Zobrazeno 1 - 10
of 92
pro vyhledávání: '"S. Mahaut"'
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 53:664-667
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cda993ff870ee52c6395b210e9bd3328
https://doi.org/10.1784/insi.2011.53.12.664
https://doi.org/10.1784/insi.2011.53.12.664
Publikováno v:
Revue de Métallurgie. 107:59-69
Les phenomenes de fatigue thermique ou mecanique de materiaux conduisent a l’alteration des structures, allant jusqu’a la creation de fissures. L’objectif du controle non destructif (CND) est de detecter ces fissures et determiner leurs dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e00f21e80fcea7010717bcbf0b4601cf
https://doi.org/10.1051/metal/2010013
https://doi.org/10.1051/metal/2010013
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 51:78-81
The CEA LIST develops the simulation platform CIVA which includes UT, ECT and RT modules. UT simulation is based on semi-analytical models of the ultrasound propagation and scattering and allows to address a wide range of realistic and complex config
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2571a94e1dfbae7f2bc1249dee89794
https://doi.org/10.1784/insi.2009.51.2.78
https://doi.org/10.1784/insi.2009.51.2.78
Publikováno v:
Ultrasonics. 36:127-131
An adaptive system based on phased array techniques has been developed by the French Atomic Energy Commission (CEA) in order to improve performance of non-destructive examination, particularly for the adaptability to different control configurations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6930244961fefe5d667e25f81ecd1dff
https://doi.org/10.1016/s0041-624x(97)00141-8
https://doi.org/10.1016/s0041-624x(97)00141-8
Publikováno v:
AIP Conference Proceedings.
The Kirchhoff approximation is commonly used for the modeling of echoes in ultrasonic NDE. It consists in locally approximating the illuminated surface by an infinite plane to compute elastic fields. A model based on this approximation is used in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a84647705fd85efceccba4df55a17025
https://doi.org/10.1063/1.4716230
https://doi.org/10.1063/1.4716230
Publikováno v:
AIP Conference Proceedings.
For some specific applications in ultrasonic non destructive evaluation, EMATs (ElectroMagnetic Acoustic Transducers) are very useful for generating and receiving ultrasonic waves. EMAT works without any contact and liquid coupling. Various surface o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68d0e2f3540444169d6d22bfa72d4a6a
https://doi.org/10.1063/1.4716327
https://doi.org/10.1063/1.4716327
Publikováno v:
Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1994, 04 (C5), pp.C5-741-C5-744. ⟨10.1051/jp4:19945160⟩
Journal de Physique IV Proceedings, EDP Sciences, 1994, 04 (C5), pp.C5-741-C5-744. ⟨10.1051/jp4:19945160⟩
Visualizations of the acoustic field produced by reflection/réfraction of bursts of plane longitudinal waves in the water-filled cylindrical cavity of a solid matrix have been made with a pulsed schlieren system. The positions of the cusp points of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d62caf7d2f8441c42a2b13b2617122c0
https://doi.org/10.1051/jp4:19945160
https://doi.org/10.1051/jp4:19945160
Ray theory applied to the internal caustic identification of liquid cavities acoustically insonified
Publikováno v:
The Journal of the Acoustical Society of America. 95:1143-1146
The acoustic field in water‐filled cylindrical cavities machined inside a duraluminum matrix is studied. The internal acoustic beam focused near the cusp points within the liquid cavity. An optical process (pulsed schlieren technique) is used to vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::658cb8d8eda64432747ea7d26a6ddeb4
https://doi.org/10.1121/1.408462
https://doi.org/10.1121/1.408462
Publikováno v:
AIP Conference Proceedings.
For several years, simulation tools aiming at predicting results of ultrasonic inspection have been developed and integrated into the CIVA simulation platform software at CEA‐LIST. Those models have recently been extended in order to take account o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ecb8ffc2844ddf43cb2daa41b378ec
https://doi.org/10.1063/1.3591843
https://doi.org/10.1063/1.3591843
Publikováno v:
AIP Conference Proceedings.
This communication presents the results obtained on the configurations proposed in the 2010 UT modelling benchmark with the ultrasonic models implemented in the CIVA software. Experiments have been performed upon a planar block containing vertical pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23386f396115d9684f96b093fa0d5878
https://doi.org/10.1063/1.3592143
https://doi.org/10.1063/1.3592143