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Margolin B.Z.,Federal State Unitary Enterprise | Fomenko V.N.,Federal State Unitary Enterprise | Vakulenko A.A.,Russian Academy of Sciences | Piminov V.A.,Experimental Design Office Gidropress | Chernobaeva A.A.,RAS Research Center Kurchatov Institute
Strength of Materials | Year: 2015

The paper addresses the main methods of predicting the temperature dependence of fracture toughness. The authors have analyzed a system of margins which have to be introduced in order to adequately and conservatively predict this dependence using the results of testing surveillance coupons. A methodology is put forward for determining a margin for spatial nonuniformity of properties of the reactor pressure vessel material, which is based on simultaneous deterministic and probabilistic calculations of brittle fracture resistance of a reactor pressure vessel. © 2015 Springer Science+Business Media New York

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