Prediction of welding deformation in stiffened structure by introducing thermo-mechanical interface element

Li, Yongzhi; Wang, Kaiyun; Jin, Yujing; Xu, Mengjia; Lü, Hao

doi:10.1016/j.jmatprotec.2014.10.012

Cited by 27 publications

(9 citation statements)

References 17 publications

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“…The thermal modelling takes an important place for an accurate prediction of the welding distortions [2]. The development of thermal modelling started in the 1940s by Rosenthal, and these studies gained speed in the 1980s thanks to powerful computer processors.…”

Section: Thermal Modellingmentioning

confidence: 99%

“…While inhomogeneous temperature distributions cause thermal expansion and contraction, the phase change which result in plastic deformations lead to both distortions and residual stresses [1]. Both situations have negative impacts on the manufacturing accuracy and desired properties of welded structures [2]. If the distortions can be accurately predicted in the design stage, it would benefit to achieve dimensionally capable and stable products.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Finite Element Simulation and Experimental Validation of Welding Distortion of Fillet Welded T-joints

Eren

Asnaz

2022

Politeknik Dergisi

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Computational modeling of distortion can minimize costly distortion corrections, and improve quality.  The accuracy of this approach is highly dependent on the modeling of the heat source.  The angular distortion found to be affected by welding speed, current, material thickness, penetration depth and pre-welding gap between plates. However, although it is said that there is a relationship between all inputs, there is no method to formulate how much they cause distortion.  Quantifying the weld distortion is a challenging procedure. An adequate way to validate this type of study is to use precision measurement tools such as optical 3D scanner and coordinate measuring machine (CMM).

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Section: Thermal Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finite Element Simulation and Experimental Validation of Welding Distortion of Fillet Welded T-joints

Eren

Asnaz

2022

Politeknik Dergisi

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“…Welding deformations/distortions can be tested by performing the actual welding process or using FEM-based numerical simulations (FEM -Finite Element Method). In many sectors of industry, the design process is increasingly often supported by FEM-based solutions [10][11][12] [ [13][14][15][16][17][18][19][20][21][22][23][24]. The above-named approach makes it possible to verify the correctness of a design before its implementation.…”

Section: Welding Stresses and Strains -State Of The Artmentioning

confidence: 99%

“…The authors paid attention to the issue of applying FEM when determining welding distortions in large-sized structures. Despite the complexity of the welding process, it is possible to perform the thorough thermomechanical FEM-based analysis, yet, because of the significant demand for computing power in such analyses, they are usually limited to small elements [17,18,21,22]. Similarly, the modelling and calculations concerned with large structures are time-consuming.…”

Section: Welding Stresses and Strains -State Of The Artmentioning

confidence: 99%

The FEM-based Numerical Analysis of Welding Distortions in Spatial-Flat Elements of Large-Sized Welded Structures

Pikuła

Pfeifer

Niagaj

2019

eBIS

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The issue of welding distortions concerns both large welded structures such as bridges, storage tanks and elements of welded building structures as well as small and precise elements. Particularly susceptible to welding distortions are thin-walled structures, in which hard-to-predict welding distortions are responsible for serious technical problems. This paper presents the results concerning the welding of spatial and flat elements used in large-sized welded structures in terms of welding distortions. Due to their geometry, large welded structures may be the source of complex welding distortions, e.g. corrugations. The research-related works discussed in the article were carried out using the finite element method (FEM). The validation of FEM model of the welding process was performed using an optical system measuring welding distortions of an actual structure.

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“…The influence of material property simplifications on temperature fields, residual stress fields and plate deflections in T-joint fillet welded joints are studied by Bhatti et al [22] and Peric et al [23]. Li et al [24] developed an interface element to describe effective penetrations, fillet weld sizes and the contact relationship between plates and stiffeners during welding distortion simulations.…”

Section: S868mentioning

confidence: 99%

A simplified engineering method for a T-joint welding simulation

et al. 2018

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In the framework of this study, a hybrid sequential thermo-mechanical finite element analysis of T-joint fillet welding is performed. In the thermal analysis, the element birth and death technique is applied to simulate a weld filler deposition, while a mechanical analysis is performed simultaneously to avoid possible problems due to large displacements induced by large strains. The calculated plate deflections are compared with the experimental measurements while the obtained residual stresses are compared with the analytical solution from the literature. The simulated results demonstrate that the proposed method can be effectively used to predict the residual stresses and distortions induced by the T-joint welding of two plates.

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Prediction of welding deformation in stiffened structure by introducing thermo-mechanical interface element

Cited by 27 publications

References 17 publications

Finite Element Simulation and Experimental Validation of Welding Distortion of Fillet Welded T-joints

Finite Element Simulation and Experimental Validation of Welding Distortion of Fillet Welded T-joints

The FEM-based Numerical Analysis of Welding Distortions in Spatial-Flat Elements of Large-Sized Welded Structures

A simplified engineering method for a T-joint welding simulation

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