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TECHNICAL PAPERS

Creep-Damage Analysis: Comparison Between Coupled and Uncoupled Models

[+] Author and Article Information
S. Bhandari, X. Feral

Framatome, Tour Framatome, 92084 Paris La Défense Cedex, France

J.-M. Bergheau, G. Mottet

SYSTUS International, 69485 Lyon, Cedex 03, France

P. Dupas

EDF-DER, Les Renardières, Ecuelles, 77818 Moret sur Loing Cedex, France

L. Nicolas

CEA-DRN-DMT, CEN-Saclay, 91191 Gif sur Yvette, France

J. Pressure Vessel Technol 122(4), 408-412 (Jul 21, 2000) (5 pages) doi:10.1115/1.1310364 History: Received May 31, 2000; Revised July 21, 2000
Copyright © 2000 by ASME
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References

Strub C., and Devos, J., 1996, “Modelling of Creep Rupture Experiments Using a Coupled Damage-Viscoplasticity Model,” ASME PVP-Vol. 331, American Society of Mechanical Engineers, New York, NY.
Manuel de Référence, 1997, Version 4, Code ASTER, EDF-DER.
SYSTUS+® Version 1.1, 1997, User’s Manual, Framasoft, Lyon, France.
Devos, J., Mongabure, P., Sainte Catherine, C., and Nicolas, L., 1997, “The RUPTHER Programme: Progress status,” ASME PVP Conference, San Diego, CA.
Kachanov,  L. M., 1958, “Time of the Rupture Process Under Creep Conditions,” Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, Metall. Topl., 8, pp. 26–31.
Rabotnov, Y. N., 1969, “Creen problems in structural members,” North Holland.
Lemaitre, J., and Chaboche, J. L., 1985, “Mécanique des matériaux solides,” Dunod.
Bergheau, J. M., Mottet, G., and Débordes, O., 1998, “Intégration numérique de lois de comportement élastoplastique endommageable et applications,” Revue Européenne des Eléments Finis, Vol. 7, No. 6, Editions Hermes, pp. 681–708.
Matthies,  H., and Strang,  G., 1979, “The Solution of Nonlinear Finite Element Equations,” Int. J. Numer. Methods Eng., 14, pp. 1613–1626.

Figures

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Geometry and loading details of the cylinder used in the analysis
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Radial displacement at the external surface
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Hoop stress at the internal surface
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Hoop stress at the internal surface (zoom)
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Axial stress at the external surface
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Axial stress at the external surface (zoom)
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Equivalent stress at the external surface
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Equivalent stress at the external surface (zoom)
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Damage at the external surface
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Damage at the external surface (zoom)
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Larson-Miller parameter as a function of stress

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