Nonlinear postbuckling of an eccentrically stiffened thin FGM plate resting on elastic foundations in thermal environments

This paper first time presents an analytical investigation on the nonlinear postbuckling of imperfect eccentrically stiffened thin FGM plates under temperature and resting on elastic foundation using a simple power-law distribution (P-FGM). Both of the FGM plate and stiffeners are deformed under thermal loads. The formulations are based on the classical plate theory taking into account geometrical nonlinearity, initial geometrical imperfection, temperature-dependent properties and the Lekhnitsky smeared stiffeners technique with Pasternak type elastic foundation. By applying Galerkin method and using stress function, effects of material and geometrical properties, temperature, elastic foundation and eccentrically stiffeners on the buckling and postbuckling loading capacity of the eccentrically stiffened FGM plate in thermal environments are analyzed and discussed. Some results were compared with the one of the other authors

Title: 

Nonlinear postbuckling of an eccentrically stiffened thin FGM plate resting on elastic foundations in thermal environments
Authors: Duc, Nguyen Dinh
Cong, Pham Hong
Keywords: Classical plate theory
Eccentrically stiffened P-FGM plates
Elastic foundation
Nonlinear postbuckling
Thermal environments
Issue Date: 2014
Publisher: Thin-Walled Structures
Citation: Scopus
Abstract: This paper first time presents an analytical investigation on the nonlinear postbuckling of imperfect eccentrically stiffened thin FGM plates under temperature and resting on elastic foundation using a simple power-law distribution (P-FGM). Both of the FGM plate and stiffeners are deformed under thermal loads. The formulations are based on the classical plate theory taking into account geometrical nonlinearity, initial geometrical imperfection, temperature-dependent properties and the Lekhnitsky smeared stiffeners technique with Pasternak type elastic foundation. By applying Galerkin method and using stress function, effects of material and geometrical properties, temperature, elastic foundation and eccentrically stiffeners on the buckling and postbuckling loading capacity of the eccentrically stiffened FGM plate in thermal environments are analyzed and discussed. Some results were compared with the one of the other authors
Description: Thin-Walled Structures, Volume 75, February 2014, Pages 103-112
Thin-Walled Structures
URI: http://www.sciencedirect.com/science/article/pii/S0263823113002759
http://repository.vnu.edu.vn/handle/VNU_123/32509
ISSN: 02638231
Appears in Collections:Bài báo của ĐHQGHN trong Scopus

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