Buckling response with stretching effect of carbon nanotube-reinforced composite beams resting on elastic foundation

Zoubida Khelifa, Lazreg Hadji, Tahar Hassaine Daouadji and Mohamed Bourada

Abstract

This study deals with buckling analysis with stretching effect of functionally graded carbon nanotube-reinforced composite beams resting on an elastic foundation. The single-walled carbon nanotubes (SWCNTs) are aligned and distributed in polymeric matrix with different patterns of reinforcement. The material properties of the CNTRC beams are estimated by using the rule of mixture. The significant feature of this model is that, in addition to including the shear deformation effect and stretching effect it deals with only 4 unknowns without including a shear correction factor. The equilibrium equations have been obtained using the principle of virtual displacements. The mathematical models provided in this paper are numerically validated by comparison with some available results. New results of buckling analyses of CNTRC beams based on the present theory with stretching effect is presented and discussed in details. the effects of different parameters of the beam on the buckling responses of CNTRC beam are discussed.

Key Words

buckling; stretching effect; CNTRC beams; elastic foundation

Address

Zoubida Khelifa: 1) Department of Civil Engineering, Ibn Khaldoun University, BP 78 Zaaroura, Tiaret (14000), Algeria 2) Department of Civil Engineering, Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Algeria Lazreg Hadji and Tahar Hassaine Daouadji: 1) Department of Civil Engineering, Ibn Khaldoun University, BP 78 Zaaroura, Tiaret (14000), Algeria 2) Laboratory of Geomatics and Sustainable Development, Ibn Khaldoun University of Tiaret, Algeria Mohamed Bourada: Department of Civil Engineering, Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Algeria

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