Three-dimensional micromechanical modelling of effective elastic properties of graphene nanoplatelet-reinforced polymer nanocomposite using a HFGMC-based homogenization approach

Document Type : Research Article

Authors

Faculty of Mechanical and Energy Engineering, Shahid Beheshti University,Tehran, Iran

Abstract

A three-dimensional analytical micromechanical model based on the unit cell is extended to extract the elastic properties of graphene-nanoplatelet reinforced polymer nanocomposites. Graphene-nanoplatelet /epoxy interphase region changing gradually is considered elastic with isotropic behavior. To simulate the random distribution of graphene, the geometry of the representative volume element of the nanocomposite is divided into a three-dimensional cubic with subcells. The obtained results are compared with the available research studies. Moreover, the effect of parameters such as the volume of graphene-nanoplatelet in the epoxy resin, the graphene-nanoplatelet aggregation, and the interphase region are investigated on the response of the nanocomposite. It is shown that the aggregation of graphene-nanoplatelet depends on its volume fraction. The results show that the elastic properties obtained from the present micromechanical model taking into account the random distribution, the agglomeration of nanoparticles, and also interphase are close to the experimental data.

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Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 55, Issue 4
July 2023
Pages 495-514

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