Numerical simulation of creep rupture of a reactor pressure vessel in a severe hypothetical accident needs to perfectly take account of interactions between creep phenomena and damage. The continuous damage theory enables to formulate models strongly coupling elasto-visco-plasticity and damage. Such models have been implemented in various computer codes and, in particular, in ASTER at Electricite´ de France, CASTEM 2000 at Commissariat a` l’Energie Atomique and SYSTUS+® at SYSTUS International. The objective of this paper is to present briefly a validation study of the three different numerical implementations and to compare the coupled approach to an uncoupled one on an example of a cylinder of the program “RUPTHER,” under internal pressure and heated to a temperature of 700°C. [S0094-9930(00)01004-0]
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November 2000
Technical Papers
Creep-Damage Analysis: Comparison Between Coupled and Uncoupled Models
S. Bhandari,
S. Bhandari
Framatome, Tour Framatome, 92084 Paris La De´fense Cedex, France
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X. Feral,
X. Feral
Framatome, Tour Framatome, 92084 Paris La De´fense Cedex, France
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J.-M. Bergheau,
J.-M. Bergheau
SYSTUS International, 69485 Lyon, Cedex 03, France
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G. Mottet,
G. Mottet
SYSTUS International, 69485 Lyon, Cedex 03, France
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P. Dupas,
P. Dupas
EDF-DER, Les Renardie`res, Ecuelles, 77818 Moret sur Loing Cedex, France
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L. Nicolas
L. Nicolas
CEA-DRN-DMT, CEN-Saclay, 91191 Gif sur Yvette, France
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S. Bhandari
Framatome, Tour Framatome, 92084 Paris La De´fense Cedex, France
X. Feral
Framatome, Tour Framatome, 92084 Paris La De´fense Cedex, France
J.-M. Bergheau
SYSTUS International, 69485 Lyon, Cedex 03, France
G. Mottet
SYSTUS International, 69485 Lyon, Cedex 03, France
P. Dupas
EDF-DER, Les Renardie`res, Ecuelles, 77818 Moret sur Loing Cedex, France
L. Nicolas
CEA-DRN-DMT, CEN-Saclay, 91191 Gif sur Yvette, France
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division, May 31, 2000; revised manuscript received July 21, 2000. Technical Editor: S. Y. Zamrik.
J. Pressure Vessel Technol. Nov 2000, 122(4): 408-412 (5 pages)
Published Online: July 21, 2000
Article history
Received:
May 31, 2000
Revised:
July 21, 2000
Citation
Bhandari , S., Feral, X., Bergheau, J., Mottet, G., Dupas, P., and Nicolas, L. (July 21, 2000). "Creep-Damage Analysis: Comparison Between Coupled and Uncoupled Models ." ASME. J. Pressure Vessel Technol. November 2000; 122(4): 408–412. https://doi.org/10.1115/1.1310364
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