利用经纱脉络描述法解决了任意三维机织复合材料的结构表征问题;提出了单胞分解法与亚胞向量概念,实现了三维结构的二维化、数字化,根据数字表征结果和经典截面假设构造了初始断裂模型;使用一种迭代算法对初始断裂模型进行优化,使纱线束逐步逼近真实形态,进而实现三维实体造型,在此基础上进行网格剖分.研究结果表明,迭代算法能够使纱线形态趋于自然,使造型结果接近实际.数值分析结果表明,迭代算法中的经纬纱退让系数介于0.6～0.7之间时,迭代收敛速度最快.
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