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Modélisation d’une raideur équivalente créée par un réseau de poche de gaz à une interface liquide-solide. Application à l’inspection ultrasonore des réacteurs SFR

Abstract : Ultrasonic inspection through a surface wetted by liquid sodium is complex due to the presence of gaz pockets entrapped by the surface roughness. We define a gaz pocket stiffness at an imperfect liquid-solid interface. It will enable to calculate the transmitted coefficient of ultrasound. The gaz pocket stiffness has a static part but also an inertial part which depends from the ultrasonic frequency and from a radiation mass.
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Contributor : Dominique Chatain Connect in order to contact the contributor
Submitted on : Wednesday, October 9, 2019 - 11:25:13 AM
Last modification on : Tuesday, October 19, 2021 - 10:59:06 PM

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  • HAL Id : hal-01781552, version 1

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Kevin Paumel, Joseph Moysan, Dominique Chatain, G. Corneloup, F. Baqué. Modélisation d’une raideur équivalente créée par un réseau de poche de gaz à une interface liquide-solide. Application à l’inspection ultrasonore des réacteurs SFR. 19éme congrès français de Mécanique (CFM2009), Aug 2009, Marseille, France. ⟨hal-01781552⟩

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