三维四向编织复合材料剪切性能的数值预报

1.北京航空航天大学,固体所,北京,100083

2.北京航空航天大学,固体所,北京,100083

3.北京航空航天大学,固体所,北京,100083

4.北京航空航天大学,固体所,北京,100083

5.北京材料工艺研究所,北京,100076

NUMERICAL PREDICTION OF THE LONGITUDINAL AND TRANSVERSAL MODULI OF THREE DIMENSIONAL AND 4-STEP BRAIDED COMPOSITES

应用三维四向编织复合材料的参数化建模技术,在"米"字型枝状体胞计算模型基础上,讨论了该材料在剪切变形中体胞的边界条件,较为真实地模拟了该材料的细观结构,进一步对该材料的剪切模量进行了数值预报;最后通过结果的分析,总结了剪切模量随不同编织角及纤维体积含量的变化关系.

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