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Graphene is a material of excellent mechanical properties, which make it anideal fiber for reinforcing metal. Since iron is the most used metal in theworld, reinforcing iron with graphene can reduce the overall requirement ofmaterial in any application where strength is demanded. However, the effect ofgraphene reinforcement on the mechanical properties of iron needs to be knownbefore the industrial application of the composite. In this paper, we haveinvestigated the mechanical properties of graphene-reinforced iron composite byMolecular Dynamics (MD) method for various conditions. The properties wereinvestigated by applying uniaxial tension on a modeled representative volumeelement (RVE). The effect of temperature on the mechanical property of thecomposite was also studied because the knowledge is required for manufacturingproducts with the composite operating at a wide temperature range. MD analysisalso revealed that the initiation of fracture is from the matrix-fiberinterface. We also investigated how the distance of vacancy defects from thematrix-fiber interface affects the mechanical properties of the composite,which can be used to select a suitable manufacturing process. The resultsobtained from this study show that vacancy defects lower the strength at agreater extent as it gets closer to the interface.

aip conference proceedings

A Molecular Dynamics Investigation of Mechanical Properties of Graphene  Reinforced Iron Composite and The Effect of Vacancy Defect Distance from the  Matrix-Fiber Interface