abaqus 弹塑性本构的编程与实现，无限元模型的建立与实现，算例(The programming and implementation of ABAQUS elastoplastic constitutive model, the establishment and implementation of infinite element model, an example)

ABAQUS是一款可以自定义材料属性的软件，本文档介绍了怎么在子程序中实现弹塑性本构。(ABAQUS is a kind of software that can customize material properties. This document describes how to realize elastic-plastic constitutive in subroutines.)