Active Health Monitoring of Composites by Embedded PZT Transducers: A Comprehensive Study of Embedment Effects, Novel Processing Techniques and a Lamb Wave Mode Filtering Tool - Couverture souple

Paget, Christophe

 
9783639161403: Active Health Monitoring of Composites by Embedded PZT Transducers: A Comprehensive Study of Embedment Effects, Novel Processing Techniques and a Lamb Wave Mode Filtering Tool
Couverture souple
ISBN 10 : 3639161408 ISBN 13 : 9783639161403
Editeur : VDM Verlag, 2009

Synopsis

The work encompasses a study of interaction between embedded PZT transducers and composite structures as well as technique improvement to simplify Lamb waves analysis. The design of embedded PZT transducers was improved by reducing the stress concentrations in composites. The experiments, performed in static loading, indicated that the embedded PZT transducer did not significantly reduce the strength of the composite. Further investigations were conducted to evaluate the performance of the improved PZT transducer used as a Lamb wave generator embedded in composites subjected to mechanical loading. The tests were performed in static and fatigue loading. The study showed a large working range of the embedded PZT transducers. A post processing technique based on wavelets was developed for damage assessment. This method focused on the wavelet coefficients from the Lamb wave response decomposition, improving the damage detection capabilities. The other technique was devoted to filtering the Lamb waves by the use of multi-element transducers. This technique allowed the reduction of the effect of a Lamb wave mode towards another

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Présentation de l'éditeur

The work encompasses a study of interaction between embedded PZT transducers and composite structures as well as technique improvement to simplify Lamb waves analysis. The design of embedded PZT transducers was improved by reducing the stress concentrations in composites. The experiments, performed in static loading, indicated that the embedded PZT transducer did not significantly reduce the strength of the composite. Further investigations were conducted to evaluate the performance of the improved PZT transducer used as a Lamb wave generator embedded in composites subjected to mechanical loading. The tests were performed in static and fatigue loading. The study showed a large working range of the embedded PZT transducers. A post processing technique based on wavelets was developed for damage assessment. This method focused on the wavelet coefficients from the Lamb wave response decomposition, improving the damage detection capabilities. The other technique was devoted to filtering the Lamb waves by the use of multi-element transducers. This technique allowed the reduction of the effect of a Lamb wave mode towards another

Biographie de l'auteur

Christophe received his Master of Engineering (Hons) in Mechatronics and a PhD in Electronics from Valenciennes University, France. He also holds a PhD in Aeronautics from the Royal Institute of Technology, Sweden. He worked for FOI in Sweden from 1996 to 2002 on SHM. In 2002 he joined Airbus where he still works as SHM Technology Leader

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag
Date d'édition
2009
Langue
anglais
ISBN 10 
3639161408
ISBN 13 
9783639161403
Reliure
Broché
Nombre de pages
152
Coordonnées du fabricant
non disponible
Personne responsable
Buchpark GmbH
gpsr@buchpark.de

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