混凝土结构破坏过程的离散单元法模拟

介绍了适于混凝土材料的离散单元模型的破坏准则、计算方程以及弹簧系数等计算参数的确定方法.对在强制位移作用下的混凝土板变形及破坏过程进行了数值模拟和动画显示,并对钢筋混凝土梁在不同剪跨比情况下的破坏形态进行了模拟分析.算例与分析结果表明,离散单元法是模拟混凝土结构破坏的一种有效分析方法.

Failure process simulation of concrete structures by discrete element method

The failure criterion, formula and determination of analytical parameters such as spring modulus of the discrete element model for concrete material were presented. The deformation and damage process of a concrete plate under forcible loading were simulated and displayed, and the different failure configurations of the reinforced concrete beams with different ratios of shear to span were also simulated. The results show that the discrete element method is an effective approach for simulating the damage process of concrete structures.