Prediction of the fatigue behaviour of Metal Matrix Composites using a micro-macro approach

摘要

Using very heterogeneous materials in structuralparts submitted to cyclic loadings, leads us to present anelastoplastic micromechanical model. After some recalls on thehomogenisation principle based on a mean field theory, a non-linear kinematic and isotropic strain hardening is introduced inthe matrix. Validation is made on a Al-3.5percent Cu/SiCparticles and the ease of an A356/Al_2O_3 fibers is treated as afirst application.