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采用弹塑性有限元方法对金属平面横向挤压变形进行了理论计算,分析了变形体内部塑性区的扩展情况、等效应变及模具表面接触应力分布。并采用密栅云纹法进行了实验验证。
The elastic-plastic finite element method is used to calculate the transverse extrusion deformation of the metal plane. The expansion of the plastic zone, the equivalent strain and the contact stress distribution on the mold surface are analyzed. And the use of dense grille moire method to verify the experiment.