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本文介绍以大时间增量方法求解金属板件冲压成形数值模拟的原理及实施方式。讨论了与之相关具有接触和摩擦几何非线性问题的描述方法，并给出二维问题的算例。
In this paper, the principle and implementation of numerical simulation of sheet metal stamping with large time incremental method are introduced. The description methods related to the geometric nonlinearity of contact and friction are discussed, and an example of two-dimensional problem is given.