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应用弹塑性增量理论，按Ｍｉｓｅｓ条件进行了Ａ３０４不锈钢试样平面应力裂纹稳定扩展的有限元模拟研究。初步计算结果显示了与实验数据良好的一致性，同时也表明随裂纹扩展量增大，Ｊ积分的路径依赖性明显增强。
Based on the theory of elastic-plastic increment, the finite element simulation of plane stress crack propagation of A304 stainless steel was carried out by Mises condition. The preliminary calculation results show good agreement with the experimental data, and also show that the path dependence of J-integral significantly increases with the increase of crack growth.