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.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:d120-qucosa-28238 |
| Date | 31 March 2010 |
| Creators | Abendroth, Martin, Altstadt, Eberhard |
| Contributors | Forschungszentrum Dresden-Rossendorf, Institut für Sicherheitsforschung |
| Publisher | Forschungszentrum Dresden |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:report |
| Format | application/pdf |
| Source | Wissenschaftlich-Technische Berichte / Forschungszentrum Dresden-Rossendorf; FZD-474 2007 |
| Relation | dcterms:isPartOf:Wissenschaftlich-technische Berichte ; FZD-474 |
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