eprintid: 4015 rev_number: 8 eprint_status: archive userid: 354 dir: disk0/00/00/40/15 datestamp: 2020-07-18 02:01:15 lastmod: 2020-07-18 02:01:15 status_changed: 2020-07-18 02:01:15 type: article metadata_visibility: show creators_name: Nguyen, Dinh Duc creators_name: Kim, Seung-Eock creators_name: Nguyen, Dinh Khoa creators_name: Do, Quang Chan creators_id: ducnd@vnu.edu.vn title: Nonlinear buckling and post-buckling analysis of shear deformable stiffened truncated conical sandwich shells with functionally graded face sheets and a functionally graded porous core ispublished: pub subjects: isi divisions: CET_uet abstract: In this study, the nonlinear buckling and post-buckling analysis of stiffened truncated conical sandwich shells with functionally graded face sheets and a functionally graded porous core resting on the Winkler–Pasternak elastic foundation subject to a uniform axial compressive load has been investigated. Shells are reinforced by functionally graded material stringers and rings, in which the change of spacing between stringers in the meridional direction also is taken into account. The stability equations of the shell are derived based on the first-order shear deformation theory with a von Karman–Donnell type of kinematic nonlinearity and the smeared stiffener technique. Those equations are solved by the Galerkin method to determine the effects of stiffeners, shell characteristics, material properties, porosity coefficient, and elastic foundation on the critical buckling load and for analyzing the post-buckling load–deflection curves. The approaches are verified with the known results in the literature. date: 2020 date_type: published official_url: https://doi.org/10.1177/1099636220906821 full_text_status: public publication: Journal of Sandwich Structures & Materials refereed: TRUE issn: 1530-7972 citation: Nguyen, Dinh Duc and Kim, Seung-Eock and Nguyen, Dinh Khoa and Do, Quang Chan (2020) Nonlinear buckling and post-buckling analysis of shear deformable stiffened truncated conical sandwich shells with functionally graded face sheets and a functionally graded porous core. Journal of Sandwich Structures & Materials . ISSN 1530-7972 document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4015/1/1099636220906821