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Recovery of the effective wavenumber and dynamical mass density for materials with inclusions

dc.contributor.authorLEPERT, Guillaume
hal.structure.identifierLaboratoire de Mécanique Physique [LMP]
dc.contributor.authorARISTÉGUI, Christophe
dc.contributor.authorPONCELET, Olivier
dc.contributor.authorBRUNET, Thomas
hal.structure.identifierDCNS
dc.contributor.authorAUDOLY, Christian
dc.contributor.authorPARNEIX, Patrick
dc.contributor.editorSociété Française d'Acoustique
dc.date.accessioned2021-05-14T10:03:38Z
dc.date.available2021-05-14T10:03:38Z
dc.date.issued2012-04-23
dc.date.conference2012-04-23
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/78422
dc.description.abstractEnFor many years, the study of material with locally resonant inclusions has known a great interest. Due to their attractive macroscopic acoustic properties, which do not exist in natural materials, many applications governed by the contrast between the constituent properties can be achieved/expected: cloaking, enhanced absorption, flat plate lens, wave trapping Such structures containing inclusions are usually modeled as effective homogeneous materials with complex-valued and frequency-dependent effective wavenumber and mass density. In this context, we derived a method for the simultaneous determination of both parameters using an immersed sample. First, its reliability is demonstrated using theoretical input data with simulated measurement noise. Finally, the characterization method is applied to experimental waveforms measured on test panels made with materials designed in order to exhibit cavity resonances over the frequency range of study.
dc.language.isoen
dc.source.titleAcoustics 2012 Nantes
dc.subject.enCharacterization
dc.title.enRecovery of the effective wavenumber and dynamical mass density for materials with inclusions
dc.typeCommunication dans un congrès avec actes
dc.subject.halSciences de l'ingénieur [physics]/Acoustique [physics.class-ph]
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.countryFR
bordeaux.title.proceedingAcoustics 2012
bordeaux.conference.cityNantes
bordeaux.peerReviewedoui
hal.identifierhal-00811114
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00811114v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Acoustics%202012%20Nantes&rft.date=2012-04-23&rft.au=LEPERT,%20Guillaume&ARIST%C3%89GUI,%20Christophe&PONCELET,%20Olivier&BRUNET,%20Thomas&AUDOLY,%20Christian&rft.genre=proceeding


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