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对三维四向编织复合材料的参数化建模技术进行了研究 ,提出了一种“米”字型枝状体胞的计算模型 ,较为真实地模拟了该材料的细观结构 ;在此基础上讨论了相应的边界条件和约束条件并应用有限元方法计算了该材料的纵向、横向弹性模量 .通过与实验结果的对比可见 ,计算结果的预报精度较好
The parametric modeling technique of three-dimensional four-directional braided composites was studied and a computational model of “m” shaped dendritic cells was proposed to simulate the mesostructure of the material. On this basis The corresponding boundary conditions and constraints are discussed, and the longitudinal and transverse elastic moduli of the material are calculated by finite element method.Comparing with the experimental results, the prediction accuracy of the calculation results is better