article published yes Cécile Clavaud author 5f654c5d-04a1-11eb-ab36-ba9ffec58bd80000-0002-1843-3803 ScWa department Shear thickening is an intriguing rheological behaviour which consists in a brutal increase in the viscosity above a critical shear rate. It is famously encountered in suspensions of corn starch in water. Despite having been discovered in the early 1930's, its underlying mechanisms remained a mystery for a long time. In 2013–14, numerical and theoretical works [[1], [2], [3]] put forward a frictional transition scenario to explain this phenomenon. In this talk, I will present experimental work investigating this frictional transition scenario. In order to test the ideas of this model, one has to go further than standard rheological techniques, since they do not provide access to the frictional state of the measured suspension. I will thus focus on the techniques that we developed in order to evidence the frictional transition and link it to the presence of a shear-thickening behaviour. https://research-explorer.ista.ac.at/download/18606/18607/2022_ScienceTalks_Clavaud.pdf application/pdfno https://research-explorer.ista.ac.at/download/18606/18646/2024_ScienceTalk_Clavaud_Video.mp4 video/mp4no https://research-explorer.ista.ac.at/download/18606/18647/2024_ScienceTalk__Clavaud_QA.mp4 video/mp4no Elsevier2022 eng 2772-569310.1016/j.sctalk.2022.100038 3 C. Clavaud, Science Talks 3 (2022). Clavaud C. 2022. Shear thickening in dense suspensions: an experimental study. Science Talks. 3, 100038. Clavaud, Cécile. “Shear Thickening in Dense Suspensions: An Experimental Study.” <i>Science Talks</i>, vol. 3, 100038, Elsevier, 2022, doi:<a href="https://doi.org/10.1016/j.sctalk.2022.100038">10.1016/j.sctalk.2022.100038</a>. Clavaud, Cécile. “Shear Thickening in Dense Suspensions: An Experimental Study.” <i>Science Talks</i>. Elsevier, 2022. <a href="https://doi.org/10.1016/j.sctalk.2022.100038">https://doi.org/10.1016/j.sctalk.2022.100038</a>. C. Clavaud, “Shear thickening in dense suspensions: an experimental study,” <i>Science Talks</i>, vol. 3. Elsevier, 2022. Clavaud, C. (2022). Shear thickening in dense suspensions: an experimental study. <i>Science Talks</i>. Elsevier. <a href="https://doi.org/10.1016/j.sctalk.2022.100038">https://doi.org/10.1016/j.sctalk.2022.100038</a> Clavaud C. Shear thickening in dense suspensions: an experimental study. <i>Science Talks</i>. 2022;3. doi:<a href="https://doi.org/10.1016/j.sctalk.2022.100038">10.1016/j.sctalk.2022.100038</a> 186062024-12-01T23:01:55Z2024-12-11T09:24:57Z