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针对C/SiC轻质复合材料结构,将三维编织C/SiC复合材料看作是组分材料的空间结构物,由有序的细观结构单胞叠合而成.采用细观结构单胞作为离散单元对三维编织复合材料结构进行宏观网格剖分,利用有限元方法研究复合材料悬臂板动态特性.计算结果与理论值符合较好.
For the C / SiC lightweight composite structure, the three-dimensional braided C / SiC composites are regarded as the spatial structure of the component materials and are composed of ordered mesostructured single cells. Discrete element is used to mesh the three-dimensional braided composite structure macroscopically, and the dynamic behavior of the cantilever plate is studied by the finite element method. The calculated results are in good agreement with the theoretical values.