Recent research on welding distortion prediction in thin plate fabrication by means of elastic FE computation

Wang, Jiangchao; Yuan, Hua; Ma, Ninshu; Murakawa, Hidekazu

doi:10.1016/j.marstruc.2016.02.004

Cited by 43 publications

(16 citation statements)

References 12 publications

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“…Based on the inherent strain theory first proposed by Fig. 5 Welding-induced bending distortion in a long pipe Ueda et al 18) , the welding-induced residual stresses and distortions are considered to be produced by the inherent strain 19) . In structural analysis, the total strain produced by the welding process can be divided into multiple strain components, as shown in Eq.…”

Section: Definition Of Inherent Strainmentioning

confidence: 99%

Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method

Wang

Kim

2021

Journal of Welding and Joining

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Distortion prediction of a welded structure is an important way to improve work efficiency and ensure product quality during the fabrication process. Recently, the widely used approaches for evaluating residual deformation include the thermo-elastic-plastic finite element method (TEP-FEM) and the inherent strain method (ISM). The former can accurately simulate the entire welding process with excessive computational time, whereas the latter has great potential in the fast prediction of residual distortion in complex welded components. In this study, an equivalent thermal strain method based on inherent strain theory was proposed to predict residual deformation of the multi-seam welded pipe structures. Moreover, a full 3D TEP-FEM model was also developed to estimate the distributions of inherent strain in longitudinal (L-seam) and circumferential (C-seam) welds. To validate the accuracy of the proposed ISM, the welding distortion predicted by the proposed ISM is compared with the experimental data and TEP-FEM simulation results. It is discovered that the proposed ISM can be used to accurately predict welding-induced deformation in multi-seam welded pipe structures. Furthermore, compared with TEP-FEM simulation, the significant advantage of this approach is that the computing efficiency can be increased by about 50 times.

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Section: Definition Of Inherent Strainmentioning

confidence: 99%

Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method

Wang

Kim

2021

Journal of Welding and Joining

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“…The most accurate method, transient moving-arc thermo-elastic-plastic method, was developed to permit simulating the entire physical process of welding which includes metal deposition, melting/re-melting, larger deformation, strain hardening, and phase transformation [132][133][134]. Simplified methods such as lumppass modeling method [135], traveling temperature function method [136,137], inherent-strain method [138][139][140][141], shrinkage force method, and local-to-global assemble method [142][143][144] were developed to provide a quick solution for predicting welding-induced distortions.…”

Section: Numerical Analysis Of Structuresmentioning

confidence: 99%

Advanced Welding Manufacturing: A Brief Analysis and Review of Challenges and Solutions

Zhang

Yang

Wei

et al. 2020

Journal of Manufacturing Science and Engineering

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Welding is a major manufacturing process that joins two or more pieces of materials together through heating/mixing them followed by cooling/solidification. The goal of welding manufacturing is to join materials together to meet service requirements at lowest costs. Advanced welding manufacturing is to use scientific methods to realize this goal. This paper views advanced welding manufacturing as a three step approach: (1) pre-design that selects process and joint design based on available processes (properties, capabilities, and costs); (2) design that uses models to predict the result from a given set of welding parameters and minimizes a cost function for optimizing the welding parameters; (3) real-time sensing and control that overcome the deviations of welding conditions from their nominal ones used in optimizing the welding parameters by adjusting the welding parameters based on such real-time sensing and feedback control. The paper analyzes how these three steps depend on process properties/capabilities, process innovations, predictive models, numerical models for fluid dynamics, numerical models for structures, real-time sensing, and dynamic control. The paper also identifies the challenges in obtaining ideal solutions and reviews/analyzes the existing efforts toward better solutions. Special attention and analysis have been given to (1) gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) as benchmark processes for penetration and materials filling; (2) keyhole plasma arc welding (PAW), keyhole-tungsten inert gas (K-TIG), and keyhole laser welding as improved/capable penetrative processes; (3) friction stir welding (FSW) ......

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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 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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Recent research on welding distortion prediction in thin plate fabrication by means of elastic FE computation

Cited by 43 publications

References 12 publications

Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method

Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method

Advanced Welding Manufacturing: A Brief Analysis and Review of Challenges and Solutions

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

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