▎ 摘　　要

In this research, the effect of adding graphene nanoplatelets on mechanical properties of epoxy resin under flexural bending stress in fatigue conditions was investigated. The fatigue tests of specimens were carried out under displacement-controlled bending loading at different displacement amplitudes at room temperature. Due to the addition of graphene nanoplatelets, a remarkable improvement in fatigue life of epoxy resin was observed. For instance, specimens comprising epoxy resin and 0.25wt.% of graphene fatigued at a stress ratio of 0.43 revealed a 27.4-fold improvement in fatigue life in comparison with the neat epoxy resin.