The French Utility EDF's integrity assessment and maintenance strategy for pressure vessel life management is introduced. Under this approach, the margins on different parameters such as toughness and crack size are evaluated through nondestructive in-service inspection of the wall and major surveillance programs of the vessels, and elastic computations coupled with finite element elastoplastic computations. Structural integrity analyses carried out on PWR pressure vessels indicate vessel lifetimes of at least 40 years.
PWR vessel life management: French approach for integrity assessment and maintenance strategy
1998
8 Seiten, 5 Quellen
Aufsatz (Konferenz)
Englisch
Reassessment of French Reactor Pressure Vessel integrity
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