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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
  • 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


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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