Residual stresses in welded components can influence the lifetime significantly. Besides experimental methods of residual stress measurements numerical methods of welding simulation are an important tool to determine the whole residual stress field in a component as a basis for lifetime prediction. As examples, the residual stresses in a core shroud of a boiling water reactor (BWR) and in a cladded plate have been investigated. In case of the core shroud postulated cracks in the residual stress field of the weld have been assessed with respect to possible crack corrosion cracking. For the cladded plate, the numerical simulation of the cladding and heat treatment process was accompanied by measurements of temperature, distortions and residual stresses. In the analysis, the temperature dependent material properties as well as the transformation behavior of the ferritic base metal were taken into account. The calculated residual stresses show tensile stresses in the cladding followed by compressive stresses in the base metal that are in agreement with measurements with X-ray diffraction technique.
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ASME 2009 Pressure Vessels and Piping Conference
July 26–30, 2009
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4369-7
PROCEEDINGS PAPER
Numerical Analyses of Residual Stress Fields in Welded Components
Dieter Siegele,
Dieter Siegele
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
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Marcus Brand,
Marcus Brand
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
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Igor Varfolomeev,
Igor Varfolomeev
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
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Jo¨rg Hohe
Jo¨rg Hohe
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
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Dieter Siegele
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
Marcus Brand
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
Igor Varfolomeev
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
Jo¨rg Hohe
Fraunhofer-Institute for Mechanics of Materials, Freiburg, Germany
Paper No:
PVP2009-77243, pp. 347-352; 6 pages
Published Online:
July 9, 2010
Citation
Siegele, D, Brand, M, Varfolomeev, I, & Hohe, J. "Numerical Analyses of Residual Stress Fields in Welded Components." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Prague, Czech Republic. July 26–30, 2009. pp. 347-352. ASME. https://doi.org/10.1115/PVP2009-77243
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