Abstract
The aim of this study is to determine the effect of graphene nanoparticle (GNP) reinforcement on the mechanical properties of glass fiber reinforced polymer (GFRP), carbon fiber reinforced polymer (CFRP) and aramid fiber reinforced polymer (AFRP) composites commonly used in the space and defense industry. Accordingly, GFRP, CFRP and AFRP composites were produced by using hot pressing method. In addition, hybrid fiber composites were produced by adding 0.1 %, 0.2 % and 0.3 % GNP to these fiber reinforced composites. The tensile strength and modulus of elasticity of the composites were determined. The tensile damage fracture regions were analyzed by scanning electron microscopy (SEM) and energy distribution spectrum (EDS). It was observed that the addition of 0.2 wt. % GNP to GFRP and CFRP composites increased tensile strength and modulus of elasticity. However, the addition of 0.2 wt. % GNP to AFRP composites had no effect on the tensile strength; on the contrary, it partially reduced the tensile strength but increased the modulus of elasticity. On the fracture damage surfaces of the GFRP and CFRP composites and the GNP/GFRP and GNP/CFRP hybrid composites, the fibers were completely separated. On the damage surfaces of AFRP composite and GNP/AFRP hybrid composites, the fibers were deformed but these fibers were not separated from each other. From the EDS analysis, it was observed that the element C increased in the composites with the addition of GNP to the fiber reinforced composites.
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This research was financially supported by Batman University Scientific Research Projects Unit, through Research Grant BTÜBAP-2018-MMF-2, which is gratefully acknowledged.
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Tolga Topkaya graduated from Department of Mechanical Engineering at Fırat University at 2007. He gained his Ph.D. degree at the same university at 2017. He is working as Research Assistant at Department of Mechanical Engineering, University of Batman, since 2010. His main research fields are composites, biomechanics and adhesion and adhesives.
Yahya Hişman Çelik, born 1980, received his B.Sc., M.Sc. and Ph.D. degrees at Firat University, Elazığ, Turkey, in 2002, 2005 and 2010, respectively. He is Associate Professor at Batman University, Batman, Turkey. He has been doing research in the areas of manufacturing, construction, molding, composites, CAD/CAM and CNC.
Erol Kilickap received his B.Sc., M.Sc. and Ph.D. degrees in Mechanical Engineering from Firat University in Elazığ, Turkey, in 1991, 1997 and 2003, respectively. He is working as Professor at Dicle University, Diyarbakır, Turkey. His general area of interest includes machining of composites and metal cutting mechanics.
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Topkaya, T., Çelik, Y.H. & Kilickap, E. Mechanical properties of fiber/graphene epoxy hybrid composites. J Mech Sci Technol 34, 4589–4595 (2020). https://doi.org/10.1007/s12206-020-1016-4
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DOI: https://doi.org/10.1007/s12206-020-1016-4