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摘要因为三维编织复合材料结构复杂，所以分析起来更加困难。因此笔者发明了一种新型有限元方法来预测三维编织复合材料在三维机械载荷下的有效模量和局部应力。为了验证本方法，将本方法中预测的无损的三维编织复合材料的性能进与以前的方法相比。下面将举例说明。
2003 Elsevier公司保留所有权利。
关键词：三维编织复合材料；有限元法；力学性能；开裂
1. 介绍
纤维增强复合材料具有优良的力学性能如高强度、论文网高刚度等。特别是层状复合结构已被广泛应用在需要很好的面属性的情况下。然而，层状复合材料在厚度方向上机械性能较差并且易产生层间剥离。为了克服这个困难，在过去的20年间，三维编织复合材料得到了快速发展。这种材料具有较好的外平面刚度、强度和抗冲击性能。因此在在航空航天，汽车和船舶工业有广阔的应用前景。由于三维编织复合材料的应用越来越广泛，许多模型已经被开发来分析其力学性能。因为其复杂的结构，这些分析是非常具有挑战性的。