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Crack Propagation Under High Thermal Amplitude Cycles in a Ductile Material

[+] Author Affiliations
Christophe Vallet, Jean-Michel Stéphan

EDF R&D/MMC, Moret-sur-Loing, France

The Hiep Chau

EDF R&D/AMA, Clamart, France

Paper No. PVP2012-78737, pp. 457-462; 6 pages
doi:10.1115/PVP2012-78737
From:
  • ASME 2012 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Toronto, Ontario, Canada, July 15–19, 2012
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5502-7
  • Copyright © 2012 by ASME

abstract

An experimental setup was built in order to study the fatigue crack propagation in high stressed structure with plastified zone.

This paper deals with results obtained in a first stage of the experiment program. Thermal cycles are applied on a simplified mock-up including four short pre-cracking defects. Local measurements (thermocouples, strain gages) and crack lengths are provided.

A numerical interpretation of the test was then performed and the results were compared to the experiment.

Copyright © 2012 by ASME

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