本文介绍一种预测四步法三维编织复合材料弹性性能的方法提出了一种细观力学分析模型，并根据应变能等效原理，采用有限单元法作了分析复合材料的弹性模量和泊松比被表达为纤维和基体的弹性性能、纤维体积比、编织角等的函数对理论计算值和实验数据作了比较图４，表１，参８ In this paper, a method to predict the elastic properties of three-dimensional braided composites with four-step method is introduced. A micromechanical analysis model is proposed. According to the principle of strain energy equivalence, the finite element method Songbi is expressed as a function of the elastic properties of the fiber and the matrix, the volume ratio of the fibers, the braid angle, etc. The theoretical calculations and experimental data are compared  Figure 4, Table 1, Reference 8