Three-dimensional buckling and free vibration analyses of initially stressed functionally graded graphene reinforced composite cylindrical shell

Liu, D, Kitipornchai, S, Chen, W and Yang, J 2018, 'Three-dimensional buckling and free vibration analyses of initially stressed functionally graded graphene reinforced composite cylindrical shell', Composite Structures, vol. 189, pp. 560-569.


Document type: Journal Article
Collection: Journal Articles

Title Three-dimensional buckling and free vibration analyses of initially stressed functionally graded graphene reinforced composite cylindrical shell
Author(s) Liu, D
Kitipornchai, S
Chen, W
Yang, J
Year 2018
Journal name Composite Structures
Volume number 189
Start page 560
End page 569
Total pages 10
Publisher Elsevier
Abstract The buckling and free vibration of initially stressed functionally graded cylindrical shell reinforced with non-uniformly distributed graphene platelets (GPLs) are investigated using the state-s pace formulation based on three-dimensional elasticity theory. The shell is under an axial initial stress and composed of multilayers with GPLs uniformly dispersed in each individual layer but its weight fraction changing layer-by-layer along the thickness direction. The modified Halpin-Tsai model and rule of mixtures are employed to evaluate the effective elastic properties of the GPL-reinforced shell. Analytical buckling and frequency solutions are obtained for simply supported shells. Numerical results are presented for functionally graded GPL-reinforced cylindrical shells with five GPL dispersion patterns (GPL-UD, GPL-V, GPL-A, GPL-X, and GPL-O). The effects of GPL weight fraction, dispersion pattern, geometry, and size as well as the influence of initial stress on the buckling and free vibration characteristics of the shell are discussed in detail. It is found that the addition of a small amount of GPLs significantly increases the critical buckling stress and natural frequencies. The GPL-X pattern outperforms other patterns for thin composite shells while the uniform pattern GPL-UD works better for thick composite shells.
Subject Solid Mechanics
Keyword(s) Buckling
Functionally graded plate
Graphene platelet
State-space approach
Three-dimensional elasticity theory
Vibration
DOI - identifier 10.1016/j.compstruct.2018.01.106
Copyright notice © 2018 Elsevier Ltd. All rights reserved.
ISSN 0263-8223
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