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采用有限元方法分析哑铃状短纤维及平直短纤维增强复合材料，重点探讨界面剪切强度对两种材料模型增强效果的影响，对哑铃状材料模型的适用性进行了研究数值计算中将材料看作理想弹塑性体，沿界面划出一薄层界面单元，从而引入了界面性能的影响通过对钢丝／锡材料的分析可以看出，界面剪切性能对两种材料模型的增强效果有很大影响，特别是在弱界面情况下采用哑铃状短纤维模型可大大提高增强效果．
Finite element analysis of dumbbell-shaped staple fibers and flat staple fiber reinforced composite materials, focusing on the interface shear strength of the two material model to enhance the effect of dumbbell-shaped material model applicability of numerical calculations will be material As an ideal elastic-plastic body, a thin layer of interface elements is drawn along the interface, which introduces the influence of the interface performance. The analysis of the wire / tin material shows that the interfacial shear behavior has a significant effect on both material models Large effect, especially in the case of weak interface dumbbell-shaped short fiber model can greatly enhance the effect.