UMAT, FOR ABAQUS/STANDARD INCORPORATING ELASTIC-PLASTIC LINEAR ISOTROPIC HARDENING. LARGE DEFORMATION FORMULATION FOR PLANE STRAIN AND AXI-SYMMETRIC ELEMENTS. IMPLICIT INTEGRATION WITH CONSISTENT JACOBIAN-UMAT, FOR ABAQUS/STANDARD INCORPORATING ELAST

这段代码应用于使用MATLAB通过弹性时程分析法计算地震波的地震反应谱-this code is used for calculating the spectrum of earthquake wave by elastic time history analysis