基于文献［１］提出的变形模型和获得的应力分析结果，推导出了短纤维增强金属基复合材料弹性模量和屈服强度理论表达式。表达式预测的结果与实验结果吻合很好，并与Ｅｓｈｅｌｂｙ 模型及有限元数值模型预测结果表现出很好的一致。分析表明，复合材料的弹性模量和屈服强度相对于基体材料弹性模量和屈服强度的增加主要来自应力传递的贡献。 Based on the deformation model proposed in [1] and the stress analysis results obtained, theoretical expressions of elastic modulus and yield strength of short fiber reinforced metal matrix composites were deduced. The results of the expression prediction are in good agreement with the experimental results and show a good agreement with the prediction results of the Eshelby model and the finite element numerical model. The analysis shows that the increase of the elastic modulus and yield strength of the composite material with respect to the elastic modulus and yield strength of the matrix material mainly comes from the contribution of stress transfer.