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TECHNICAL PAPERS

Evaluation of the Integrity of PWR Bimetallic Welds

[+] Author and Article Information
Josette Devaux, Gérard Mottet, Jean-Michel Bergheau

Systus International 69485 Lyon Cedex 03, France

Surender K. Bhandari

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

Claude Faidy

EDF/SEPTEN, 69628 Villeurbanne, France

J. Pressure Vessel Technol 122(3), 368-373 (Apr 05, 2000) (6 pages) doi:10.1115/1.556194 History: Received February 01, 2000; Revised April 05, 2000
Copyright © 2000 by ASME
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References

Figures

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Typical bi-metallic joint
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Interactions between physical phenomena (couplings indicated with a dotted line are neglected)
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Mesh (1417 elements, 3708 nodes)—manufacturing procedure—defect location
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Longitudinal stress contours (top: complete simulation; bottom: simplified simulation)
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Hoop stress contours (top: complete simulation; bottom: simplified simulation)
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Comparison between computed and measured longitudinal stresses along the outer surface
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Comparison between computed and measured hoop stresses along the outer surface
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Pressure and temperature evolutions applied during the three stages of the loading
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Mesh of the multi-material CT50 specimen
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Deformed shape of the defect after the opening stage
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Relative displacements of the crack lips (400 μm from the crack tip)
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J values for the different loading steps

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