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采用ANSYS有限元法对含断裂纤维的SiC_f/Ti-6Al-4V复合材料纵向拉伸性能进行分析。结果表明,纤维体积分数越高,该复合材料抗拉强度越高,而相应的应变越低。但纤维体积分数的高低对该复合材料失效模式没有影响。界面剪切强度对该复合材料的抗拉强度和失效模式均有明显影响,低的界面剪切强度导致较低的抗拉强度和渐进的复合材料失效;高的界面剪切强度导致较高的抗拉强度和灾难性的复合材料失效。
The longitudinal tensile properties of SiC_f / Ti-6Al-4V composites with broken fibers were analyzed by ANSYS finite element method. The results show that the higher the fiber volume fraction, the higher the tensile strength of the composite, and the lower the corresponding strain. However, the fiber volume fraction had no effect on the composite failure mode. The interfacial shear strength has a significant effect on the tensile strength and failure mode of the composites. The low interfacial shear strength results in lower tensile strength and progressive composite failure; the higher interfacial shear strength results in higher Tensile strength and catastrophic composite failure.