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Lamb waves scattering model for identification of damage parameters

Communication sans acte
Auteur
ccBRIAND, William
ccRÉBILLAT, Marc
ccGUSKOV, Mikhail
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccMECHBAL, Nazih

URI
http://hdl.handle.net/10985/23350
Date
2022-05

Résumé

In order to optimize their maintenance costs, airlines are very interested in the condition based maintenance approach. For this purpose, structural health data coming from the monitoring of structural subcomponents and in particular their residual useful life (RUL) are used. If a damage is detected in the part, the evolution of its size will strongly influence the RUL. It is therefore essential to have a tool to monitor the size of defects in structures in a reliable manner. In this article, we propose an analytical scattering model that deals with piezoelectric transducers in acting and sensing mode. The actuator generates Lamb waves which are reflected by an inhomogeneity in the material and captured by the PZT in sensor mode. By specifying the material parameters and the input signal, the model predicts the output signal. The theoretical model is successfully validated on simulation data. Finally, the model is used to perform damage size quantification.

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2022-11-20
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Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • DAMAGE SIZE QUANTIFICATION IN AERONAUTIC COMPOSITE STRUCTURES BASED ON IMAGING RESULTS POST-PROCESSING 
    Communication avec acte
    BRIAND, William; ccMECHBAL, Nazih; ccGUSKOV, Mikhail; ccRÉBILLAT, Marc (A. Benjeddou, N. Mechbal and J.F. De¨u, 2019)
    Thanks to their high strength to mass ratio, composite materials are now widespread in the aerospace industry. Nevertheless, this type of material is subject to various internal damages and it is mandatory to monitor in ...
  • Damage imaging post processing for delamination size assessment of CFRP aeronautic structures 
    Communication avec acte
    BRIAND, William; ccMECHBAL, Nazih; ccGUSKOV, Mikhail; ccRÉBILLAT, Marc (2020)
    Thanks to their high strength to mass ratio, composite materials are now widespread in the aerospace industry. Nevertheless, this type of material is sub- ject to internal damages like delamination. In order to detect and ...
  • Damage Size Quantification Using Lamb Waves by Analytical Model Identification 
    Communication avec acte
    ccBRIAND, William; ccRÉBILLAT, Marc; ccGUSKOV, Mikhail; ccMECHBAL, Nazih (Springer International Publishing, 2022-06)
    Corrosion is a major concern for the aeronautic industry and providing structures with the intrinsic ability to monitor autonomously their health state is a major actual academic and industrial challenge. In this paper, ...
  • Upcoming damage size quantification in aeronautic composite structures based on imaging results post-processing 
    Article dans une revue avec comité de lecture
    BRIAND, William; ccRÉBILLAT, Marc; ccGUSKOV, Mikhail; ccMECHBAL, Nazih (SAGE Publications, 2021)
    In this paper, a damage quantification strategy relying on post-processing of Lamb wave based damage localization results is presented. This method is able to predict the upcoming sizes of a delamination after a training ...
  • Detection, localization, and quantification of corrosion damage using Lamb Waves for the structural health monitoring of aluminum aeronautics structures 
    Communication avec acte
    LIEGEY, Julie; ccBRIAND, William; ccRÉBILLAT, Marc; ccEL MAY, Mohamed; ccDEVOS, Olivier; ccMECHBAL, Nazih (Springer, 2022-07-04)
    Corrosion is a major concern for the aeronautic industry and providing structures with the intrinsic ability to monitor autonomously their health state is a major actual academic and industrial challenge. In this paper, ...

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