本文对SMA纤维复合材料的轴向超弹性滞回特性进行理论分析,首先采用三相同心圆柱体模型和多胞模型计算材料的宏细观力学性能及其纤维轴向应力应变响应曲线. 超弹性滞回特性的数值计算则采用平均抛物线插值法, 最后给出环氧树脂/Ni-44.8wt%Ti纤维复合材料的具体数值结果.%Theoretical analysis and numerical approach weregiven for the longitudinal superelastic hysteretic properties ofcomposite with SMA fibers in this paper. A concentric three-phasecylinder model and multicell micromechanics mothod were used to predictequivalent properties of SM composite and longitudinal response of SMAfiber composite. An average parabolic interpolation approach was utilizedfor the numerical integration related to equations (10) and (11).The numerical results for an Ni-44.8wt% Ti/epoxy composite werepresented.
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