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Nonlinear Analysis on Buckling and Postbuckling of Stiffened FGM Imperfect Cylindrical Shells Filled Inside by Elastic Foundations in Thermal Environment Using TSDT

Latin American Journal of Solids and Structures, 2017-06, Vol.14 (5), p.950-977 [Peer Reviewed Journal]

COPYRIGHT 2017 Latin American Journal of Solids and Structures ;This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1679-7825 ;ISSN: 1679-7817 ;EISSN: 1679-7825 ;DOI: 10.1590/1679-78253171

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  • Title:
    Nonlinear Analysis on Buckling and Postbuckling of Stiffened FGM Imperfect Cylindrical Shells Filled Inside by Elastic Foundations in Thermal Environment Using TSDT
  • Author: Vuong, Pham Minh ; Dung, Dao Van
  • Subjects: axial compression load and external pressure ; ENGINEERING, CIVIL ; ENGINEERING, MECHANICAL ; Machine parts ; Mechanical properties ; MECHANICS ; Nonlinear analysis on buckling and postbuckling ; Reddy's third-order shear deformation shell theory ; Reliability (Engineering) ; Stiffened FGM imperfect cylindrical shell ; Testing ; Thermal environment
  • Is Part Of: Latin American Journal of Solids and Structures, 2017-06, Vol.14 (5), p.950-977
  • Description: The main aim of this paper is to investigate analytically nonlinear buckling and post-buckling of functionally graded stiffened circular cylindrical shells filled inside by Pasternak two-parameter elastic foundations in thermal environments and under axial compression load and external pressure by analytical approach. Shells are reinforced by closely spaced rings and stringers. The material properties of shell and the stiffeners are assumed to be continuously graded in the thickness direction. Using the Reddy third order shear deformation shell theory, stress function method and Lekhnitskii smeared stiffeners technique, the governing equations are derived. The closed form to determine critical axial load and post-buckling load-deflection curves are obtained by Galerkin method. The effects of temperature, stiffener, foundation, material and dimensional parameters on the stability behavior of shells are shown. The accuracy of the presented method is affirmed by comparisons with well-known results in references. The results shown for thick cylindrical shells, the use of TSDT for determining their critical buckling load is necessary and more suitable.
  • Publisher: Latin American Journal of Solids and Structures
  • Language: English;Portuguese
  • Identifier: ISSN: 1679-7825
    ISSN: 1679-7817
    EISSN: 1679-7825
    DOI: 10.1590/1679-78253171
  • Source: SciELO
    ROAD: Directory of Open Access Scholarly Resources
    DOAJ Directory of Open Access Journals
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