Journal
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
Volume -, Issue -, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S021945542450086X
Keywords
Nonlinear analysis; static buckling; laminated composite shell; graphene nanoplatelet; elastic foundation
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This paper investigates the nonlinear buckling response of laminated composite cylindrical shells reinforced with graphene nanoplatelets (GNPs). It analytically studies the functionally graded shell reinforced by GNPs under external pressure and uniform temperature rise loadings. The study also assumes that the GNP-reinforced laminated composite shell is in contact with an elastic foundation. The results reveal that various factors including material properties, geometrical characteristics, and load parameters significantly affect the buckling behavior of laminated composite cylindrical shells.
The nonlinear buckling response of laminated composite cylindrical shells reinforced with graphene nanoplatelets (GNPs) is studied in this paper. The functionally graded (FG) shell reinforced by GNPs is analytically studied under external pressure and uniform temperature rise loadings. It is also assumed that the GNP-reinforced laminated composite shell is in contact with an elastic foundation. Various types of profiles are employed for the GNP distribution patterns in the shell thickness including 10 nanocomposite layers. The nonlinear strain-displacement relations of the shallow cylindrical panel are established utilizing the third-order shear deformation shell theory. Governing equilibrium equations of the laminated GNP-reinforced composite shell are formulated employing the principle of virtual displacement. The coupled system of nonlinear differential equations is solved analytically for the hinged-hinged and fixed-fixed boundaries of the shell using a perturbation-based technique. Correctness of presented formulations and obtained solutions is proved by comparisons with results from previous studies for an isotropic cylindrical shell. Novel numerical results reveal that the material properties, geometrical characteristics and load parameters significantly affect on the buckling behavior of laminated composite cylindrical shells.
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