An Analytical Approach of Nonlinear Thermo-mechanical Buckling of Functionally Graded Graphene-reinforced Composite Laminated Cylindrical Shells under Compressive Axial Load Surrounded by Elastic Foundation

Authors

  • Hoai Nam Vu Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam | Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
  • Minh Duc Vu Faculty of Civil Engineering, University of Transport Technology, Hanoi, 100000, Vietnam
  • Ngoc Ly Le Faculty of Fundamental Science for Engineering, University of Transport Technology, Hanoi, 100000, Vietnam
  • Thi Phuong Nguyen Faculty of Civil Engineering, University of Transport Technology, Hanoi, 100000, Vietnam
  • Thoi Trung Nguyen Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam | Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
Abstract:

This paper deals with an analytical approach to predict the nonlinear buckling behavior of functionally graded graphene-reinforced composite laminated cylindrical shells under axial compressive load surrounded by Pasternak’s elastic foundation in a thermal environment. Piece-wise functionally graded graphene-reinforced, composite layers are sorted with different types of graphene distribution. The governing equations are established by using Donnell’s shell theory with von Kármán nonlinearity terms and three-term solution of deflection is chosen for modeling the uniform deflection of pre-buckling state, linear and nonlinear deflection of post-buckling state. Galerkin method is applied to determine the critical axial compressive buckling load expression, post-buckling load-deflection and load-end shortening relations of the shell. The effects of environment temperature, foundation, geometrical properties, and graphene distribution on buckling behavior of shell, are numerically evaluated.

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Journal title

volume 6  issue 2

pages  357- 372

publication date 2020-04-01

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