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4. Prevention of buckling
4.1 Definition and mechanisms
The risk of elastic and elastoplastic instability, also known as "buckling", is likely to occur when elastic deformations contribute significantly, through the changes in shape they bring about, to weakening the resistance of an enclosure to the applied loading. A typical case of such damage is the buckling of an enclosure subjected to external pressure, or that of a support subjected to axial compression.
4.2 Rules and criteria
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Prevention of buckling
Prevention of progressive deformation damage
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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