中文摘要：

复合材料的力学响应数值计算对于多元多向异质体材料微结构的“性能导向型”设计、材料微结构失效的评估-9预测具有重要的意义．利用自主开发的材料微观组织结构仿真软件ProDesign构造出三维复合材料微结构的代表性体积单元，通过C语言、Python脚本混合编程的方式，实现对商业有限元软件ABAQUS前处理的二次开发，使之用于复合材料微结构几何模型的建立、材料属性与晶粒取向的赋值、边界条件的定义以及有限元网格的划分，从而有效地实现三维复合材料微结构的细观应力响应计算．

英文摘要：

The numerical computation of mechanical response of composite materials is of great significance for the ＂performance-oriented＂ design of multicomponent and heterogeneous material microstructure as well as the evaluation and prediction of microstructure failure. Using an independently developed simulation software ProDesign for the microstructure of materials, the ＂representative volume elements＂ of two-dimensional composite material microstructures were constructed. By using mixing programme of C programming with Python scripting language, the secondary development of commercial finite element software ABAQUS preprocessing was implemented for geometric model building of composite material microstructure, for assigning material attribution and grain orientation, for defining boundary condition, and for dividing finite element meshes, so that the numerical computation micromechanical response of two-dimensional polycrystalline material microstructure was effectively realized.