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Strength of Materials
Erschienen in: Strength of Materials 3/2017

06.10.2017 | SCIENTIFIC AND TECHNICAL SECTION

Improving the Computational Analysis of Stress-Strain State and Fracture Resistance of Welded Joints Between Coolant Headers and PGV-1000M Steam Generator Vessel of Nuclear Power Station

verfasst von: V. V. Kharchenko, A. Yu. Chirkov, S. V. Kobel’skii, V. I. Kravchenko

Erschienen in: Strength of Materials | Ausgabe 3/2017

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Abstract

The authors have outlined methodological principles and a procedure of performing the updated analysis of stress-strain state and fracture resistance of welded joints between coolant headers and PGV-1000M steam generator vessel. The paper gives the results of the elastic-plastic fracture resistance analysis of a welded joint containing variously shaped surface defects, in modeling a design operation cycle and an accident situation. According to the data obtained, the deformation loading history, residual technological stresses, and inclusion of surface damages have a significant effect on the design assessment of fracture resistance of a welding joint. It has been shown that the conventional linearly elastic calculation of fracture resistance of welded joints has an inadequate degree of conservatism and thus overestimates strength of the joints.
Nächster Artikel Damage Contribution to the Assessment of the Stress-Strain State of Structure Elements

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Metadaten
Titel
Improving the Computational Analysis of Stress-Strain State and Fracture Resistance of Welded Joints Between Coolant Headers and PGV-1000M Steam Generator Vessel of Nuclear Power Station
verfasst von
V. V. Kharchenko
A. Yu. Chirkov
S. V. Kobel’skii
V. I. Kravchenko
Publikationsdatum
06.10.2017
Verlag
Springer US
Erschienen in
Strength of Materials / Ausgabe 3/2017
Print ISSN: 0039-2316
Elektronische ISSN: 1573-9325
DOI
https://doi.org/10.1007/s11223-017-9875-3

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