用力学子单元模型求解与时间有关的各向异性塑性问题 |
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引用本文: | 卞学鐄.用力学子单元模型求解与时间有关的各向异性塑性问题[J].应用数学和力学,1984,5(4):461-470. |
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作者姓名: | 卞学鐄 |
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作者单位: | 美国麻省理工学院 |
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摘 要: | 本文介绍了用力学子单元模型摹拟金属各向异性弹-塑性平面应力行为的做法,模型引用的纵向与横向应力-应变曲线,是用几个光滑的短线段来表达的;但为简化起见,把它们当作分段线性线段。模型已纳入粘塑性杂交应力有限元分析程序。
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收稿时间: | 1983-05-19 |
Time-Independent Anisotropic Plastic Behavior by Mechanical Subelement Models |
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Institution: | Massachusetts Institute of Technology, Cambridge, Mass., U.S.A. |
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Abstract: | The paper describes a procedure for modelling the aniso-tropic elastic-plastic behavior of metals in plane stress state by the mechanical sub-layer model. In this model the stress-strain curves along the longitudinal and transverse directions are represented by short smooth segments which are considered as piecewise linear for simplicity. The model is incorporated in a finite element analysis program which is based on the assumed stress hybrid element and the viscoplasticity theory. |
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