本文用有限元方法分析了一定初缺陷杆受轴向冲击的弹塑性动态屈曲。
Using the finite element method, the dynamic buckling of a bar with finite initial imperfection under axial impact is analyzed in this paper.
本文介绍用有限元估算弹塑性动态j积分值的方法。
This paper presents a method for estimating the elastic-plastic dynamic J integral value by finite element analysis.
利用大型非线性有限元MARC ，对某自动迫击炮浮动炮闩闭气结构，进行了三维装配体有限元建模和动态弹塑性分析，获得了关键闭气构件的应力、塑性应变和变形的动态响应。
D assembly FE modeling and dynamic elastoplastic analysis are carried out for the obturator structure of a floating gun breech mechanism by using nonlinear finite element code MSC MARC.
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