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对ＳｉＣ纤维增强铝基复合材料经不同周次循环变形载荷后强度与塑性的测试表明．循环变形可使其强度、塑性均有所提高．经循环变形载荷作用１０周次、抗拉强度提高２０％；作用１００周次．强度提高３０％．塑性也有类似的变化．这一现象与传统疲劳损伤理论不一致．通过对基体材料、ＳｉＣ纤维体以及复合材料板的各自独立循环变形实验可知、这一现象同循环变形过程中纤维与基体的界面结合强度适度降低有关，这种降低有助于复合材料的强度与塑性的配合．
The tests of strength and ductility of SiC fiber reinforced aluminum matrix composites after different cycles of cyclic deformation load show. Cyclic deformation can make its strength, plastic have improved. Cyclic deformation load by 10 weeks, the tensile strength increased by 20%; role of 100 weeks. Strength increased by 30%. Plastic also has similar changes. This phenomenon is inconsistent with the traditional theory of fatigue damage. Through the independent cycle deformation experiments on the substrate, SiC fiber and composite plate, we can see that this phenomenon is related to the moderate decrease of the bonding strength between the fiber and the matrix during the cyclic deformation. This decrease contributes to the strength of the composite Plastic with.