T0101-3-5 Stochastic Microscopic Stress Analysis of a Particle Reinforced Composite Material Considering Microscopic Random Variations in an Elastic Property and Strength of Component Materials

Abstract

This paper discusses the fracture probability analysis of a particle reinforced composites. As random variables, elastic property and strength of a component material are considered. It is assumed that an elastic property of a component material is randomly distributed according to the normal distribution, and the strength distributes according to the Weibull distribution. The random variation of the microscopic stresses are computed using the perturbation-based multiscale stress analysis method. With the numerical results, influence of the random variation of an elastic property on fracture probability is discussed.