Mechanics of heterogeneous media and homogenization

The focus here is on the behavior of heterogeneous media. The aim is to characterize the macroscopic behavior of these media at a scale (often the engineer's scale) where heterogeneities appear to be small. Research is mainly methodological, with the aim of developing the most general theories possible that can be applied to a wide range of materials. The challenge is to develop high-performance methods and numerical tools that can take into account the characteristics of heterogeneities (geometric distribution), for highly non-linear behavior of constituents (elasto-visco-plasticity, large deformations) with possible multiphysics (thermomechanical) couplings. Applications include metallic materials (particularly in the nuclear sector) and microarchitectured media (composites, media with periodic microstructures, etc.).