利用有限元方法模拟时，韧性断裂准则既可以应用到完全耦合的弹塑性损伤模型的增量方法中，也可以应用到一步有限元逆算法中。
When adopting FEA to model, DFC could not only apply into incremental approach with a fully coupled elastic and plastic damage model, but to one step inverse approach.
建立J - A_2双参数断裂准则，对不同裂纹深度的管道进行弹塑性断裂预测。
According to the fracture rule with two parameters J and A_2, the fracture press values of some cracked inner-pressed-pipelines were forecasted.
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