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ПОРІВНЯННЯ МАЙСТЕР КРИВОЇ З НОРМАТИВНИМ МЕТОДОМ ОЦІНКИ В'ЯЗКОСТІ РУЙНУВАННЯ МЕТАЛУ КОРПУСУ РЕАКТОРА ВВЕР-1000.
- Source :
-
Nuclear Physics & Atomic Energy . 2024, Vol. 25 Issue 1, p58-65. 8p. - Publication Year :
- 2024
-
Abstract
- The paper considers the generalized temperature dependence of the stress intensity factor KJC in the WWER-1000 reactor pressure vessel metal, which was derived based on the surveillance test data for fracture toughness. The consistency of the shape of the Master curve and 95 % upper and lower confidence bounds with the experimental dependence of crack resistance parameters on temperature was studied. From the point of view of the level of conservatism and acceptability, a comparison of the normative curves of fracture toughness according to NPRR (Nuclear Power Rules and Regulations) G-7-002-86 and SOU NNEGC (Standard of organization of Ukraine, National Nuclear Energy Generating Company) 177:2019 with a 5 % confidence bound of the Master curve was carried out. The possibility of using RT0 temperature as a temperature index instead of TK for the normative fracture toughness curve of SOU NNEGC 177:2019 was considered [ABSTRACT FROM AUTHOR]
Details
- Language :
- Ukrainian
- ISSN :
- 1818331X
- Volume :
- 25
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Nuclear Physics & Atomic Energy
- Publication Type :
- Academic Journal
- Accession number :
- 176396920
- Full Text :
- https://doi.org/10.15407/jnpae2024.01.058