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Modeling of ray paths of head waves on irregular interfaces in TOFD inspection for NDE

hal.structure.identifierDépartement Imagerie et Simulation pour le Contrôle (CEA, LIST) [DISC (CEA, LIST)]
dc.contributor.authorFERRAND, Adrien
hal.structure.identifierDépartement Imagerie et Simulation pour le Contrôle (CEA, LIST) [DISC (CEA, LIST)]
dc.contributor.authorDARMON, Michaël
hal.structure.identifierDépartement Imagerie et Simulation pour le Contrôle (CEA, LIST) [DISC (CEA, LIST)]
dc.contributor.authorCHATILLON, Sylvain
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorDESCHAMPS, Marc
IDREF: 061797499
dc.date.accessioned2021-05-14T09:44:54Z
dc.date.available2021-05-14T09:44:54Z
dc.date.issued2014-09
dc.identifier.issn0041-624X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76909
dc.description.abstractEnThe TOFD (Time of Flight Diffraction) technique is a classical ultrasonic inspection method used in ultrasonic non-destructive evaluation (NDE). This inspection technique is based on an arrangement of two probes of opposite beam directions and allows a precise positioning and a quantitative evaluation of the size of cracks contained in the inspected material thanks to their edges diffraction echoes. Among the typical phenomena arising for such an arrangement, head waves, which propagate along the specimen surface and are chronologically the first waves reaching the receiver, are notably observed. Head wave propagation on planar surfaces in TOFD configurations is well known. However, realistic inspection configurations often involve components with irregular surfaces, like steel excavated specimens. Surface irregularity is responsible for numerous effects on the scattering of bulk waves, causing the melting of surface and bulk mechanisms in the head wave propagation. In order to extend the classical ray approach on these complex cases, a generic algorithm of ray tracing between interface points (GIRT) has been designed. With respect to time of flight minimization (i.e. the Generalized Fermat's Principle), ray paths can be computed by GIRT for different natures of waves scattered by the complex surfaces or by flaws. The head wave fronts computed by GIRT are notably in good agreement with FEM simulated results. This algorithm, based on pure kinematic analysis of waves propagation, represents a first step in the future development of a complete ray theory for head waves simulation on irregular interfaces.
dc.language.isoen
dc.publisherElsevier
dc.subject.enHead wave
dc.subject.enRay tracing algorithm
dc.subject.enIrregular surface
dc.subject.enWave diffraction
dc.subject.enNon-destructive evaluation
dc.title.enModeling of ray paths of head waves on irregular interfaces in TOFD inspection for NDE
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ultras.2013.12.007
dc.subject.halPhysique [physics]
bordeaux.journalUltrasonics
bordeaux.page1851 - 1860
bordeaux.volume54
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue7
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01836190
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01836190v1
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