An accurate model for free vibration of porous magneto-electro-thermo-elastic functionally graded cylindrical shells subjected to multi-field coupled loadings

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

11 Scopus Citations
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Author(s)

  • Yiwen Ni
  • Shengbo Zhu
  • Jiabin Sun
  • Zhenzhen Tong
  • Zhenhuan Zhou
  • Xinsheng Xu

Detail(s)

Original languageEnglish
Pages (from-to)2006–2023
Journal / PublicationJournal of Intelligent Material Systems and Structures
Volume32
Issue number17
Online published12 Jan 2021
Publication statusPublished - Oct 2021

Abstract

An accurate model for vibration of a porous magneto-electro-thermo-elastic functionally graded (METE-FG) cylindrical shell made of barium titanate (BaTiO3) and cobalt diiron tetraoxide (CoFe2O4) with magneto-electro-thermal loadings is proposed within the framework of Hamiltonian system. Four types of porosity distribution profiles in the thickness direction are considered. By introducing a new total eigenvector, the higher-order governing differential equations are transformed into a set of lower-order equations. The exact solution for free vibration of METE-FG shells can be expanded in terms of specific symplectic eigenfunctions having seven possible explicit forms. Subsequently, analytical frequency equations and vibration mode shapes for METE-FG shells with various boundary conditions are derived simultaneously. A comparison study is presented to demonstrate the accuracy of the proposed model and very good agreement is observed. The effects of material properties and magneto-electro-thermal loadings on free vibration characteristics of METE-FG cylindrical shells are analyzed and discussed in detail.

Research Area(s)

  • analytical solution, cylindrical shell, Free vibration, functionally graded material, magneto-electro-thermo-elastic composites, symplectic method

Citation Format(s)

An accurate model for free vibration of porous magneto-electro-thermo-elastic functionally graded cylindrical shells subjected to multi-field coupled loadings. / Ni, Yiwen; Zhu, Shengbo; Sun, Jiabin et al.
In: Journal of Intelligent Material Systems and Structures, Vol. 32, No. 17, 10.2021, p. 2006–2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review