通过建立解析模型分析了蠕变过程中碳化硅纤维增强金属基复合材料各组分的应力和应变。结果表明,在常应变条件下,纤维承受的应力大小与外加载荷和残余应力有关,与蠕变时间无关;在常应力条件下,随时间延长,因为基体应力松弛,纤维承受的应力不断增加,且纤维体积分数一定时其承受的应力最大值仅取决于外加载荷。 The stress and strain of each component of silicon carbide fiber reinforced metal matrix composites were analyzed by establishing analytical model. The results show that under normal strain conditions, the stress on the fiber is related to the applied load and residual stress, but not to the creep time. Under the normal stress condition, with the extension of time, the stress on the fiber increases continuously due to the stress relaxation of the matrix, When the fiber volume fraction is constant, the maximum stress it can bear depends only on the applied load.