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hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorALAOUI, Hamza
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorRODRIGUEZ, Samuel
IDREF: 185733875
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorDESCHAMPS, Marc
IDREF: 061797499
dc.date.accessioned2021-05-14T09:31:34Z
dc.date.available2021-05-14T09:31:34Z
dc.date.issued2021
dc.identifier.issn0041-624X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75901
dc.description.abstractEnThe present work deals with locating a defect buried in a medium composed of a fluid matrix and small solid inhomogeneities. Classical imaging methods are based on delay and sum principle and would implicitly assume that the undamaged medium is homogeneous. The topological imaging framework however allows to take into account the heterogeneous nature of the undamaged medium and potentially to take advantage of it. In this work, it is applied to a demanding test case with different assumptions on the knowledge of the medium properties using a specifically-designed fluid-solid compatible imaging function. It leads to the definition of three imaging processes whose results are compared using respectively synthetic and experimental data. The results show the relevance of using the inhomogeneities' locations information, but not necessarily at all steps of the imaging process, leading to the definition of so called hybrid topological imaging method.
dc.language.isoen
dc.publisherElsevier
dc.subject.enNondestructive Testing
dc.subject.enUltrasonic Waves
dc.subject.enTopological Imaging
dc.subject.enHeterogeneous Medium
dc.subject.enMultiple scattering
dc.subject.enPeriodic Cluster
dc.title.enDetection of defects in a 2D fluid-solid periodic cluster
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ultras.2020.106307
dc.subject.halSciences de l'ingénieur [physics]/Acoustique [physics.class-ph]
bordeaux.journalUltrasonics
bordeaux.page1-11
bordeaux.volume112
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-03064836
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03064836v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ultrasonics&rft.date=2021&rft.volume=112&rft.spage=1-11&rft.epage=1-11&rft.eissn=0041-624X&rft.issn=0041-624X&rft.au=ALAOUI,%20Hamza&RODRIGUEZ,%20Samuel&DESCHAMPS,%20Marc&rft.genre=article


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