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Numerical and Experimental Dynamic Analyses via Smart Composites


Affiliations
1 Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil
     

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This paper consists of evaluating a methodology based on a representative volume element and finite element analyses, using numerical and experimental modal analyses via smart composites. Vibration tests and finite element models are developed for aluminium cantilever beam with and without piezoelectric patches. The effective properties of the smart composites are calculated by applying the proposed methodology. Numerical predictions and experimental results are compared, showing that the relative differences between these dynamic analyses via piezoelectric patches are within 2.0%. The dynamic behaviour of the structure can be reasonably changed for a variation in the effective coefficients of the piezoelectric patches.

Keywords

Effective Coefficients, Smart Composites, Piezoelectric Materials, Finite Element Analyses, Modal Analyses.
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  • Numerical and Experimental Dynamic Analyses via Smart Composites

Abstract Views: 270  |  PDF Views: 2

Authors

Ricardo de Medeiros
Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil
Marcelo L. Ribeiro
Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil
Gregorio F. O. Ferreira
Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil
Flavio Donizeti Marques
Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil
Volnei Tita
Department of Aeronautical Engineering, Sao Carlos School of Engineering, University of Sao Paulo, Brazil

Abstract


This paper consists of evaluating a methodology based on a representative volume element and finite element analyses, using numerical and experimental modal analyses via smart composites. Vibration tests and finite element models are developed for aluminium cantilever beam with and without piezoelectric patches. The effective properties of the smart composites are calculated by applying the proposed methodology. Numerical predictions and experimental results are compared, showing that the relative differences between these dynamic analyses via piezoelectric patches are within 2.0%. The dynamic behaviour of the structure can be reasonably changed for a variation in the effective coefficients of the piezoelectric patches.

Keywords


Effective Coefficients, Smart Composites, Piezoelectric Materials, Finite Element Analyses, Modal Analyses.



DOI: https://doi.org/10.4273/ijvss.4.4.05