【摘要】 编制了裂纹扩展下的 J积分二维有限元计算程序 ,对受拉单 (双 )裂纹中心裂纹板启裂、稳定扩展直至失稳的全过程进行计算机模拟 ,并且对其失效特征与规律进行了初步探讨。采用实验数据对该程序进行了验证更多还原

【Abstract】 FEM Program on multi crack propagation is exploited, and J integral is calculated. The overall process from initiation, then propagation, to instantaneous fracture is simulated.The behavior and regularity of single and double cracked plats during propagation are studied. The program is verified with experimental datas.更多还原