中文摘要：

应用非协调多变量有限元法和均匀化理论,提出了三维编织复合材料力学分析的新方法,发展了非协调位移元和杂交应力元,模拟了三维编织复合材料的有效力学性能。与实验值相比,杂交应力元法的结果比文中提及的其他数值方法的结果好,并且对于典型的四步法编织复合材料给出了一些算例和应用。

英文摘要：

A new method for mechanical analysis of three-dimensionally braided composite material em- ploying incompatible multivariable FEM and homogenization theory is proposed. An incompatible displacement element and a hybrid stress element are developed to model the effective mechanical properties of three-dimensional （3-D） textile composites. Results of the hybrid stress element approach is favorable than other numerical methods widely used compared with the experimental data. Some illustrative applications are presented for a typical class of four-step braided composites.