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Flexural fatigue behavior of synthesized graphene/carbon-nanofiber/epoxy hybrid nanocomposites
Highlights Graphene sheets were synthesized based on new technique of changing magnetic field. The fatigue performance of graphene/CNF/epoxy hybrid nanocomposites is investigated. Hybrid nanocomposites subjected to displacement-controlled flexural fatigue loading. 37.3-Fold improvement in fatigue life observed at a strength ratio equal to 43%. A unique flexural fatigue measurement setup for nanocomposites was developed.
Abstract 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 0.5wt.% 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 0.25wt.% graphene or 0.25wt.% CNF into the resin. Experimental observations show that at a strength ratio equal to 43% by using 0.5wt.% 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.
Flexural fatigue behavior of synthesized graphene/carbon-nanofiber/epoxy hybrid nanocomposites
Highlights Graphene sheets were synthesized based on new technique of changing magnetic field. The fatigue performance of graphene/CNF/epoxy hybrid nanocomposites is investigated. Hybrid nanocomposites subjected to displacement-controlled flexural fatigue loading. 37.3-Fold improvement in fatigue life observed at a strength ratio equal to 43%. A unique flexural fatigue measurement setup for nanocomposites was developed.
Abstract 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 0.5wt.% 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 0.25wt.% graphene or 0.25wt.% CNF into the resin. Experimental observations show that at a strength ratio equal to 43% by using 0.5wt.% 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.
Flexural fatigue behavior of synthesized graphene/carbon-nanofiber/epoxy hybrid nanocomposites
Shokrieh, M.M. (author) / Esmkhani, M. (author) / Haghighatkhah, A.R. (author) / Zhao, Z. (author)
2014-05-08
8 pages
Article (Journal)
Electronic Resource
English
Flexural fatigue behavior of synthesized graphene/carbon-nanofiber/epoxy hybrid nanocomposites
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