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Journal of Sandwich Structures and Materials
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Article

Finite Element Model for Hybrid Active-Passive Damping Analysis of Anisotropic Laminated Sandwich Structures

A. L. Araújo1, C. M. Mota Soares2*, and C. A. Mota Soares2

1 ESTIG - Polytechnic Institute of Bragança, Bragança, Portugal
2 IDMEC/IST - Technical University of Lisbon, Lisbon, Portugal

* To whom correspondence should be addressed. E-mail: cristovao.mota.soares{at}ist.utl.pt.


  Abstract

In this article, we present a new finite element model for the analyzis of active sandwich laminated plates with a viscoelastic core and laminated anisotropic face layers, as well as piezoelectric sensor and actuator layers. The model is formulated using a mixed layerwise approach, by considering a higher order shear deformation theory to represent the displacement field of the viscoelastic core and a first-order shear deformation theory for the displacement field of the adjacent laminated anisotropic face layers and exterior piezoelectric layers. Control laws are implemented and the model is validated using reference solutions from the literature, and a benchmark application is proposed.

First published on July 7, 2009
Journal of Sandwich Structures and Materials 2009, doi:10.1177/1099636209104534
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