abaqus可用的用户子程序，可以考虑混凝土弹性模量随时间，应力变化等情况下的徐变。可以考虑徐变恢复。-creep of concrete

用Python脚本实现abaqus 材料参数中的弹性模量随坐标变化。(With Python scr ipt, the elastic modulus of ABAQUS material parameters varies with coordinates.)

使用umat计算蔡吴失效准则，计算失效指数If，弹性模量和强度参数见表3.1.(Compute the Tsai-Wu failure index IF on each layer of Example 3.8 (p. 151) using a UMAT subroutine, available in umatS8R5.for. The elastic moduli and strength values for the lamina are given in Table 3.1)