Finite Element Predictions of Temperature Distributions in a Multipass Welded Piping Branch Junction
- 1 February 2005
- journal article
- Published by ASME International in Journal of Pressure Vessel Technology
- Vol. 127 (1), 7-12
- https://doi.org/10.1115/1.1845450
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.Keywords
This publication has 10 references indexed in Scilit:
- Temperature distribution and residual stresses due to multipass welding in type 304 stainless steel and low carbon steel weld padsInternational Journal of Pressure Vessels and Piping, 2001
- Finite Element Modelling of Residual Stress in Pipe WeldsStrain, 2001
- Residual Stress Analyses of a Multi-Pass Girth Weld: 3-D Special Shell Versus Axisymmetric ModelsJournal of Pressure Vessel Technology, 2000
- Temperature distribution during multipass welding of platesInternational Journal of Pressure Vessels and Piping, 1998
- A parametric study of residual stresses in multi-pass butt-welded stainless steel pipesInternational Journal of Pressure Vessels and Piping, 1998
- Finite element analysis and simulation of welding: a bibliography (1976 - 1996)Modelling and Simulation in Materials Science and Engineering, 1996
- Residual Stresses in Cylinder Girth Butt WeldsPublished by Society of Petroleum Engineers (SPE) ,1985
- The Effect of Pipe Thickness on Residual Stresses due to Girth WeldsJournal of Pressure Vessel Technology, 1982
- Computation of Residual Stresses due to Multipass Welds in Piping SystemsJournal of Pressure Vessel Technology, 1979
- A Finite-Element Model for Residual Stresses and Deflections in Girth-Butt Welded PipesJournal of Pressure Vessel Technology, 1978