Finite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction

2.50
Hdl Handle:
http://hdl.handle.net/2436/23592
Title:
Finite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction
Authors:
Jiang, Wei; Yahiaoui, Kadda; Hall, Frank Richard
Abstract:
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.
Citation:
Journal of Pressure Vessel Technology, 127(1): 7-12
Publisher:
American Society of Mechanical Engineers (ASME)
Journal:
Journal of Pressure Vessel Technology
Issue Date:
2005
URI:
http://hdl.handle.net/2436/23592
DOI:
10.1115/1.1845450
Additional Links:
http://scitation.aip.org/journals/doc/ASMEDL-home/
Type:
Article
Language:
en
Description:
This paper has informed industry of the capabilities of advanced simulation to better understand and improve the manufacture of welded joints; in turn, to improve the lifetime and safety of high temperature structures used in the petrochemical and power generation industries. This paper was also presented at the American Society of Mechanical Engineers (ASME) conference in San Diego, USA, and was awarded the best paper prize.
ISSN:
00949930
Appears in Collections:
Engineering and Technology

Full metadata record

DC FieldValue Language
dc.contributor.authorJiang, Wei-
dc.contributor.authorYahiaoui, Kadda-
dc.contributor.authorHall, Frank Richard-
dc.date.accessioned2008-04-16T14:59:10Z-
dc.date.available2008-04-16T14:59:10Z-
dc.date.issued2005-
dc.identifier.citationJournal of Pressure Vessel Technology, 127(1): 7-12en
dc.identifier.issn00949930-
dc.identifier.doi10.1115/1.1845450-
dc.identifier.urihttp://hdl.handle.net/2436/23592-
dc.descriptionThis paper has informed industry of the capabilities of advanced simulation to better understand and improve the manufacture of welded joints; in turn, to improve the lifetime and safety of high temperature structures used in the petrochemical and power generation industries. This paper was also presented at the American Society of Mechanical Engineers (ASME) conference in San Diego, USA, and was awarded the best paper prize.en
dc.description.abstractThis 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.en
dc.language.isoenen
dc.publisherAmerican Society of Mechanical Engineers (ASME)en
dc.relation.urlhttp://scitation.aip.org/journals/doc/ASMEDL-home/en
dc.subjectWelding processen
dc.subjectTemperature profilesen
dc.subjectWelded jointsen
dc.subjectMicrostructureen
dc.subjectResidual stressen
dc.subjectMechanical propertiesen
dc.subjectHigh temperature structuresen
dc.titleFinite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junctionen
dc.typeArticleen
dc.identifier.journalJournal of Pressure Vessel Technologyen
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