Thermal residual stresses in particulate composites and its toughening effect

In this paper, an accurate formula for calculating the thermal residual stress field in a particle-reinforced composite are presented. Numerical examples are given to show r-variations of the thermal residual stresses. The increase in fracture toughness of matrix predicted by the thermal residual stress field is compared well with the experimentally measured increase. This work was supported by the National Natural Science Foundation of China (No.50172053).