标题：Flexural fatigue behavior of synthesized graphene/carbon-nanofiber/epoxy hybrid nanocomposites
作者：Shokrieh, M. M.; Esmkhani, M.; Haghighatkhah, A. R.; Zhao, Z.
作者机构：[Shokrieh, M. M.; Esmkhani, M.; Haghighatkhah, A. R.] Iran Univ Sci & Technol, Sch Mech Engn, Ctr Excellence Expt Solid Mech & Dynam, Composites Res L 更多
通讯作者地址：[Shokrieh, MM]Iran Univ Sci & Technol, Sch Mech Engn, Ctr Excellence Expt Solid Mech & Dynam, Composites Res Lab, Tehran 1684613114, Iran.
来源：MATERIALS & DESIGN
关键词：Flexural bending fatigue; Hybrid nanocomposites; Graphene nanosheet;; Carbon nanofiber
摘要：In the present research, effects of adding a combination of synthesized graphene nanosheets and carbon nanofibers (CNFs) on the flexural fatigue behavior of epoxy polymer have been investigated. Graphene nanosheets are synthesized based on a changing magnetic field. The flexural bending fatigue life of 0.5 wt.% of graphene/CNF/epoxy hybrid nanocomposites has been considered at room temperature. The samples were subjected to different displacement amplitudes fatigue loadings. Due to the addition of hybrid nanoparticles, a remarkable improvement in fatigue life of epoxy resin was observed in comparison with results obtained by adding 0.25 wt.% graphene or 0.25 wt.% CNF into the resin. Experimental observations show that at a strength ratio equal to 43% by using 0.5 wt.% of hybrid nanoparticles; 37.3-fold improvement in flexural bending fatigue life of the neat epoxy was observed. While, enhancement of adding only graphene or CNF was 27.4 and 24-fold, respectively. (C) 2014 Elsevier Ltd. All rights reserved.