Journal
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
Volume 34, Issue 10, Pages 1380-1407Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0892705719870593
Keywords
Nonlinear buckling and postbuckling; functionally graded graphene-reinforced composite; toroidal shell segment; thermal environment; elastic foundation; external pressure
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This article presents the nonlinear buckling and postbuckling analysis of functionally graded graphene-reinforced composite (FG-GRC) laminated toroidal shell segments under external pressure, elastic foundations, and thermal environments. The study explores the effects of graphene volume fraction, distribution types, geometrical properties, elastic foundation, and thermal environments on the linear and nonlinear buckling and postbuckling behaviors.
Nonlinear buckling and postbuckling analysis of functionally graded graphene-reinforced composite (FG-GRC) laminated toroidal shell segments subjected to external pressure surrounded by elastic foundations and exposed to thermal environment are presented in this article. Governing equations for toroidal shell segments are based on the Donnell shell theory taking into account geometrical nonlinearity term in von Karman sense with shell-foundation interaction modeled by Pasternak's elastic foundation. Three-term solution form of deflection and stress function are chosen, and Galerkin method is applied to obtain the nonlinear load-deflection relation. Numerical investigations show the effects of graphene volume fraction, graphene distribution types, geometrical properties, elastic foundation, and thermal environments on the linear and nonlinear buckling and postbuckling behaviors of FG-GRC laminated toroidal shell segments.
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