Elastic Wave Characteristics of Graphene Reinforced Polymer Nanocomposite Curved Beams Including Thickness Stretching Effect.

Pouyan Talebizadehsardari,Arameh Eyvazian,Tamer A Sebaey,Farayi Musharavati,Roohollah Babaei Mahani

doi:10.3390/polym12102194

Abstract

This work aims at analyzing elastic wave characteristics in a polymeric nanocomposite curved beam reinforced by graphene nanoplatelets (GNPs). GNPs are adopted as a nanofiller inside the matrix to enhance the effective properties, which are approximated through Halpin-Tasi model and a modified rule of mixture. A higher-order shear deformation theory accounting for thickness stretching and the general strain gradient model to have both nonlocality and strain gradient size-dependency phenomena are adopted to model the nanobeam. A virtual work of Hamilton statement is utilized to get the governing motion equations and is solved in conjunction with the harmonic solution procedure. A comparative study shows the effects of small-scale coefficients, opening angle, weight fraction, the total number of layers in GNPs, and wave numbers on the propagation of waves in reinforced nanocomposite curved beams. This work is also developed for two different distribution of GNPs in a polymeric matrix, namely uniformly distribution and functionally graded one.

Highlights

IntroductionPreparing an enhancement in the mechanical characteristics to apply in different industries is the main aim of reinforcing polymeric-metal-ceramic matrixes
Reinforced composite materials comprise a high-strength additive included with the intact resin.Preparing an enhancement in the mechanical characteristics to apply in different industries is the main aim of reinforcing polymeric-metal-ceramic matrixes
Atif et al [7] reviewed that properties of graphene-based reinforced epoxy nanocomposites in terms of mechanical, thermal, and electrical are associated with the topographical features, weight fraction, morphology, surface functionalization, and dispersion state of graphene

Summary

Introduction

Preparing an enhancement in the mechanical characteristics to apply in different industries is the main aim of reinforcing polymeric-metal-ceramic matrixes. The usage of nano-scale derivatives of carbon as a reinforcement phase inside polymer nanocomposites has enhanced electrical, mechanical, and thermal properties [2,3,4,5] Atif et al [7] reviewed that properties of graphene-based reinforced epoxy nanocomposites in terms of mechanical, thermal, and electrical are associated with the topographical features, weight fraction, morphology, surface functionalization, and dispersion state of graphene. Carbon nanotubes (CNTs), because their stacking sequence caused by wall-to-wall van der Waals interactions, have been considered appropriate candidates for polymer matrix reinforcement. High tensile modulus, and lower production cost of GPLS, make them perfect reinforcement material to use in composites which are applicable in the fields of biomedical, aerospace, automotive, and civil engineering [8,9]

Objectives

Methods

Findings

Conclusion