基于两个耦合内硬化变量的非线性硬化模型：公式化和实现
A non-linear hardening model based on two coupled internal hardening variables: formulation and implementation
摘要：
本文提出了一个应变型耦合强化变量的弹塑性本构模型。在广义结合论的理论框架下，该模型的建立是基于引入两个硬化变量的耦合演化。即使对应的硬化规则是线性的，应力-加工硬化演化也是非线性的。数值实现的标准返回映射算法进行了讨论，并在单变量的情况下，循环行为的一些数值模拟。
英文摘要：
An elasto-plasticity model with coupled hardening variables of strain type is presented. In the theoretical framework of generalized associativity, the formulation of this model is based on the introduction of two hardening variables with a coupled evolution. Even if the corresponding hardening rules are linear, the stress-strain hardening evolution is non-linear. The numerical implementation by a standard return mapping algorithm is discussed and some numerical simulations of cyclic behaviour in the univariate case are presented.
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