平面问题等参单元的有限元程序设计，平面弹性力学问题的三结点三角形有限单元法。考虑集中力、静水压力、法向面力和自重体力。-This is finite element programming of isoparametric element on plane problem, it solves the three-node quadrilateral plane elasticity problems using finite element method. It calculates the

四节点等参元源代码，该程序可解决弹性力学的的平面应变问题,能够计算集中离、静水压力、法向面力和自重力的作用。-The program can solve the elasticity of the plane strain can be calculated the centralized role of hydrostatic pressure, normal surface force and self-gravity.

弹粘塑性本构模型出发，考虑混凝土材料的损伤，推导提出混凝土弹粘塑性损伤本构模型，适用性强大。本模型能够反映出材料不同的拉压性能、材料的应变率敏感性、静水压力及中间主应力的影响，具有一定的实用价值。-Based on the constitutive model of the elastic viscoplastic constitutive model, the damage of concrete materials is considered, and the constitutive mo