ABAQUS的二次开发，主要是混凝土损伤材料模型的初步设计，具有很大的参考价值-ABAQUS secondary development, the preliminary design of the concrete damage material model has great reference value

abaqus中umat子程序，可计算混凝土塑性损伤-abaqus in umat subroutine calculate concrete plastic damage

清华大学研究生精品课程《钢筋混凝土有限元》教学程序 随动双线性硬化本构模型 -Tsinghua University Graduate Courses " reinforced concrete finite element" teaching program follower bilinear hardening constitutive model