期刊
AEROSPACE SCIENCE AND TECHNOLOGY
卷 79, 期 -, 页码 383-398出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ast.2018.05.058
关键词
Eccentrically stiffened FGM toroidal shell segment; Nonlinear response and buckling analysis; TSDT; Thermal environment; Elastic foundations
资金
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [107.02-2015.03]
This paper presents an analytical approach to study nonlinear response and buckling analysis of FGM toroidal shell segments reinforced by FGM stiffeners surrounded by elastic foundations in thermal environment and under external pressure. The formulations are based on Reddy's third-order shear deformation shell theory (TSDT) with von Karman nonlinearity, Pasternak type elastic foundations and smeared stiffener technique. By applying Galerkin's method and using stress function, closed-form expressions for determining the static critical external pressure load and postbuckling load-deflection curves are determined. Finally, the influences of geometrical parameters, volume fraction index, elastic foundations, and the effectiveness of stiffeners on the stability of shells are considered. (C) 2018 Elsevier Masson SAS. All rights reserved.
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