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 three-dimensional 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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e-mail: w.jiang@wlv.ac.uk
e-mail: k.yahiaoui@wlv.ac.uk
e-mail: f.r.hall@wlv.ac.uk
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February 2005
Article
Finite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction
Wei Jiang,
e-mail: w.jiang@wlv.ac.uk
Wei Jiang
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
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Kadda Yahiaoui,
e-mail: k.yahiaoui@wlv.ac.uk
Kadda Yahiaoui
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
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Frank R. Hall
e-mail: f.r.hall@wlv.ac.uk
Frank R. Hall
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
Search for other works by this author on:
Wei Jiang
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
e-mail: w.jiang@wlv.ac.uk
Kadda Yahiaoui
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
e-mail: k.yahiaoui@wlv.ac.uk
Frank R. Hall
School of Engineering and the Built Environment, University of Wolverhampton, Telford, TF2 9NT, United Kingdom
e-mail: f.r.hall@wlv.ac.uk
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division August 24, 2004; revision received September 4, 2004. Review conducted by: S. Zamrik.
J. Pressure Vessel Technol. Feb 2005, 127(1): 7-12 (6 pages)
Published Online: March 15, 2005
Article history
Received:
August 24, 2004
Revised:
September 4, 2004
Online:
March 15, 2005
Citation
Jiang, W., Yahiaoui, K., and Hall, F. R. (March 15, 2005). "Finite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction." ASME. J. Pressure Vessel Technol. February 2005; 127(1): 7–12. https://doi.org/10.1115/1.1845450
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