Zobrazeno 1 - 10 of 98 pro vyhledávání: '"Jean-François CHAIX"'
1
Akademický článek
Edge and Notch Detection in a Plate Using Time Reversal Process of Leaky Lamb Waves
Autor: Jean-Christophe Vallée, Marie-Aude Ploix, François Baqué, Matthieu Cavaro, Jean-François Chaix
Publikováno v: Applied Sciences, Vol 12, Iss 1, p 228 (2021)
Leaky Lamb waves are proven effective to carry out nondestructive testing especially on parallel and immersed plates. To detect and localize defects in such a set, this work associates for the first time the topological energy method and leaky Lamb w
Externí odkaz: https://doaj.org/article/c00833ad0b3a4c32b579e7c96ae06cfe
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4
Acoustical properties of an immersed corner -cube retroreflector alone and behind screen for ultrasonic telemetry applications
Autor: François Baqué, Gilles Corneloup, Marie-Aude Ploix, Ivan Lillamand, Jean-François Chaix, Pierre Kauffmann
Publikováno v: Ultrasonics
Ultrasonics, Elsevier, 2020, ⟨10.1016/j.ultras.2020.106149⟩
Ultrasonics, 2020, ⟨10.1016/j.ultras.2020.106149⟩
Ultrasonic telemetry measurements consist in remotely detecting and locating an object. To maximize the signal-to-noise ratio, a target may be used, positioned at a reference point. In this framework, the ultrasonic reflective characteristics of a co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7d948afaceab964583cd220cd468dac
https://hal.archives-ouvertes.fr/hal-03020971
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5
Weld inspection by focused adjoint method
Autor: Emma Lubeigt, Serge Mensah, Gilles Gobillot, Khaled Metwally, Jean-François Chaix, François Baqué, Sandrine T. Rakotonarivo
Publikováno v: Ultrasonics
Ultrasonics, Elsevier, 2018, 83, pp.80-87. ⟨10.1016/j.ultras.2017.08.009⟩
Ultrasonics, 2018, 83, pp.80-87. ⟨10.1016/j.ultras.2017.08.009⟩
This paper reports a methodology for the non-destructive ultrasonic evaluation of welds, based on probing, residue back-focusing and topological energy calculation using an enhanced (focused) adjoint method. The proposed method combines the advantage
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27fda4afcd6ff5e241f5e8ea91d56e05
https://doi.org/10.1016/j.ultras.2017.08.009
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6
Topological imaging in bounded elastic media
Autor: Serge Mensah, Emma Lubeigt, François Baqué, Jean-François Chaix, Sandrine T. Rakotonarivo, Gilles Gobillot
Publikováno v: Ultrasonics
Ultrasonics, Elsevier, 2017, 76, pp.145-153. ⟨10.1016/j.ultras.2017.01.002⟩
Ultrasonics, 2017, 76, pp.145-153. ⟨10.1016/j.ultras.2017.01.002⟩
Detecting, imaging and sizing defects in a bounded elastic medium is still a difficult task, especially when access is complex. Adjoint methods simplify the task as they take advantage of prior information such as the geometry and material properties
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f75d32207942e1313733280e9d60898a
https://doi.org/10.1016/j.ultras.2017.01.002
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8
Simulations of ultrasonic wave propagation in concrete based on a two-dimensional numerical model validated analytically and experimentally
Autor: Jean-Marie Henault, Ting Yu, Dimitri Komatitsch, Lorenzo Audibert, Vincent Garnier, Jean-François Chaix
Publikováno v: Ultrasonics
Ultrasonics, Elsevier, 2019, Ultrasonics, 92, pp.21-34. ⟨10.1016/j.ultras.2018.07.018⟩
Ultrasonics, 2019, Ultrasonics, 92, pp.21-34. ⟨10.1016/j.ultras.2018.07.018⟩
International audience; Several non-destructive evaluation techniques to characterize concrete structures are based on ultrasonic wave propagation. The interpretation of the results is often limited by the scattering phenomena between the ultrasonic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6a1b5f30f00fa7aab084836a7c887cd
https://hal.archives-ouvertes.fr/hal-01934352
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9
Recent modelling advances in NDT to improve safety and sustainability for the next generation of nuclear reactor
Autor: Moysan, J., Gilles Corneloup, Jean-François CHAIX, Cécile Gueudré, Dimitri Komatitsch, Ivan Lillamand, Jean Mailhé, Serge Mensah, Marie-Aude Ploix, Payan, C., Rakotonarivo, Sandrine T., Baqué, F., Bonnin, J., Cavaro, M., Gobillot, G., Jp. Jeannot, Lhuillier, C., Paumel, K., Emma Lubeigt, Nicolas Massacret, Hondt, Lilian D., Pierre Kauffmann, Masaru Nagaso, Quentin Marsac
Publikováno v: Anglo-French Physical Acoustics Conference (AFPAC-2019)
Anglo-French Physical Acoustics Conference (AFPAC-2019), Jan 2019, Frejus, France
HAL
International audience; In the frame of Generation 4 Nuclear Reactor developments, the French LMA Laboratory and the French CEA nuclear institute undertake a joint work for improving monitoring and inspection of future Sodium Fast Reactors.The goal i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f65624ac52bb0306fa92af9d66e0596c
https://hal.archives-ouvertes.fr/hal-02411064
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10
Akademický článek
Quantification of the Uncertainty in Ultrasonic Wave Speed in Concrete: Application to Temperature Monitoring with Embedded Transducers
Autor: Rouba Hariri, Jean-Francois Chaix, Parisa Shokouhi, Vincent Garnier, Cécile Saïdi-Muret, Olivier Durand, Odile Abraham
Publikováno v: Sensors, Vol 24, Iss 17, p 5588 (2024)
This article presents an overall examination of how small temperature fluctuations affect P-wave velocity (Vp) measurements and their uncertainties in concrete using embedded piezoelectric transducers. This study highlights the fabrication of custom
Externí odkaz: https://doaj.org/article/67c1d8a221cc4794bbcb760f4bc68cf4
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