Prediction of Mechanical Properties of Graphene Oxide Reinforced Aluminum Composites

Abstract

Estimating the effect of graphene oxide (GO) reinforcement on overall properties of aluminum (Al) matrix composites experimentally is time-consuming and involves high manufacturing costs and sophisticated characterizations. An attempt was made in this paper to predict the mechanical properties of GO/Al composites by using a micromechanical finite element approach. The materials used for prediction included monolayer and multilayer GO layers distributed uniformly on the spherical Al matrix particles. The estimation was done by assuming that a representative volumetric element (RVE) represents the composite structure, and reinforcement and matrix were modeled as continuum. The load transfer between the GO reinforcement and Al was modeled using joint elements that connect the two materials. The numerical results from the finite element model were compared with Voigt model and experimental results from the GO/Al composites produced at optimized process parameters. A good agreement of numerical results with the theoretical models was noted. The load-bearing capacity of the Al matrix increased with the addition of GO layers, however, Young’s modulus of the GO/Al composites decreased with an increase in the number of layers from monolayer to 5 layers. The numerical results presented in this paper have demonstrated the applicability of the current approach for predicting the overall properties of composites.

Review—Computational Studies of Graphene Reinforced Nanocomposites: Techniques, Parameters, and Future Perspectives

“…The improved yield strength of GO Al N composite is shown as 269.7 MPa at 0.05%, 320.9 MPa at 0.1% and 390.4 MPa at 0.2% of GO. 167 Chandra et al have proposed a multiscale modelling approach to simulate the nonlinear tensile behaviour of NC reinforced with SLG. The NC is represented using an atomistic FE model for Gr and continuum 3D elements for the matrix.…”

Nanocarbon reinforced aluminium matrix (NRAM) composites: Fabrication, structure and properties

“…and all these excellent properties make graphene an ideal reinforcing material to fabricate the aluminium or its alloy matrix nanocomposites [83]. Graphene reinforced aluminium matrix nanocomposites with enhanced strength, stiffness, good ductility and wear resistance are widely studied by researchers [84][85][86][87][88][89]. Grain refinement due to the presence of graphene, high hardness, high strength and graphene's self-lubricating character are the reasons for these improvements [15].…”

Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites

“…The finite element model has an idealized interface without any defects, which causes the measured value of the composite strength to be lower than the simulation value, which is another important reason. (3) The difference between the idealized finite element model and the graphene used in the experiment will also affect the simulation results, which will make the simulation values higher than the experimental values.…”

“…Graphene has broad application prospects in the field of composite materials due to its excellent thermal conductivity, mechanical properties, and electrical conductivity [1][2][3][4][5][6][7][8]. Presently, the research of graphene reinforced composites mainly focuses on the experimental preparation of inorganic ceramic-based and polymer-based and a small amount of metal-based composites [9][10][11][12][13][14].…”