Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments

This article reports on a numerical and experimental investigation to understand and improve computer methods in application of the Goldak model for predicting thermal distribution in submerged arc welding (SAW) of APIX65 pipeline steel. Accurate prediction of the thermal cycle and residual stresses...

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Main Authors: M.R. Nezamdost, Mohammadreza Nekouie Esfahani, S.H. Hashemi, S.A. Mirbozorgi
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Published: 2016
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Online Access:https://hdl.handle.net/2134/20666
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spelling rr-article-95622082016-01-01T00:00:00Z Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments M.R. Nezamdost (7211783) Mohammadreza Nekouie Esfahani (7203539) S.H. Hashemi (7211786) S.A. Mirbozorgi (7211789) Mechanical engineering not elsewhere classified Submerged arc welding (SAW) API X65 steel Thermal cycle Finite element method Goldak model Steel Welding Mechanical Engineering not elsewhere classified This article reports on a numerical and experimental investigation to understand and improve computer methods in application of the Goldak model for predicting thermal distribution in submerged arc welding (SAW) of APIX65 pipeline steel. Accurate prediction of the thermal cycle and residual stresses will enable control of the fusion zone geometry, microstructure, and mechanical properties of the SAW joint. In this study, a new Goldak heat source distribution model for SAW is presented first. Both 2D and 3D finite element models are developed using the solution of heat transfer equations in ABAQUS Standard implicit. The obtained results proved that the 2D axi-symmetric model can be effectively employed to simulate the thermal cycles and the welding residual stresses for the test steel. As compared to the 3D analysis, the 2D model significantly reduced the time and cost of the FE computation. The numerical accuracy of the predicted fusion zone geometry is compared to the experimentally obtained values for bead-on-plate welds. The predictions given by the present model were found to be in good agreement with experimental measurements. 2016-01-01T00:00:00Z Text Journal contribution 2134/20666 https://figshare.com/articles/journal_contribution/Investigation_of_temperature_and_residual_stresses_field_of_submerged_arc_welding_by_finite_element_method_and_experiments/9562208 CC BY-NC-ND 4.0
institution Loughborough University
collection Figshare
topic Mechanical engineering not elsewhere classified
Submerged arc welding (SAW)
API X65 steel
Thermal cycle
Finite element method
Goldak model
Steel
Welding
Mechanical Engineering not elsewhere classified
spellingShingle Mechanical engineering not elsewhere classified
Submerged arc welding (SAW)
API X65 steel
Thermal cycle
Finite element method
Goldak model
Steel
Welding
Mechanical Engineering not elsewhere classified
M.R. Nezamdost
Mohammadreza Nekouie Esfahani
S.H. Hashemi
S.A. Mirbozorgi
Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
description This article reports on a numerical and experimental investigation to understand and improve computer methods in application of the Goldak model for predicting thermal distribution in submerged arc welding (SAW) of APIX65 pipeline steel. Accurate prediction of the thermal cycle and residual stresses will enable control of the fusion zone geometry, microstructure, and mechanical properties of the SAW joint. In this study, a new Goldak heat source distribution model for SAW is presented first. Both 2D and 3D finite element models are developed using the solution of heat transfer equations in ABAQUS Standard implicit. The obtained results proved that the 2D axi-symmetric model can be effectively employed to simulate the thermal cycles and the welding residual stresses for the test steel. As compared to the 3D analysis, the 2D model significantly reduced the time and cost of the FE computation. The numerical accuracy of the predicted fusion zone geometry is compared to the experimentally obtained values for bead-on-plate welds. The predictions given by the present model were found to be in good agreement with experimental measurements.
format Default
Article
author M.R. Nezamdost
Mohammadreza Nekouie Esfahani
S.H. Hashemi
S.A. Mirbozorgi
author_facet M.R. Nezamdost
Mohammadreza Nekouie Esfahani
S.H. Hashemi
S.A. Mirbozorgi
author_sort M.R. Nezamdost (7211783)
title Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
title_short Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
title_full Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
title_fullStr Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
title_full_unstemmed Investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
title_sort investigation of temperature and residual stresses field of submerged arc welding by finite element method and experiments
publishDate 2016
url https://hdl.handle.net/2134/20666
_version_ 1756602220521979904