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8. Other potential damage
The risk of creep is considered to be excluded if the limitations on the working temperature of materials given in Appendix Zl of the RCC-M, which gives the mechanical properties that can be used for dimensioning, are respected. For higher-temperature applications, as encountered in fast-neutron reactors, the RCC-MR includes provisions for taking account of creep, relaxation and fatigue-creep interaction, which are outside the scope of the present dossier.
Other effects can affect the structure's overall or local behavior.
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In terms of overall behavior, the damage modes likely to affect the targeted safety margins may result from wear, generalized corrosion, erosion-cavitation or corrosion-erosion mechanisms.
Wear phenomena can occur at the level of parts in contact, in the presence of relative...
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Other potential damage
Conclusion
Documentation sources
Text references
Websites
ASME American Society of Mechanical Engineers http:/;/;www.asme.org
AFCEN Association Française pour les règles de conception et de construction des Chaudières Électro-Nucléaires (French association for the design and construction of electro-nuclear boilers) http:/;/;www.afcen.com
...Regulations
Arrêté du 12 décembre 2005 applicable aux Équipements Sous Pression Nucléaires (ESPN) ; JO de la République Française, January 22, 2006.
Arrêté du 26 février 1974 portant application de la réglementation des appareils à pression aux chaudières nucléaires à eau. Collection of texts published in "Sûreté Nucléaire en France". Les éditions des Journaux Officiels.
Directive 97/;23/;EC...
Standards
- Récipients sous pression non soumis à la flamme. - NF EN 13445 -
- Tuyauteries industrielles métalliques. - NF EN 13480 -
- Chaudières à tubes d'eau et installations auxiliaires. - NF EN 12952 -
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