介绍了利用弹塑性有限元对金属冲裁加工模拟的基本原理，包括弹塑性大变形模拟、材料断裂破坏模拟以及网格重划分等技术利用商业化有限元程序DEFORM 2DTM对不锈钢(AISI 304)板料的冲裁工艺进行了模拟，模具采用刚体模型，工件采用弹塑性模型，材料断裂破坏采用Cockreft-Latham破坏准则.分机了冲裁过程中裂纹生成、扩展以及材料断裂分离的赤程，冲裁力的变化等，模拟结果中的材料断裂和冲裁力的变化与已发表文献中的实验结果一致
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