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 in:	Journal of nuclear materials Vol. 459; pp. 122 - 126
Main Authors:	Haušild, Petr, Materna, Aleš, Kytka, Miloš
Format:	Journal Article
Language:	English
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
Online Access:	Get full text
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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