Stochastic analysis of coupled nonlinear thermo-mechanical problems : SFEM model

Dealing with the modelling of brittle and quasi-brittle materials requires to be able to take into account of some special features of such materials, among them is the so-called size-effect. This effect leads to an important uncertainty about the yield or maximum stress in a structure, depending on its size.Moreover this effect is mostly due to the heterogeneity of these materials, at a microscopic scale.