关键词: 仿真, 晶体取向, 微结构, 有限元法

Abstract: To study the mechanical properties of polycrystalline material components by “macro-meso-cross-scale” linking technique, “macro-simulation” and “meso-simulation” combinatorial project is designed. Based on the Voronoi incremental out-of-core algorithm, simulation software ProDesign is developed. By way of C program development and OpenGL graphics package drawings, the visual simulation of 3D polycrystalline materials is implemented. On this basis, cross-scale state inheritance from macro-mechanics state to meso-mechanics state and finite element numerical analysis of polycrystalline materials are realized by means of multi-computer-language programming compiling codes and the secondary development of the commercial finite element software ABAQUS. Numerical calculation is carried out for microstructures with same geometric structure but different crystal orientation distribution rule, the results of the calculation can be used to analyze the influence of crystal orientation distribution rule on “material structure weakness”, and can direct the design of macroscopical polycrystalline material components.

Key words: Crystal orientation, Finite element method, Microstructure, Simulation