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针对三维多向编织复合材料 ,在已建立的单胞几何模型及材料力学性能细观计算力学分析方法的基础上 ,引入 Murakam i的几何损伤理论模拟纤维束的细观损伤行为 ,建立了预报该类材料非线性本构行为数值模拟及细观损伤机理的有限元分析方法。结合实例预报了碳 /环氧四向编织复合材料本构的非线性行为 ,并与实验结果进行了对比
Based on the established single-cell geometric model and meso-mechanics analysis method of mechanical properties of materials, the geometrical damage theory of Murakam i was used to simulate the meso-damage behavior of fiber bundles. Nonlinear Constitutive Behavior of Quasi-like Materials and Finite Element Analysis of Meso-Damage Mechanism. The nonlinear behavior of the carbon / epoxy four-directional braided composites was predicted with examples and compared with the experimental results