Nonlinear Dynamic Response of FG Graphene Platelets Reinforced Composite Beam with Edge Cracks in Thermal Environment

Author:

Yang Zhicheng1,Tam Meifung2,Zhang Yingyan2,Kitipornchai Sritawat3,Lv Jiangen1,Yang Jie2

Affiliation:

1. College of Urban and Rural Construction, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, P. R. China

2. School of Engineering, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia

3. School of Civil Engineering, The University of Queensland, St Lucia, Brisbane, QLD, 4072, Australia

Abstract

This paper presents a numerical investigation on the nonlinear dynamic response of multilayer functionally graded graphene platelets reinforced composite (FG-GPLRC) beam with open edge cracks in thermal environment. It is assumed that graphene platelets (GPLs) in each GPLRC layer are uniformly distributed and randomly oriented with its concentration varying layer-wise along the thickness direction. The effective material properties of each GPLRC layer are predicted by Halpin-Tsai micromechanics-based model. Finite element method is employed to calculate the dynamic response of the cracked FG-GPLRC beam. It is found that the maximum dynamic deformation of the cracked FG-GPLRC beam under dynamic loading is quite sensitive to the crack location and grows with an increase in the crack depth ratio (CDR) and temperature rise. The influences of GPL distribution, concentration, geometry as well as the boundary conditions on the dynamic response characteristics of cracked FG-X-GPLRC beams are also investigated comprehensively.

Funder

Australian Research Council

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering

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