（修正）剑桥模型排水条件下应力应变曲线作图全过程，有源程序-(Amendment) Cambridge model drainage conditions, the stress-strain curve plotted the whole process, the source code

摘自simwe论坛，umat和vuamt相互转换中应注意的应力应变关系-Taken simwe forum, umat and vuamt conversion should pay attention to the stress-strain relationship