Transient and Residual Stresses in a Single-Pass Butt Welded Pipe

Josefson, Lennart; Jönsson, Mikael; Karlsson, Lennart; Karlsson, Rune; Karlsson, Thomas; Lindgren, Lars‐Erik

doi:10.1007/978-94-009-1143-7_83

Cited by 7 publications

(8 citation statements)

References 5 publications

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“…[258]) state better agreement between analysis and measuring results for the simplified model. The number of possible parameter combinations and process variants is almost unlimited in practice.…”

Section: Intelligent Solutionmentioning

confidence: 81%

“…In recent years, the three-dimensional finite element models based on solid elements for transient heat diffusion in welding and related mechanical response have been developed and successfully applied [255][256][257][258][259][260]. The advances in computer technology made this possible but the expense in computer time for one analysis is extremely high.…”

Section: Solid Element Modelmentioning

confidence: 99%

“…The longitudinal residual stresses on the plate surface plotted in Fig. Oddy, Goldak and Dill [257] The circumferential weld in a thin walled pipe (eMn steel, outer diameter 203 mm, thickness 8.8 mm) has been analysed by 10sefson and Karlsson et al [258,259] based on a fully three-dimensional model. The single pass transverse butt weld in a plate strip specimen (gas metal arc welded, V groove, mild steel) has been analysed by Tekriwal and Mazumder [256] based on a solid element model.…”

Section: Solid Element Modelmentioning

confidence: 99%

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Heat Effects of Welding

Radaj

1992

246

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Section: Intelligent Solutionmentioning

confidence: 81%

Section: Solid Element Modelmentioning

confidence: 99%

Section: Solid Element Modelmentioning

confidence: 99%

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Heat Effects of Welding

Radaj

1992

246

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“…Karlsson et al [8] used solid elements and Karlsson [9] used an axisymmetric model to model the welding of this pipe. All these models were compared in the paper by Josefson et al [10]. The results from the different models [6][7][8][9] were consistent and agreed well with measurements except for the residual hoop stress at the surface of the weld.…”

Section: Introductionmentioning

confidence: 83%

Comparison of an axisymmetric and a three-dimensional model for welding and stress relief heat treatment

Alberg¹,

Berglund²

2004

AIP Conference Proceedings

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This work is part of a project dedicated to find accurate and reliable tools for prediction of welding and post weld heat treatment. In other parts of the project, a simulation method for combined welding and heat treatment simulations of the component was developed and different plastic/viscoplastic material models have been compared, these models included effects of phase changes. These simulations were made using an axisymmetric finite element model. The current paper presents welding and heat treatment simulations of the same aerospace component but now using a three-dimensional shell model. The results are compared with the previously used axisymmetric model. The simulations revealed that the two first welds have the greatest influents on a 'key dimension'. From the simulation, it can be concluded that the three-dimensional model give better prediction of the dimension based on measurement performed but not presented here.

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“…Lindgren and Karlsson [10] developed a 3D model using shell elements to study deformation and stresses in welded thin walled pipes. For heat source distribution, analytical solution presented by Rosenthal [11] for moving line heat source in thin plates was used and temperature dependant material model was taken from Karlsson and Josefson [12,13]. Results were compared with [14] and were found in good agreement.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Residual Stresses and Distortion in Welded Pipe-Flange Joint of Different Classes

Abid

2012

IIUMEJ

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Pipe and flange joints are commonly used in petrochemical, nuclear and process industries. Commonly, welding is used to make these joints which produces residual stresses and distortions. These stresses have detrimental effects on the structural integrity and service performance of the welded pipe joints. The objective of this study is to investigate the residual stresses and distortions during Gas Metal Arc Welding of pipe of schedule 40, nominal diameter 200 mm with different ANSI flanges of class numbers 150, 300, 600, 900, 1500, and 2500. Welding parameters including: voltage, current and heat as inputs were selected based on the literature available. The behaviour of the flanges of different classes is also discussed. In addition, the finite element methodology presented, in this paper, can be helpful for developing welding procedures for a range of pipe flange welded joint sizes in order to control the residual stresses and deformations. This will lead to optimised performance during bolt up and operating conditions.ABSTRAK: Paip dan sambungan flan biasanya digunakan dalam industri petrokimia, nuklear dan proses. Kimpalan menghasilkan tegasan sisa dan herotan, yang memberikan kesan yang merbahaya ke atas integriti struktur dan prestasi servis sambungan kimpalan paip. Objektif kajian ini adalah untuk mengkaji tegasan sisa dan herotan ketika kimpalan arka logam gas paip berjadual 40, diameter nominal 200mm dengan flan ANSI yang berbeza kelas # 150, 300, 600, 900, 1500, dan 2500. Parameter kimpalan termasuklah; voltan, arus dan haba input yang dipilih berdasarkan literatur sediada. Kelakuan flan yang berbeza kelas telah dibincangkan. Kaedah elemen finit yang dibentangkan adalah berguna dalam membangunkan prosedur kimpalan bagi julat saiz kimpalan flan paip unutk mengawal tegasan sisa dan canggaan i.e. bagi mengoptimakan prestasi ketika bolt up dan sedang beroperasi.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â KEYWORDS:Â finite element; residual stresses; distortion; welding; pipe-flange joint; different classes

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Transient and Residual Stresses in a Single-Pass Butt Welded Pipe

Cited by 7 publications

References 5 publications

Heat Effects of Welding

Heat Effects of Welding

Comparison of an axisymmetric and a three-dimensional model for welding and stress relief heat treatment

Investigation of Residual Stresses and Distortion in Welded Pipe-Flange Joint of Different Classes

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