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Prediction and Measurement of Sealing Properties of Joints Between Wavy Metal Surfaces

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorBOURNIQUEL, Julien
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorLASSEUX, Didier
IDREF: 131294474
hal.structure.identifierInstitut d'Informatique et de Mathématiques Appliquées de Grenoble [IMAG]
dc.contributor.authorRIT, Jean-François
dc.date.accessioned2021-05-14T09:39:30Z
dc.date.available2021-05-14T09:39:30Z
dc.date.issued2018-11-01
dc.identifier.issn0094-9930
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76498
dc.description.abstractEnThe transmissivity of metal-metal sealing joints is investigated experimentally and compared to predictions obtained by modelling. The focus is laid upon a wavy surface contacting a flat rigid part, representative of a seat-to-plug contact in an internal sealing valve encountered in nuclear power plants for instance. Experimental transmissivities are obtained from water leak-rate and pressure drop measurements carried out on a model ring-shape sample seat holding a controlled wavy defect and pressed against a rigid flat plug with a controlled normal load. The sample seat surface is manufactured by face turning a tubular part under radial stress and waviness is obtained after elastic relaxation. Modelling is performed on a 3D finite element model of the assembly, composed of the plug, the sample seat and its holder. The upper sample seat surface, which topography is recorded by confocal microscopy, is reconstructed using a modal decomposition on a basis of vibrational eigen modes. Its lower surface, in contact with the holder, is considered as perfectly flat or with its own defects. The contact aperture field between the seat and the plug is computed for a given normal load and is used to solve the incompressible Reynolds equation with a boundary element method, yielding the transmissivity. Predicted transmissivities reveal to be in good agreement with experimental data at low clamping loads and are overestimated for larger ones. Defects on the lower surface of the seat are shown to have a significant impact on the seat-to plug contact transmissivity. Nomenclature A Apparent contact area: A = π(r 2 e − r 2 i) (m 2) C contour of the contact zones F clamping load (N) h(r, θ) local aperture (m) I identity matrix K stiffness matrix (N.m −1) K measured transmissivity (m 3) K rr computed transmissivity (m 3)
dc.language.isoen
dc.publisherAmerican Society of Mechanical Engineers
dc.title.enPrediction and Measurement of Sealing Properties of Joints Between Wavy Metal Surfaces
dc.typeArticle de revue
dc.identifier.doi10.1115/1.4040894
dc.subject.halSciences de l'ingénieur [physics]/Milieux fluides et réactifs
dc.subject.halSciences de l'ingénieur [physics]/Génie des procédés
bordeaux.journalJournal of Pressure Vessel Technology
bordeaux.volume140
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue5
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-02367301
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02367301v1
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