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Smart monitoring of aeronautical composites plates based on electromechanical impedance measurements and artificial neural networks

Selva, Pierre and Cherrier, Olivier and Pommier-Budinger, Valérie and Lachaud, Frédéric and Morlier, Joseph Smart monitoring of aeronautical composites plates based on electromechanical impedance measurements and artificial neural networks. (2013) Engineering Structures, 56. 794-804. ISSN 0141-0296

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Official URL: http://dx.doi.org/10.1016/j.engstruct.2013.05.025

Abstract

This paper presents a structural health monitoring (SHM) method for in situ damage detection and localization in carbon fiber reinforced plates (CFRPs). The detection is achieved using the electromechanical impedance (EMI) technique employing piezoelectric transducers as high-frequency modal sensors. Numerical simulations based on the finite element method are carried out so as to simulate more than a hundred damage scenarios. Damage metrics are then used to quantify and detect changes between the electromechanical impedance spectrum of a pristine and damaged structure. The localization process relies on artificial neural networks (ANNs) whose inputs are derived from a principal component analysis of the damage metrics. It is shown that the resulting ANN can be used as a tool to predict the in-plane position of a single damage in a laminated composite plate.

Item Type:Article
HAL Id:hal-01851633
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > CT Ingénierie (FRANCE)
Laboratory name:
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Deposited By: Olivier Cherrier
Deposited On:27 Aug 2013 09:56

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