MIPS Conference No. 4 – Material Behavior: Dissipative Effects and Thermomechanical Couplings

The Research Cluster’s conferences aim to raise awareness within the community about new topics and technological innovations.Intended for a broad audience—students and researchers from all disciplines—they highlight the multidisciplinary expertise of the MIPS Research Cluster, partner clusters and organizations, as well as national and international teams. They are held on the first Friday of every month at 11:30 a.m. and are followed by a buffet, providing an opportunity to continue the discussion.

Material behavior: dissipative effects and thermomechanical couplings

The MIPS Cluster is pleased to welcome André Chrysochoos, a researcher at the LMGC, for a lecture on the interactions between material deformation and associated thermal variations.When a material deforms, it often undergoes temperature variations resulting from dissipative mechanisms (viscoplasticity, damage, cyclic fatigue, etc.) or from interactions between its mechanical, thermal, and microstructural states. Long neglected, these thermal variations nevertheless play a key role in material behavior and the modeling of their evolution.Through practical experiments, numerical simulations, and experimental results, this lecture will illustrate the effects of dissipation and thermomechanical coupling, as well as the techniques used to measure these phenomena. The presentation will conclude with an overview of a comprehensive thermomechanical framework, essential for the development of reliable behavior models that integrate both mechanical and energy aspects.