Nonlinear axisymmetric response of FGM shallow spherical shells on elastic foundations under uniform external pressure and temperature

Based on the classical shell theory taking into account geometrical nonlinearity, initial geometrical imperfection and Pasternak type elastic foundation, the nonlinear axisymmetric response of shallow spherical FGM shells under mechanical, thermal loads and different boundary conditions is considered in this paper. Using the Bubnov-Galerkin method and stress function, obtained results show effects of elastic foundations, external pressure, temperature, material and geometrical properties on the nonlinear buckling and postbuckling of the shells. The snap-through behaviors of the FGM spherical shallow shells on elastic foundations also are analyzed carefully in this paper. Some results were compared with the ones of other authors.

Title: Nonlinear axisymmetric response of FGM shallow spherical shells on elastic foundations under uniform external pressure and temperature
Authors: Duc, Nguyen Dinh
Anh, Vu Thi Thuy
Cong, Pham Hong
Keywords: Elastic foundation
FGM shallow spherical shells
Nonlinear axisymmetric response
Issue Date: 2014
Publisher: European Journal of Mechanics, A/Solids
Citation: Scopus
Abstract: Based on the classical shell theory taking into account geometrical nonlinearity, initial geometrical imperfection and Pasternak type elastic foundation, the nonlinear axisymmetric response of shallow spherical FGM shells under mechanical, thermal loads and different boundary conditions is considered in this paper. Using the Bubnov-Galerkin method and stress function, obtained results show effects of elastic foundations, external pressure, temperature, material and geometrical properties on the nonlinear buckling and postbuckling of the shells. The snap-through behaviors of the FGM spherical shallow shells on elastic foundations also are analyzed carefully in this paper. Some results were compared with the ones of other authors
Description: European Journal of Mechanics, A/Solids, Volume 45, MayJune 2014, Pages 80-89
European Journal of Mechanics, A/Solids
URI: http://www.sciencedirect.com/science/article/pii/S0997753813001435
http://repository.vnu.edu.vn/handle/VNU_123/32728
ISSN: 09977538
Appears in Collections:Bài báo của ĐHQGHN trong Scopus

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