摘要
本文导出了比较普遍适用的弹塑性流动法则及本构方程,可以考虑应力应变模式的非线性性及其在弹性阶段和塑性阶段的非连续性;推出了正交流动法则成立的条件,并导出了塑性应变增量偏离正交方向的角度表达式以及判断变形处于硬化、软化还是理想塑性状态的计算关系式。
This paper derives the general relationship on elastoplastic flow rule and Constitutive equations, which can take account of the uncontinuity in elastic and plastic regions and the nonlinearity of stress-strain response. Moreover, the normality conditions, the angle calculating formulation between the plastic strain increment vector and normal to loading surface, and the deformation state function used to decide deformation hardening, sottening or ideal behavior are developed,
出处
《宁夏大学学报（自然科学版）》
CAS
1990年第1期28-37,共10页
Journal of Ningxia University(Natural Science Edition)
关键词
弹塑性
流动法则
本构方程
Loading rule, Flow rule, Constitutive equation, Normalily condition, Deformation state function.
