利用ABAQUS中的用户自定义材料子程序UMAT开发的三维邓肯-张模型，应力积分算法采用的是基本增量法-In the use of ABAQUS user-defined material subroutine UMAT developed three-dimensional Duncan- model, stress integration algorithm is the basic incremental method

一个利用ABAQUS的用户子程序UMAT开发的采用线性随动硬化符合Mises屈服准则的本构模型。-A use ABAQUS user subroutine UMAT developed linear kinematic hardening in line with Mises yield criterion constitutive model.