蒙特卡罗法生成混凝土随机骨料模型的ANSYS实现

利用ANSYS的APDL参数化设计语言，结合蒙特卡罗方法生成了细观层次上三级配的二维和三维随机混凝土骨料模型，从而能在ANSYS中进行赋予材料属性、定义单元类型、划分有限单元网格、选择各种损伤模型，直至加载求解，避免了其他程序语言生成骨料模型之后，还必须编写接口程序的不足；从给出的模拟卵石、砾石的三级配二维圆形和三级配三维球形的算例及生成的混凝土随机骨料模型来看，该法能够充分体现混凝土骨料随机分布的特征。

Monte-Carlo Method Aggregate Random Structures for Concretes by ANSYS

In this paper, ANSYS parametric design language and Monte-Carlo method were used to aggregate meso-level three-graded 2D and 3D random structure of concrete, so as to more conveniently attribute material properties, define element types, mesh finite element grids,choose damage evolution modals, load and solute, and the problem of transport of random structure of concrete aggregated by other program languages is avoided. The example of simulating the three-graded 2Dand 3D gravel model can sufficiently manifest the character of random structure for concrete.