摘要: In this paper, XFEM along with interaction integral formulation has been implemented on a four-point bend specimen to extract field intensity factors (K_Ⅰ, K_Ⅳ ) and mechanical energy release rate G_m. Crack propagation will ini... 展开 In this paper, XFEM along with interaction integral formulation has been implemented on a four-point bend specimen to extract field intensity factors (K_Ⅰ, K_Ⅳ ) and mechanical energy release rate G_m. Crack propagation will initiate when this energy release rate reaches a specific value. The effect of variation of crack length, mechanical load, and electrical load on mechanical energy release rate has been studied for the four-point bend specimen. 收起