Three-dimensional characterization of strain localization bands in high-resolution elastoplastic polycrystals

Fabrice Barbe (1, 2) , Romain Quey (3) , Andrey Musienko (4) , Georges Cailletaud (2)

1 GPM - Groupe de physique des matériaux
2 CDM - Centre des Matériaux
3 PECM-ENSMSE - Plasticité, Endommagement et Corrosion des Matériaux
4 State polytechnical university

In crystalline materials, the experimental observation of the localization of plastic strains in particular directions is generally restricted to the surface of a sample containing some hundreds of grains, because of the difficulties underlying microstructural analysis. In these conditions, the determination of the morphological characteristics of localization can be limited by the poor statistical representativity of the domain of observation. The purpose of this work is to extend the analysis of localization – localization bands or else – to the 3D elastoplastic strain fields of a high-resolution representative volume element of a polycrystal.

Mots clés: Strain localization; Crystal plasticity; 3D polycrystal; Finite elements

Domaines: Matériaux

Fabrice Barbe, Romain Quey, Andrey Musienko, Georges Cailletaud. Three-dimensional characterization of strain localization bands in high-resolution elastoplastic polycrystals. Mechanics Research Communications, 2009, 36, pp.762-768. ⟨10.1016/j.mechrescom.2009.06.002⟩. ⟨hal-00423757⟩