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In situ synchrotron ultrasonic fatigue testing device for 3D characterisation of internal crack initiation and growth

Article dans une revue avec comité de lecture
Author
MESSAGER, Alexandre
JUNET, Arnaud
31551 Matériaux, ingénierie et science [Villeurbanne] [MATEIS]
ccPALIN-LUC, Thierry
ccBUFFIERE, Jean-Yves
31551 Matériaux, ingénierie et science [Villeurbanne] [MATEIS]
EL MAY, Mohamed
GAILLARD, Yves
554511 Centre technique des industries de la fonderie [CTIF]
KING, Andrew
1744 Synchrotron SOLEIL [SSOLEIL]
BONNIN, Anne
1961 Paul Scherrer Institute [PSI]
NADOT, Yves
118112 Institut Pprime [UPR 3346] [PPrime [Poitiers]]
ccRANC, Nicolas
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccSAINTIER, Nicolas
1002421 Institut de Mécanique et d'Ingénierie [I2M]

URI
http://hdl.handle.net/10985/18362
DOI
10.1111/ffe.13140
Date
2020
Journal
Fatigue and Fracture of Engineering Materials and Structures

Abstract

This work presents a new ultrasonic fatigue testing device for studying the initiation and propagation mechanisms of internal microstructurally short fatigue cracks using in situ synchrotron tomography. Its principle is described as well as the method used for automatically detecting crack initiation and its subsequent growth. To promote internal crack initiation, specimens containing internal casting defects were tested between the high cycle and very high cycle fatigue regimes (107-109 cycles). Preliminary results show the ability of this new device to initiate an internal microstructurally short crack in a reasonable testing time and monitor its growth.

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  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

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