Thermal residual stress and stress distribution under tensile and compressive loading of short fiber reinforced metallic matrix composite

The thermal residual stress and stress distribution of short fiber reinforced metallic matrix composite under tensile and compressive loading were studied by large strain axisymmetric elastoplastic finite element method. It was demonstrated that the thermal residual stress can result in asymmetrical stress distribution and matrix plasticity. The thermal residual stress can reduce the stress transfer in tension and enhance the stress transfer in compression. The fiber volume fraction has more important effects on the thermal residual stress and stress distribution under tensile and compressive loading than the fiber aspect ratio and the fiber end distance.