Free vibration of functionally graded-GPL reinforced composite plates with different boundary conditions

Reddy, R. Muni Rami and Karunasena, W. and Lokuge, W. (2018) Free vibration of functionally graded-GPL reinforced composite plates with different boundary conditions. Aerospace Science and Technology, 78. pp. 147-156. ISSN 1270-9638

Abstract

A first order shear deformation theory based finite element approach is used in this paper to investigate the free vibration behaviour of functionally graded thin, moderately thick and thick multi-layer composite plates reinforced with graphene nanoplatelets (GPLs). The effect of four different layer-wise variations of GPL distribution along the thickness and all possible plate edge boundary condition combinations on the natural frequencies of the plate are investigated. The effective Young’s modulus for each layer and distribution type is determined using the modified Halpin-Tsai model, and mass density and Poisson’s ratio are calculated based on the rule of mixture. Initially, present results are verified by comparing with available reported results. Thereafter, the method is used to conduct a parametric study, focussing on the effect of length to thickness ratio, different boundary conditions, GPL distribution patterns, percentage weight fraction of GPL, and geometry and size of GPL on the natural frequencies and percentage increase in natural frequencies.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Restricted access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 03 Jul 2018 06:43
Last Modified: 03 Jul 2018 06:43
Uncontrolled Keywords: natural frequency; functionally graded material; graphene nanoplatelets; nanocomposite; boundary conditions
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.ast.2018.04.019
URI: http://eprints.usq.edu.au/id/eprint/34144

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