This contribution deals with the complex temperature profiles that are generated by the welding process in the intersection region of thick walled, cylinder-cylinder junctions. These affect material microstructure, mechanical properties and residual stresses. Knowledge of the thermal history and temperature distributions are thus critical in developing control schemes for acceptable residual stress distributions to improve in-service component behavior. A comprehensive study of 3D temperature distributions in a stainless steel tee branch junction during a multipass welding process is presented. A newly developed partitioning technique has been used to mesh the complex intersection areas of the welded junction. Various phenomena associated with welding, such as temperature dependent material properties, heat loss by convection and latent heat have been taken into consideration. The temperature distribution at various times after deposition of certain passes and the thermal cycles at various locations are reported. The results obtained in this study will be used for on-going and future analysis of residual stress distributions. The meshing technique and modeling method can also be applied to other curved, multipass welds in complex structures.
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ASME/JSME 2004 Pressure Vessels and Piping Conference
July 25–29, 2004
San Diego, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4668-7
PROCEEDINGS PAPER
FE Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction Available to Purchase
Wei Jiang,
Wei Jiang
University of Wolverhampton, Telford, UK
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Kadda Yahiaoui,
Kadda Yahiaoui
University of Wolverhampton, Telford, UK
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Chang J. Wang,
Chang J. Wang
University of Wolverhampton, Telford, UK
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Frank R. Hall,
Frank R. Hall
University of Wolverhampton, Telford, UK
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Tahar Laoui
Tahar Laoui
University of Wolverhampton, Telford, UK
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Wei Jiang
University of Wolverhampton, Telford, UK
Kadda Yahiaoui
University of Wolverhampton, Telford, UK
Chang J. Wang
University of Wolverhampton, Telford, UK
Frank R. Hall
University of Wolverhampton, Telford, UK
Tahar Laoui
University of Wolverhampton, Telford, UK
Paper No:
PVP2004-2283, pp. 93-99; 7 pages
Published Online:
August 12, 2008
Citation
Jiang, W, Yahiaoui, K, Wang, CJ, Hall, FR, & Laoui, T. "FE Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. High Pressure Technology: Innovations and Advances in High Pressure Technology; 12th Annual ASME/PVPD 2004 Student Paper Competition. San Diego, California, USA. July 25–29, 2004. pp. 93-99. ASME. https://doi.org/10.1115/PVP2004-2283
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