Estimating RVE sizes for 2D/3D viscoplastic composite materials

The computational methods used in this work introduce explicitely the 2D/3D morphology of the considered random heterogeneous materials. A generic representation of the microstructure of random materials is chosen, namely the so–called Voronöı mosaics. The finite element method is chosen for the 2D/3D computations presented in this work. The corresponding parameters used in the finite element simulations of the creep behavior of a two–phase aggregate are given: mesh size, constitutive equations of the constituents and boundary conditions.