Journal
AEROSPACE SCIENCE AND TECHNOLOGY
Volume 77, Issue -, Pages 419-428Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ast.2018.03.020
Keywords
Porous functionally graded materials; Nonlinear thermomechanical analysis; Buckling and post-buckling; Reddy's higher order shear deformation theory; Elastic foundations; Thermal environment
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Funding
- Vietnam National University, Hanoi [QG.17.45]
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This work presents an analytical approach to investigate buckling and post-buckling behavior of FGM plate with porosities resting on elastic foundations and subjected to mechanical, thermal and thermomechanical loads. The formulations are based on Reddy's higher-order shear deformation plate theory taking into consideration Von Karman nonlinearity, initial geometrical imperfections, and Pasternak type of elastic foundations. By applying Galerkin method, closed-form relations of buckling loads and post-buckling equilibrium paths for simply supported plates are determined. Numerical results are carried out to show the effects of porosity distribution characteristics (Porosity-I and Porosity-II), geometrical parameters, material properties and elastic foundations on the mechanical, thermal and thermomechanical buckling loads and post-buckling resistance capacity of the porous FGM plates. (C) 2018 Elsevier Masson SAS. All rights reserved.
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