Applications of inherent strain and interface element to simulation of welding deformation in thin plate structures

Murakawa, Hidekazu; Deng, Dean; Ma, Ninshu; Wang, Jiangchao

doi:10.1016/j.commatsci.2011.06.040

Cited by 105 publications

(39 citation statements)

References 7 publications

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“…Considering transverse shear strain components, the total strains could be expressed as follows [16]. …”

Section: Welding Distortion Prediction In Thin Plate Fabrication By Mmentioning

confidence: 99%

“…Therefore, the inherent strain method is an alternative for estimating the overall welding distortions [13][14][15]. It is noted that the inherent strain method induces the transient effect of the welding process to inherent strain key parameters, avoiding the transient analysis of numerical simulation and the computational difficulty in high temperature, reducing the calculation time and obtaining the residual stress and deformation value with a certain degree of accuracy [16]. Few studies have explored the welding multi-physics mechanism in detail despite its high efficiency in calculating the size and distribution of inherent strain with a certain accuracy in the numerical simulation of complex welded structures, especially for fillet joint angular distortion.…”

Section: Introductionmentioning

confidence: 99%

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Welding Distortion Prediction in 5A06 Aluminum Alloy Complex Structure via Inherent Strain Method

Zeng

Yang

et al. 2016

Metals

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Finite element (FE) simulation with inherent deformation is an ideal and practical computational approach for predicting welding stress and distortion in the production of complex aluminum alloy structures. In this study, based on the thermal elasto-plastic analysis, FE models of multi-pass butt welds and T-type fillet welds were investigated to obtain the inherent strain distribution in a 5A06 aluminum alloy cylindrical structure. The angular distortion of the T-type joint was used to investigate the corresponding inherent strain mechanism. Moreover, a custom-designed experimental system was applied to clarify the magnitude of inherent deformation. With the mechanism investigation of welding-induced buckling by FE analysis using inherent deformation, an application for predicting and mitigating the welding buckling in fabrication of complex aluminum alloy structure was developed.

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“…Considering transverse shear strain components, the total strains could be expressed as follows [16]. …”

Section: Welding Distortion Prediction In Thin Plate Fabrication By Mmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Welding Distortion Prediction in 5A06 Aluminum Alloy Complex Structure via Inherent Strain Method

Zeng

Yang

et al. 2016

Metals

View full text Add to dashboard Cite

show abstract

“…Welding of thin plate structures was simulated for distortions which cause an effect in the assembly of the structures. The welding distortion of weldments was estimated by simulation with two step computational approach by a thermo-elastic-plastic finite element method and an elastic finite element method [6][7]. The two and three-dimensional welding simulations on stainless steel tube SUS304 by GTWA was carried out with ABAQUS finite element analysis for understanding the thermal behavior of the material transient condition that leads to residual stress in the simulated structures [8].…”

Section: Introductionmentioning

confidence: 99%

Temperature Field and Residual Stress of Butt Welding for IN182 Plate

Vemanaboina¹,

Raju²,

Sreenivas³

2018

IJET

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The welding process is a nonlinear phenomenon in nature which leads to deformation and residual stresses in weldments. To overcome the structural changes in the weldments the computational packages can be effectively used for analyzing the changes in its life. Inconel superalloys have excellent mechanical properties and are used in the industrial applications. The present simulation is carried out for single pass butt-joint. Simulation studies are used for effective selection of process parameters for improving mechanical properties in the weld structures. In this work, coupled thermo-mechanical simulation process was carried out for predicting the temperatures, distortion and residual stress distribution in the weldments using Finite element analysis at the transverse direction on the welded surface.

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“…It is necessary to take measures to decrease deformation before welding or correct it after welding due to its adverse effect on accuracy of manufacturing and assembling [4][5][6] . However, it is not an easy thing to straightening deformation of large sized structures [7][8][9] . Flame heating, which is widely used in industrial production, is one of the main methods to correct welding deformation.…”

Section: Introductionmentioning

confidence: 99%

Experimental Parameter Calculation of Welding Deformation Correction by Flame Straightening

Zhao¹,

Huang²,

Miao³

2017

dtmse

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Abstract. In order to study the method of oxygen-acetylene flame straightening parameter design for welding deformation correction, flame straightening experiment and calculation of welding deformation of the T-shaped structure of double bottom plate and stiffened plate on the 110000 tons refined oil products/crude oil ship are completed. The results show that: Flexure deformation is formed between the two adjacent stiffened plate after welding process; The deformation is largest on the free edge of bottom plate; When the thickness of stiffened plate remains unchanged, smaller thickness of the bottom plate leads to larger the flexural deformation of both bottom plate between stiffened plates and the free edge of the bottom plate. The calculation method of oxygen-acetylene flame parameter based on welding heat input is feasible, and the calculated oxygen-acetylene flame parameters can be used to eliminate flexure deformation of T-shaped structure.

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Applications of inherent strain and interface element to simulation of welding deformation in thin plate structures

Cited by 105 publications

References 7 publications

Welding Distortion Prediction in 5A06 Aluminum Alloy Complex Structure via Inherent Strain Method

Welding Distortion Prediction in 5A06 Aluminum Alloy Complex Structure via Inherent Strain Method

Temperature Field and Residual Stress of Butt Welding for IN182 Plate

Experimental Parameter Calculation of Welding Deformation Correction by Flame Straightening

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