Laser ultrasonics and mode conversion for ...
Type de document :
Communication dans un congrès avec actes
Titre :
Laser ultrasonics and mode conversion for flaw depth gauging
Auteur(s) :
Faëse, Frédéric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Jenot, Frederic [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ouaftouch, Mohammadi [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Duquennoy, Marc [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ourak, Mohamed [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Jenot, Frederic [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ouaftouch, Mohammadi [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Duquennoy, Marc [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ourak, Mohamed [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Titre de la manifestation scientifique :
13th International Symposium on Nondestructive Characterization of Materials, NDCM-XIII
Ville :
Le Mans
Pays :
France
Date de début de la manifestation scientifique :
2013
Titre de l’ouvrage :
Proceedings of 13th International Symposium on Nondestructive Characterization of Materials, NDCM-XIII
Date de publication :
2013
Mot(s)-clé(s) en anglais :
non destructive testing (NDT)
laser ultrasonics
Rayleigh waves
mode conversion
flaw depth gauging
laser ultrasonics
Rayleigh waves
mode conversion
flaw depth gauging
Résumé en anglais : [en]
Compared to earliest non destructive testing and evaluation methods based on transducers, laser ultrasonics shows specific advantages. It is a non-contact method combining a high spatial resolution and a large bandwidth, ...
Lire la suite >Compared to earliest non destructive testing and evaluation methods based on transducers, laser ultrasonics shows specific advantages. It is a non-contact method combining a high spatial resolution and a large bandwidth, allowing high temperature and/or geometrically complex materials testing. In this work, ultrasonic waves are generated in an aluminium sample by a pulsed Nd:YAG laser in the thermoelastic mode. An interferometric optical probe is used to detect surface waves after their interaction with a flaw. This study will particularly focus on two Rayleigh waves. The first one is directly transmitted by the flaw whereas the second one is mode-converted from the head wave. Considering the relative amplitude of these two waves, experimental results lead to an original flaw depth gauging method.Lire moins >
Lire la suite >Compared to earliest non destructive testing and evaluation methods based on transducers, laser ultrasonics shows specific advantages. It is a non-contact method combining a high spatial resolution and a large bandwidth, allowing high temperature and/or geometrically complex materials testing. In this work, ultrasonic waves are generated in an aluminium sample by a pulsed Nd:YAG laser in the thermoelastic mode. An interferometric optical probe is used to detect surface waves after their interaction with a flaw. This study will particularly focus on two Rayleigh waves. The first one is directly transmitted by the flaw whereas the second one is mode-converted from the head wave. Considering the relative amplitude of these two waves, experimental results lead to an original flaw depth gauging method.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Non spécifiée
Vulgarisation :
Non
Source :