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Thermally induced vibrations of piezo‐thermo‐viscoelastic composite beam with relaxation times and system response

Sharnappa (Machine Design Section, Mechanical Department, Indian Institute of Technology Madras, Chennai, India)
N. Ganesan (Machine Design Section, Mechanical Department, Indian Institute of Technology Madras, Chennai, India)
Raju Sethuraman (Machine Design Section, Mechanical Department, Indian Institute of Technology Madras, Chennai, India)

Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Article publication date: 16 June 2010

533

Abstract

Purpose

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The purpose of this paper is to present numerical studies on thermally induced vibrations of piezo‐thermo‐viscoelastic composite beam subjected to a transient thermal load using coupled finite element method.

Design/methodology/approach

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The thermal relaxation and viscoelastic relaxations are taken into consideration to obtain the system response. The concept of “memory load” along with the thermal relaxation is accounted for viscoelastic core material. The influence of type of core material on the response of the system also analyzed.

Findings

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The findings show viscoelastic behavior with relaxation times in composite sandwich structures.

Originality/value

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The paper shows accounting relaxation times as a memory load in composite sandwich structures.

Keywords

Citation

Sharnappa, Ganesan, N. and Sethuraman, R. (2010), "Thermally induced vibrations of piezo‐thermo‐viscoelastic composite beam with relaxation times and system response", Multidiscipline Modeling in Materials and Structures, Vol. 6 No. 1, pp. 120-140. https://doi.org/10.1108/15736101011055293

Publisher

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Emerald Group Publishing Limited

Copyright © 2010, Emerald Group Publishing Limited

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