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采用有限元法建立了有关的单胞模型和相关的边界条件。着重研究了复合材料的结构参数与单向不连续碳纤维增强聚醚醚酮（ＣＦ／ＰＥＥＫ）复合材料的细观弹塑性应力应变的关系，分析了纤维重叠比、纤维端部的不连续性对复合材料中纤维与纤维、纤维与周围基体相互作用以及应力场变化的影响。此外利用体积平均法预测了在外载荷作用下不同结构参数的单向不连续碳纤维增强复合材料的弹塑性应力－应变关系。
Using the finite element method to establish the relevant cell model and the associated boundary conditions. The relationship between the structural parameters of the composites and the mesoscopic elasto-plastic stress-strain of CF / PEEK composites was studied emphatically. The ratio of fiber overlap ratio, the discontinuity of fiber ends The interaction between fiber and fiber in fiber, fiber and surrounding matrix and the change of stress field. In addition, the elasto-plastic stress-strain relationship of unidirectional continuous carbon fiber reinforced composites with different structural parameters under different external loads was predicted by the volume average method.