Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 81, Issue -, Pages 17-25Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2014.01.016
Keywords
Nonlinear buckling; S-FGM with metal-ceramic-metal layers; Eccentrically stiffened cylindrical shells; Imperfection; Elastic foundation; Thermal environment
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Funding
- Vietnam National University, Hanoi
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In this paper, an analytical approach is presented to investigate the nonlinear static buckling for imperfect eccentrically stiffened functionally graded thin circular cylindrical shells with temperature-dependent properties surrounded on elastic foundation in thermal environment. Both shells and stiffeners are deformed simultaneously due to temperature. Material properties are graded in the thickness direction according to a Sigmoid power law distribution in terms of the volume fractions of constituents (S-FGM) with metal-ceramic-metal layers. The Lekhnitsky smeared stiffeners technique with Pasternak type elastic foundation, stress function and the Bubnov-Galerkin method are applied. Numerical results are given for evaluating effects of temperature, material and geometrical properties, elastic foundations and eccentrically outside stiffeners on the buckling and post-buckling of the S-FGM shells. The obtained results are validated by comparing with those in the literature. (C) 2014 Elsevier Ltd. All rights reserved.
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