CONTINUUM MULTI-SCALE (FE2) MODELING OF MATERIAL FAILURE

M. CAICEDO; J. OLIVER,; A E. HUESPE; E. ROUBIN; J. HERNANDEZ

Barcelona

Congreso; 11th World Congress on Computational Mechanics (WCCM XI); 2014

IACM

Two-scale computational modelling of materials is a subject of increasing interest in computational mechanics. When dealing with materials displaying a spatially smooth behaviour there is some consensus, and some suitable mechanical approaches to the problem are available in the literature. For instance, the so-called FE2 methods, based on the hierarchical, bottom-up one-way coupled, description of the material using the finite element method in both scales, and computational homogenization procedures at the low scale, is nowadays one of the most popular approaches. At the heart of the direct computational homogenization procedure lies the notion of representative volume element (RVE) defined as the smallest possible region representative of the whole heterogeneous media on average.