Identification of neutron irradiation induced strain rate sensitivity change using inverse FEM analysis of Charpy test

A simple methodology how to obtain additional information about the mechanical behaviour of neutron-irradiated WWER 440 reactor pressure vessel steel was developed. Using inverse identification, the instrumented Charpy test data records were compared with the finite element computations in order to...

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Bibliographic Details
Published inJournal of nuclear materials Vol. 459; pp. 122 - 126
Main Authors Haušild, Petr, Materna, Aleš, Kytka, Miloš
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.04.2015
Subjects
Finite element method
Impact strength
Impact tests
Inverse
Nuclear engineering
Nuclear reactor components
Steels
Strain rate sensitivity
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Summary:A simple methodology how to obtain additional information about the mechanical behaviour of neutron-irradiated WWER 440 reactor pressure vessel steel was developed. Using inverse identification, the instrumented Charpy test data records were compared with the finite element computations in order to estimate the strain rate sensitivity of 15Ch2MFA steel irradiated with different neutron fluences. The results are interpreted in terms of activation volume change.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2015.01.024