Nonlinear thermomechanical buckling and post-buckling response of porous FGM plates using Reddy's HSDT

被引:204
|
作者
Pham Hong Cong [1 ,2 ]
Trinh Minh Chien [3 ]
Nguyen Dinh Khoa [1 ]
Nguyen Dinh Duc [1 ,3 ,4 ]
机构
[1] VNU Hanoi Univ Engn & Technol UET, Adv Mat & Struct Lab, 144 Xuan Thuy, Hanoi, Vietnam
[2] Vietnam Acad Sci & Technol, CIC, 18 Hoang Quoc Viet, Hanoi, Vietnam
[3] Sejong Univ, Dept Civil & Environm Engn, 98 Gunja Dong, Seoul 143747, South Korea
[4] VJU, Infrastruct Engn Program VNU Hanoi, My Dinh 1, Hanoi, Vietnam
关键词
Porous functionally graded materials; Nonlinear thermomechanical analysis; Buckling and post-buckling; Reddy's higher order shear deformation theory; Elastic foundations; Thermal environment; FUNCTIONALLY GRADED PLATES; DIFFERENTIAL CUBATURE; VIBRATION ANALYSIS; DYNAMIC-RESPONSE; STABILITY;
D O I
10.1016/j.ast.2018.03.020
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
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.
引用
收藏
页码:419 / 428
页数:10
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