Dynamic Crack Propagation by Boundary Element Method

A time-domain boundary element method was applied to simulate the fast crack propagating process under dynamic loading.The crack-growth direction was determined by the maximum circumferential stress criterion.The instantaneous crack-tip velocity was approached by a bisection technique.New elements of inconstant length were added to the moving crack-tip to simulate the crack propagation.The simulation was analyzed and compared to the corresponding experimental and numerical results.