Parametric instability of thermo-mechanically loaded functionally graded graphene reinforced nanocomposite plates

Wu, H, Yang, J and Kitipornchai, S 2018, 'Parametric instability of thermo-mechanically loaded functionally graded graphene reinforced nanocomposite plates', International Journal of Mechanical Sciences, vol. 135, pp. 431-440.


Document type: Journal Article
Collection: Journal Articles

Title Parametric instability of thermo-mechanically loaded functionally graded graphene reinforced nanocomposite plates
Author(s) Wu, H
Yang, J
Kitipornchai, S
Year 2018
Journal name International Journal of Mechanical Sciences
Volume number 135
Start page 431
End page 440
Total pages 10
Publisher Pergamon Press
Abstract This paper investigates the parametric instability of functionally graded graphene reinforced nanocomposite plates that undergo a periodic uniaxial in-plane force and a uniform temperature rise. The plate is composed of multiple graphene platelet reinforced composite (GPLRC) layers in which graphene platelets (GPLs) are uniformly distributed in each individual layer with GPL concentration varying layer-wise across the plate thickness. The modified Halpin-Tsai model that takes into account the GPL geometry effect is employed to calculate the Young's modulus of the GPLRC. Based on the first-order shear deformation theory, the governing equations are deduced and then are solved by using the differential quadrature approach integrated with the Bolotin's method. A parametric study is undertaken to show the influences of GPL distribution pattern, concentration and geometry, temperature change, static in-plane force, plate geometry and boundary condition on the parametric instability of functionally graded multilayer GPLRC plates. It is found that the addition of a small amount of GPL reinforcements considerably increases the critical buckling load and natural frequencies but reduces the size of unstable region. The reinforcing effect is the best when the surface layers of the plate are GPL-rich.
Subject Civil Engineering not elsewhere classified
Keyword(s) Buckling
Free vibration
Functionally graded plate
Graphene nanocomposite
Parametric instability
DOI - identifier 10.1016/j.ijmecsci.2017.11.039
Copyright notice © 2017 Elsevier Ltd. All rights reserved.
ISSN 0020-7403
Additional Notes ARC DP140102132
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