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Journal article

Estimation of piezoelastic and viscoelastic properties in laminated structures

By Araujo, A. L.; Soares, C. M. Mota; Herskovits, J.; Pedersen, Pauli1,2

From

Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark1

Department of Mechanical Engineering, Technical University of Denmark2

An inverse method for material parameter estimation of elastic, piezoelectric and viscoelastic laminated plate structures is presented. The method uses a gradient based optimization technique in order to solve the inverse problem, through minimization of an error functional which expresses the difference between experimental free vibration data and corresponding numerical data produced by a finite element model.

The complex modulus approach is used to model the viscoelastic material behavior, assuming hysteretic type damping. Applications that illustrate the influence of adhesive material interfaces and viscoelastic parameter identification are presented and a few simulated test cases aid the interpretation of results. (C) 2008 Elsevier Ltd.

All rights reserved.

Language: English
Year: 2009
Pages: 168-174
ISSN: 18791085 and 02638223
Types: Journal article
DOI: 10.1016/j.compstruct.2008.05.009
ORCIDs: Pedersen, Pauli

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