关于有限变形非弹性有限单元法的研究进展

On the Research and Development of Finite Deformation In-elastic Finite Element Method

对有限变形非弹性有限单元法研究发展中的一些普遍关注的研究课题,进行了回顾和展望.这些课题包括:不同参考构形下的有限元列式、客观性应力率的合理定义、有限变形非弹性本构方程的精确描述、率本构方程的增量客观数值积分、塑性流动的不可压缩性与自锁现象、以及交界面接触与摩擦的处理.

This paper reviews some of the commonly concerned topics in the research and development of finite deformation in-elastic finite element method, which include finite element formulations using different reference configurations, various objective stress rates, finite deformation in-elastic constitutive equations, incrementally objective numerical integration of rate constitutive equation, incompressibility of plastic flow and locking phenomenon, and interfacial contact and friction.