Nonlinear vibrations of magneto-electro-elastic doubly curved shells reinforced with carbon nanotubes

Vinyas, M and Harursampath, D (2020) Nonlinear vibrations of magneto-electro-elastic doubly curved shells reinforced with carbon nanotubes. In: Composite Structures, 253 .

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Abstract

In this article, the study on the geometrically nonlinear free vibration behaviour of higher order shear deformable Carbon nanotube reinforced magneto-electro-elastic (CNTMEE) doubly curved shells has been performed. The displacement fields and geometric nonlinearity are assumed to follow Donnell Shell theory and von-Karman's relation, respectively. Using Hamilton's principle the governing equations of motion are derived. A special attention has been paid to investigate the effect of electro-magnetic circuits on the nonlinear frequency response of CNTMEE shells for the first time. Numerical examples are illustrated to assess the influence of different parameters including shell geometry, CNT distribution, volume fraction, shallowness ratio, thickness ratio, aspect ratio in detail. Also, the contribution of combined/individual coupling fields on nonlinear free vibrations has been examined. The results suggest that the geometric and material parameters alter the nonlinear characteristics of CNTMEE shells significantly.

Item Type:	Journal Article
Publication:	Composite Structures
Publisher:	Elsevier Ltd
Additional Information:	The copyright of this article belongs to Elsevier Ltd
Keywords:	Aspect ratio; Equations of motion; Frequency response; Geometry; Magnetic circuits; Reinforced plastics; Reinforcement; Shells (structures), Geometric non-linearity; Geometrically nonlinear; Governing equations of motion; Magneto electro elastic; Non-linear free vibration; Non-linear vibrations; Nonlinear characteristics; Nonlinear frequency response, Carbon nanotubes
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	28 Aug 2020 11:05
Last Modified:	28 Aug 2020 11:05
URI:	http://eprints.iisc.ac.in/id/eprint/66405

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