hardening rule

By leading into the corresponding hardening criterion of the partial stress plane,the damping ratio-based hysteretic model is extended to the elasto-plastic field,and a new damping ratio-based bounding surface model is constituted.

在基于阻尼的滞回模型的基础上,通过在应力偏平面上引入相应的硬化准则,将其推广至弹塑性领域,建立了基于阻尼的边界面模型。