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采用有限元模拟技术，研究了单向不连续碳纤维增强聚醚醚酮复合材料的细观弹塑性力学行为，分析了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。在有限元计算中，引入了一个单胞模型和相关的边界条件。此外，利用体积平均法预测了在外载荷作用下单向不连续碳纤维增强复合材料的弹塑性应力-应变关系。
The mesomechanical behavior of uniaxial continuous carbon fiber reinforced polyetheretherketone composites was studied by means of finite element simulation. The discontinuities at the ends of the fibers were analyzed for the interaction between the fibers and fibers, the fibers and the surrounding matrix Effects and changes in stress field. In the finite element calculation, a single cell model and the related boundary conditions are introduced. In addition, the elasto-plastic stress-strain relationship of unidirectional discontinuous carbon fiber reinforced composites under external loads was predicted by the volume average method.