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从晶体细观力学出发建立了金属基复合材料的本构模型，以Ａｌ－Ａｌ２Ｃｕ自生复合材料为模型材料，并依据各组元材料的单晶体变形－受载曲线，用数值法模拟计算了其拉伸变形过程，得到了与实验结果相符的应力－应变曲线，研究了变形过程中基体和增强相之间的应力分布规律、基体的滑移变形规律、以及相间间距和界面影响区的作用．结果表明，晶体细观力学方法用于金属基复合材料的分析和设计，能全面系统定量地细致反映组元材料性质和分布等因素对复合材料宏观力学性能及局部变形不均匀特性的影响．
The constitutive model of metal matrix composites was established from the crystal meso mechanics. The Al-Al2Cu self-composites were taken as the model materials. Based on the single crystal deformation-loading curve of each elemental material, Elongation and deformation process, the stress-strain curve is obtained in accordance with the experimental results. The stress distribution law between matrix and reinforcing phase, the slip deformation of matrix and the effect of interphase spacing and interface influence zone are studied. The results show that the crystal meso mechanics method is applied to the analysis and design of metal matrix composites, and can fully and systematically and quantitatively reflect the influence of the properties and distribution of the component materials on the macroscopic mechanical properties and the local nonuniformity of the composites.