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dc.contributor.authorBAUDIS, Quentin
hal.structure.identifierInstitut Jean Le Rond d'Alembert [DALEMBERT]
dc.contributor.authorVALIER-BRASIER, Tony
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorWUNENBURGER, Regis
dc.date.issued2020
dc.date.conference2020-12-07
dc.description.abstractEnPolyurethane (PU) is a polymer often used in underwater acoustics due to its water-like acoustic properties and good resistance to low temperatures, sea water ageing and salinity. The full characterization of PU is challenging and especially that of its shear modulus. In this context, we propose two ultrasonic measurement methods with a precise temperature control in order to identify the dynamic behavior of PU. On the one hand, we have adapted the � anvil � technique used to characterize fluid rheology, to determine the shear modulus of PU. This technique is based on the measurment of the reflection coefficents of shear horizontal waves at oblique incidence. On the other hand, measurements in transmission in immersion are peformed in order to determine the bulk modulus of the PU. With the help of the temperature control, the time-temperature superposition principle is studied. That allows to determine the rheology of the PU over a wide frequency band and fractionnar derivative models are then used to describe this rheology.
dc.language.isoen
dc.subject.enViscoelasticty
dc.subject.enPolyurethane
dc.subject.enShear modulus
dc.subject.enBulk modulus
dc.title.enFull characterization of Polyurethane by ultrasonic measurements and temperature control
dc.typeCommunication dans un congrès
dc.identifier.doi10.48465/fa.2020.0787
dc.subject.halPhysique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Vibrations [physics.class-ph]
bordeaux.page2301-2301
bordeaux.countryFR
bordeaux.conference.cityLyon
bordeaux.peerReviewednon
hal.identifierhal-03240326
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2020-12-11
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03240326v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2020&rft.spage=2301-2301&rft.epage=2301-2301&rft.au=BAUDIS,%20Quentin&VALIER-BRASIER,%20Tony&WUNENBURGER,%20Regis&rft.genre=unknown


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