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COVERS WP4 Benchmark 1 Fracture mechanical analysis of a thermal shock scenario for a VVER-440 RPV

This paper describes the analytical work done by modelling and evaluating a thermal shock in a WWER-440 reactor pressure vessel due to an emergency case. An axial oriented semielliptical underclad/surface crack is assumed to be located in the core weld line. Threedimensional finite element models are used to compute the global transient temperature and stress-strain fields. By using a three-dimensional submodel, which includes the crack, the local crack stress-strain field is obtained. With a subsequent postprocessing using the j-integral technique the stress intensity factors KI along the crack front are obtained. The results for the underclad and surface crack are provided and compared, together with a critical discussion of the VERLIFE code.

Identiferoai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:d120-qucosa-28238
Date31 March 2010
CreatorsAbendroth, Martin, Altstadt, Eberhard
ContributorsForschungszentrum Dresden-Rossendorf, Institut für Sicherheitsforschung
PublisherForschungszentrum Dresden
Source SetsHochschulschriftenserver (HSSS) der SLUB Dresden
LanguageEnglish
Detected LanguageEnglish
Typedoc-type:report
Formatapplication/pdf
SourceWissenschaftlich-Technische Berichte / Forschungszentrum Dresden-Rossendorf; FZD-474 2007
Relationdcterms:isPartOf:Wissenschaftlich-technische Berichte ; FZD-474

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