporated into computer animation models of cloth. In this paper, we propose a model of internal friction based on an augmented reparameterization of Dahl's model, and we show that this model provides a good match to several important features of cloth hysteresis even with a minimal set of parameters. We also propose novel parameter estimation procedures that are based on simple and inexpensive setups and need only sparse data, as opposed to the complex hardware and dense data acquisition of previous methods. Finally, we provide an algorithm for the efficient simulation of internal friction, and we demonstrate it on simulation examples that show disparate behavior with and without internal friction. ACM2013 10.1145/2508363.2508389 326 yes Miguel E, Tamstorf R, Bradley D, Schvartzman S, Thomaszewski B, Bickel B, Matusik W, Marschner S, Otaduy M. 2013. Modeling and estimation of internal friction in cloth. ACM Transactions on Graphics. 32(6). E. Miguel <i>et al.</i>, “Modeling and estimation of internal friction in cloth,” <i>ACM Transactions on Graphics</i>, vol. 32, no. 6. ACM, 2013. Miguel, Eder, Rasmus Tamstorf, Derek Bradley, Sara Schvartzman, Bernhard Thomaszewski, Bernd Bickel, Wojciech Matusik, Steve Marschner, and Miguel Otaduy. “Modeling and Estimation of Internal Friction in Cloth.” <i>ACM Transactions on Graphics</i>. ACM, 2013. <a href="https://doi.org/10.1145/2508363.2508389 ">https://doi.org/10.1145/2508363.2508389 </a>. Miguel E, Tamstorf R, Bradley D, et al. Modeling and estimation of internal friction in cloth. <i>ACM Transactions on Graphics</i>. 2013;32(6). doi:<a href="https://doi.org/10.1145/2508363.2508389 ">10.1145/2508363.2508389 </a> Miguel, Eder, et al. “Modeling and Estimation of Internal Friction in Cloth.” <i>ACM Transactions on Graphics</i>, vol. 32, no. 6, ACM, 2013, doi:<a href="https://doi.org/10.1145/2508363.2508389 ">10.1145/2508363.2508389 </a>. E. Miguel, R. Tamstorf, D. Bradley, S. Schvartzman, B. Thomaszewski, B. Bickel, W. Matusik, S. Marschner, M. Otaduy, ACM Transactions on Graphics 32 (2013). Miguel, E., Tamstorf, R., Bradley, D., Schvartzman, S., Thomaszewski, B., Bickel, B., … Otaduy, M. (2013). Modeling and estimation of internal friction in cloth. <i>ACM Transactions on Graphics</i>. ACM. <a href="https://doi.org/10.1145/2508363.2508389 ">https://doi.org/10.1145/2508363.2508389 </a> 21122018-12-11T11:55:47Z2021-01-12T06:55:23Z