This paper describes a method based on the generalized principle of virtual work to derive the hybrid model of finite element. An assumed-strain hybrid model was obtained.
本文提出用广义虚功原理的方法建立有限元的杂交模型，并具体导出了一种杂交应变模型。
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An virtual instrument of dynamic strain measurement and the designing procedure of the signal processing function were discussed in this paper.
For the simulation accuracy of springback problem in sheet metal forming, the effect of punch virtual velocity and sheet virtual density on the sheet strain energy was studied in this paper.