Author(s)

A.A. Mammoli & M.B. Bush

Abstract

Three dimensional elastoplastic modelling of ceramic reinforced metal matrix composites using the boundary element method A.A. Mammoli, M.B. Bush Department of Mechanical and Materials Engineering, The University of Western Australia, Nedlands 6009, Western Australia ABSTRACT The mechanical properties of Al-SiC composites are investigated using a fully three-dimensional elastoplastic boundary element code. The matrix is allowed to deform plastically, while the ceramic reinforcement is assumed to remain elastic. The plastic behaviour of the matrix is arbitrary. A perfectly plastic matrix and a strain hardening matrix are used here. The three dimensional code allows the simulation of any reinforcement shape and position, unlike the commonly used axisymmetric and planar models. In most cases Al-SiC composites are produced at high temperatures, and during cooling they are subjected to thermal residual stresses caused by the large difference in thermal expansion coeffici

Keywords