On nonlinear vibration of sandwiched polymer- CNT/GPL-fiber nanocomposite nanoshells

karimiasl, M and Ebrahimi, F and Mahesh, V (2020) On nonlinear vibration of sandwiched polymer- CNT/GPL-fiber nanocomposite nanoshells. In: Thin-Walled Structures, 146 .

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Abstract

This article investigates the nonlinear vibration behavior of multiscale nanocomposites nanoshell subjected to hygrothermal environment and resting on elastic foundations. The novelty and contribution of this article is considering a multiscale doubly curved sandwich nanoshell. Three-phase composite nanoshell composes of polymer-Carbon nanotube-fiber (PCF) and polymer-Graphene platelet-fiber (PGF) according to Halpin-Tsai model. Various distributions patterns such as U (uniform), X, A and O are considered. The classical shell theory and nonlocal strain gradient theory including von Kármán strain–displacement relationships are employed to build the size-dependent governing equations. The governing equations of multiscale nanoshell have been implemented by Hamilton's principle and solved by homotopy perturbation method. For investigating correctness and accuracy, this paper is validated by other previous researches. Finally, the effects of different parameters such as temperature rise, various distributions patterns and curvature ratio have been investigated. © 2019 Elsevier Ltd

Item Type:	Journal Article
Publication:	Thin-Walled Structures
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Carbon nanotubes; Nanocomposites; Perturbation techniques; Polymers, Hamilton's principle; Homotopy Perturbation Method (HPM); Hygrothermal environment; Nanoshell; Non-linear vibrations; Polymer carbon nanotubes; Strain gradient theory; Three-phase composites, Nanoshells
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	08 Feb 2023 11:01
Last Modified:	08 Feb 2023 11:01
URI:	https://eprints.iisc.ac.in/id/eprint/80080

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