材料科学与工程学报2011，Vol.29Issue(3)：400-404,5.
三维四步编织复合材料刚度和强度的数值模拟
Simulation on the Stiffness and Strength of Three dimensional Four-step Braided Composites
摘要
Abstract
To study the mechanical properties of four-step 3D braided composites, a basic cell model of braided composites was simulated by FEA software ANSYS. Macroscopic elastic constants of 3D braided composites were calculated, and the effects of the braiding angle and the fiber volume ratio on the elastic constants of the materials were discussed. Different criteria for the strength of yarns and the matrix were used to get the ratio of damaged element volume to the whole volume when the material failure occurs. According to the distribution of the damaged elements, the failure mechanism of braided composites was analyzed, and the tensile strength of the materials was predicted. The simulation results agree quite well with the experimental results.关键词
三维编织复合材料/有限元/刚度/强度Key words
3D braided composites/ finite element/ stiffness/ strength分类
通用工业技术引用本文复制引用
韩小进,孙慧玉..三维四步编织复合材料刚度和强度的数值模拟[J].材料科学与工程学报,2011,29(3):400-404,5.基金项目
国家自然科学基金资助项目(10972101),高等学校博士学科点专项科研基金资助项目(20070287026),江苏省自然科学基金资助项目(BK2007190),教育部留学回国人员科研启动基金资助课题 （10972101）
