Stochastic framework for modeling the linear apparent behavior of complex materials: Application to random porous materials with interphases

摘要

This paper is concerned with the modeling of randomness in multiscale analysis of heterogeneous materials.More specifically,a framework dedicated to the stochastic modeling of random properties is first introduced.A probabilistic model for matrix-valued second-order random fields with symmetry propertries,recently proposed in the literature,is further reviewed.Algorithms adapted to the Monte Carlo simulation of the proposed representation are also provided.The derivations and calibration procedure are finally exemplified through the modeling of the apparent properties associated with an elastic porous microstructure containing stochastic interphases.