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论文基于Mori-Tanaka理论,考虑了界面相对超磁致伸缩复合材料的有效性能的影响,得到了具有界面相的超磁致伸缩复合材料的有效性能的一般解析表达.考虑到固化过程中热残余应力对超磁致伸缩复合材料有效性能的影响,通过数值计算,给出超磁致伸缩复合材料有效弹性模量、有效磁致伸缩应变及有效热膨胀系数随夹杂物长径比、体分比、界面参数和固化热残余应力的变化特征曲线,数值结果表明:界面和固化热残余应力对于超磁致复合材料有效性能的影响是显著的.
Based on the Mori-Tanaka theory, the effective analytical expression of the properties of the giant magnetostrictive composites with interfacial phase is obtained by considering the influence of the interface relative to the effective properties of the giant magnetostrictive composites. Considering the thermal residual Through the numerical calculation, the effective elastic modulus, the effective magnetostrictive strain and the effective thermal expansion coefficient of the giant magnetostrictive composite are given with the ratio of the aspect ratio of inclusions to the volume fraction, The results show that the influence of interfacial and residual thermal stress on the effective properties of the magnetostrictive composites is remarkable.