Analysis of welding residual stress formation behavior during circumferential TIG welding of a pipe

Wu, Chunbiao; Kim, Jae-Woong

doi:10.1016/j.tws.2018.09.020

Cited by 35 publications

(19 citation statements)

References 14 publications

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“…in 1971 4) . Over the last two decades, a large amount of TEP-FEM models have developed to accurately predict welding deformation in various kinds of welded structures with experiment verification [5][6][7][8][9] . D. Deng et al 5) presented a numerical model based on thermal elastic plastic finite element method to investigate welding distortion in low carbon steel thin-plate bead-on joints.…”

Section: Introductionmentioning

confidence: 99%

“…C. Wang et al 6) developed a more accurate model to predict angular distortion and longitudinal bending of the T-joint weld. A three-dimensional TEP-FEM numerical model has been established to simulate welding process during single-pass welding of pipes proposed by C. Wu et al 8) . Experiments were also carried out to verify all of the FE numerical model.…”

Section: Introductionmentioning

confidence: 99%

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Review on Mitigation of Welding-Induced Distortion Based on FEM Analysis

Kim

2020

Journal of Welding and Joining

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Welding distortion is an unavoidable issue due to localized expansion and contraction during the heating and cooling cycles, and has a negative effect on the fabrication process. However, mitigating weld distortion to meet product requirements is a challenging task, because welding shrinkage can't be prevented, only controlled. This paper provides a comprehensive literature review of various techniques to reduce and optimize the deformation induced by welding in the design stage and manufacturing process. Finite element numerical analysis methods are usually employed to predict welding distortion, and can cost less than actual experiments. The review of these approaches is useful to fully understand the main mechanisms used to mitigate weldinginduced distortion, and for choosing the most suitable method to minimize deformation based on realistic fabrication requirements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review on Mitigation of Welding-Induced Distortion Based on FEM Analysis

Kim

2020

Journal of Welding and Joining

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“…When comparing the two types of connections, the welding connection has the following disadvantages: (1) the quality of field welding is difficult to guarantee, especially for steel tubes with a large diameter, and (2) residual stress is induced in this connection. Residual stress is a major factor that contributes to fatigue damage, stress corrosion cracking and brittle fracture (Obeid et al, 2018; Wu and Kim, 2018). For flanged connections, because there is a large flange, the appearance is not aesthetically pleasing, particularly for architecturally exposed structural steel.…”

Section: Introductionmentioning

confidence: 99%

Structural behaviour of inner set bolted joints in steel tubes under tension

Cao

Zhang

2020

Advances in Structural Engineering

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In this article, the structural behaviour of a new continuous joint of steel tube under tension is systematically studied. Structural analyses of six typical joints under tension are carried out. The experimental set-up and details of the specimens are introduced, followed by descriptions of the results and experimental observations. Based on the experimental results, the main behavioural patterns are discussed and the salient response characteristics related to stress concentration and capacity are examined. An ideal elastoplastic stress–strain relationship, Mises yield criterion and geometric nonlinear finite element analysis model are established, and a detailed description of the modelling assumptions is presented. A large number of finite element parameters are further analysed. The experimental and numerical findings presented in this article offer direct information on the influence of key bearing capacity properties, such as the plugged length of the cross-gusset, the area of the cross-gusset and the area of the cushion-plate, on the main response characteristics. The results also provide essential data for future analytical and design-oriented studies.

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“…This is the reason it become necessary to precisely predict and manage residual stresses in arc welding processes. 1 As the welding process is very complex, it becomes difficult to precisely predict the welding residual stresses. Numerical simulation based upon finite element (FE) technique is a proven helpful tool to capture the accurate temperature distribution and the welding residual stresses in welding technology.…”

Section: Introductionmentioning

confidence: 99%

“…This is the reason it become necessary to precisely predict and manage residual stresses in arc welding processes. 1…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation on residual stresses of stainless steel SS-304 thin welded pipe

Arora

Singh

Brar

2020

Measurement and Control

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The major concern in the high tech industries like oil and petroleum industries, automobiles, aeronautical, and nuclear power plants is the control of the defects like distortion in the welded joints and residual stresses occur due to arc welding on the circumferential joints of the thin pipes. Three-dimensional non-linear thermal and thermomechanical numerical simulations are conducted for the tungsten inert gas welding process of SS-304 stainless steel pipes. In this article, numerical analysis of the distribution of the temperature and the welding residual stress fields induced after the welding is done. Study on the effect of the welding heat input by varying the welding parameters (like welding current and welding speed) based on finite element simulations is conduit to examine the results on the residual stresses which is also called as the ‘locked-in’ stresses. The precision of the finite element model is validated for the welding residual stresses. The intention of this study is to provide the information to verify the validity of ongoing process circumferential manufacturing technology for thin-walled pipes, so to avoid the failure of these kinds of structures which are in service because of these intrinsic stresses.

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Analysis of welding residual stress formation behavior during circumferential TIG welding of a pipe

Cited by 35 publications

References 14 publications

Review on Mitigation of Welding-Induced Distortion Based on FEM Analysis

Review on Mitigation of Welding-Induced Distortion Based on FEM Analysis

Structural behaviour of inner set bolted joints in steel tubes under tension

Numerical simulation on residual stresses of stainless steel SS-304 thin welded pipe

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