Steel and Composite Structures

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Nonlinear buckling and post-buckling of functionally graded CNTs reinforced composite truncated conical shells subjected to axial load

  • Do, Quang Chan (University of Transport Technology) ;
  • Pham, Dinh Nguyen (Avanced Materials and Structures Laboratory, University of Engineering and Technology) ;
  • Vu, Dinh Quang (Avanced Materials and Structures Laboratory, University of Engineering and Technology) ;
  • Vu, Thi Thuy Anh (Avanced Materials and Structures Laboratory, University of Engineering and Technology) ;
  • Nguyen, Dinh Duc (Avanced Materials and Structures Laboratory, University of Engineering and Technology)
  • Received : 2018.05.08
  • Accepted : 2019.04.04
  • Published : 2019.05.10
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Abstract

This study deals with the nonlinear static analysis of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) truncated conical shells subjected to axial load based on the classical shell theory. Detailed studies for both nonlinear buckling and post-buckling behavior of truncated conical shells. The truncated conical shells are reinforced by single-walled carbon nanotubes which alter according to linear functions of the shell thickness. The nonlinear equations are solved by both the Airy stress function and Galerkin method based on the classical shell theory. In numerical results, the influences of various types of distribution and volume fractions of carbon nanotubes, geometrical parameters, elastic foundations on the nonlinear buckling and post-buckling behavior of FG-CNTRC truncated conical shells are presented. The proposed results are validated by comparing with other authors.

Keywords

Acknowledgement

Supported by : Vietnam National University, Hanoi (VNU)

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