用力学子单元模型求解与时间有关的各向异性塑性问题

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

卞学鐄

美国麻省理工学院

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出版历程
- 收稿日期: 1983-05-19
- 刊出日期: 1984-08-15

Time-Independent Anisotropic Plastic Behavior by Mechanical Subelement Models

Theodore H. H. Pian

Massachusetts Institute of Technology, Cambridge, Mass., U.S.A.

摘要

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。

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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参考文献(12)

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