基于ABAQUS二次开发平台，编制Mises弹塑性模型的UMAT子程序。-Based on the secondary development platform of ABAQUS, prepare the UMAT subroutine of Mises elastic-plastic model.

ABAQUS软件用户材料子程序-VUMAT,对ZWT模型进行二次开发，采用Fortran语言编程。-abaqus software user subroutine UMAT, ZWT constitutive model for secondary development.

ABAQUS材料本构的二次开发讲解，详细说明。(Introduction to the secondary development of ABAQUS material constitutions.)