Engineering Version of Local Approach to Fracture and its Applicationnfor RPV Lifetime Prediction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00509794" target="_blank" >RIV/68081723:_____/19:00509794 - isvavai.cz</a>
Result on the web
<a href="https://www.scientific.net/KEM.810.15" target="_blank" >https://www.scientific.net/KEM.810.15</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.810.15" target="_blank" >10.4028/www.scientific.net/KEM.810.15</a>

Result language
angličtina
Original language name
Engineering Version of Local Approach to Fracture and its Applicationnfor RPV Lifetime Prediction
Original language description
Theoretical basis of the simplified (engineering) version of Local Approach (LA) tonfracture is summarized, and the possibility of using this version to predict the lifetime of RPV steelsnis demonstrated. The concept of “effective” volume, fV , within which stresses and strains arenuniformly distributed, but the magnitude of the probability of cleavage initiation are equal to theirnreal values at given value of IC K , underlies the proposed engineering version of LA. A functionnwas selected to describe the temperature dependence of local cleavage stress, and a calibrationnprocedure was proposed for determining the constants in this dependence from the results of tests ofnsurveillance specimens. For weld metal of WWER-1000 reactors the dependences of brittle strengthnon fluence were obtained, and the maximum permissible fluence values were determined. It isnshown that in addition to the radiation hardening, the radiation-induced reduction in the level ofnbrittle strength, MC R , has a significant effect on the radiation service life of reactor pressure vesselnsteel.
Czech name
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Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
New Methods of Damage and Failure Analysis of Structural Parts
ISBN
978-3-0357-1447-0
ISSN
1013-9826
e-ISSN
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Number of pages
6
Pages from-to
15-20
Publisher name
Trans Tech Publication
Place of publication
Zurich
Event location
Ostrava
Event date
Sep 10, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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