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NESC VII European Project: Demonstration of Warm Pre Stressing Effect in Biaxial Loading Conditions—Bending Tests on 18MND5 Cruciform Specimens

[+] Author Affiliations
C. Jacquemoud, T. Yuritzinn, S. Marie

CEA Saclay, Gif-sur-Yvette, France

D. Moinereau

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

M. Nedelec

IRSN, Fontenay-aux-Roses, France

S. Chapuliot

AREVA NP, Paris La Défense, France

Paper No. PVP2011-57189, pp. 255-263; 9 pages
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4456-4
  • Copyright © 2011 by ASME


In the framework of NESC VII European project, a large experimental program has been dedicated to demonstrate the Warm Pre Stressing (WPS) effect in different testing configurations. One of the CEA (France) contributions to this project is the realization of five point bending tests on large cruciform specimens considering different WPS loading cycles. The five cruciform specimens, sponsored by EDF (France) and IRSN (France), are made of 18MND5 steel. Two of them have been tested on a same LCF (Load-Cool-Fracture) loading cycle, including an isothermal preloading at TWPS = −30°C followed by a cooling down to TFRAC = −150°C at a constant load before an isothermal reloading up to fracture at TFRAC . The results presented in this paper give a successful demonstration of the Warm Pre Stressing effect in biaxial loading conditions on a LCF cycle.

Copyright © 2011 by ASME



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