J. Phys. IV France
Volume 105, March 2003
Page(s) 123 - 130

J. Phys. IV France
105 (2003) 123
DOI: 10.1051/jp4:20030179

Simulation by periodic homogenization of the behavior of a polycrystalline material in large elastoplastic transformations

S. Elbououni1, 2, S. Bourgeois1, O. Débordes1 and A. Dogui2

1  Laboratoire de Mécanique et d'Acoustique & ESM2, Technopôle de Château Gombert, 13451 Marseille cedex 20, France
2  Laboratoire de Génie Mécanique, ENIM, 5019 Monastir, Tunisia

We present an approach based on periodic homogenization theory, in order to numerically study the anisotropy due to large elastic-plastic strains. This work presents a two levels finite element method to calculate an elastic-plastic polycristalline structure. The first level, at the scale of the structure, is classical, except that the constitutive material behavior in each integration point is numerically obtained by a second level of finite element calculations on a representative polycristalline basic cell made of several FCC single cristal with different orientations. A parallel numerical approach is also used.

© EDP Sciences 2003