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Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Online from: 2005
Subject Area: Mechanical & Materials Engineering
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Thermally induced vibrations of piezo-thermo-viscoelastic composite beam with relaxation times and system response
| Title: | Thermally induced vibrations of piezo-thermo-viscoelastic composite beam with relaxation times and system response |
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| Author(s): | 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) |
| Citation: | Sharnappa, N. Ganesan, Raju Sethuraman, (2010) "Thermally induced vibrations of piezo-thermo-viscoelastic composite beam with relaxation times and system response", Multidiscipline Modeling in Materials and Structures, Vol. 6 Iss: 1, pp.120 - 140 |
| Keywords: | Composite materials, Piezoelectricity, Relaxation theory, Thermal properties of materials, Vibration |
| Article type: | Research paper |
| DOI: | 10.1108/15736101011055293 (Permanent URL) |
| Publisher: | Emerald Group Publishing Limited |
| Acknowledgements: | The authors wish to thank the reviewers for critical reading of the manuscript and giving the valuable suggestions in order to improve the quality of the paper. The authors are grateful to V. Pradeep for clarifying technical issues during research work. |
| Abstract: | Purpose – 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 – 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 – The findings show viscoelastic behavior with relaxation times in composite sandwich structures. Originality/value – The paper shows accounting relaxation times as a memory load in composite sandwich structures. |
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