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采用厚曲壳大变形有限元方法，研究具有重要工业应用意义的方盒形件冲压胀形过程中的力学行为，并与实验结果进行比较，进而考察板材在冲压成形过程中弯曲效应的影响以及正确选择单元模式的必要性。
The large deformation finite element method of thick curved shell was used to study the mechanical behavior of the box-shaped parts with important industrial applications during stamping bulging. Compared with the experimental results, the influence of bending effect on the sheet metal during stamping was investigated. Necessity of choosing unit mode correctly.