Weld-induced residual stresses in a prototype dragline cluster and comparison with design codes

Joshi, Suraj; Semetay, Cumali; Price, John W H; Nied, H. F.

doi:10.1016/j.tws.2009.09.005

Cited by 16 publications

(10 citation statements)

References 15 publications

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“…The local heat-up tends to generate a stress field during the heat-up process, and the stress can easily reach the yield strength locally due to the lower yield strength at elevated temperatures. This process can leave a nonuniform permanent plastic strain field (Joshi et al, 2010). After cool-down, the induced permanent plastic strain field acts as an internal restraint and causes an elastic stress field, which is called the residual stress.…”

Section: Residual Stress Measurementmentioning

confidence: 99%

Finite element analysis of residual stress distribution in a thick plate joined using two-pole tandem electro-gas welding

Hwang

Kim

Lee

2016

Journal of Materials Processing Technology

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Section: Residual Stress Measurementmentioning

confidence: 99%

Finite element analysis of residual stress distribution in a thick plate joined using two-pole tandem electro-gas welding

Hwang

Kim

Lee

2016

Journal of Materials Processing Technology

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“…The analytical solutions [1][2][3][4][5][6] allow us to estimate the searched values and to determine their dependence on various factors quicker, but for more complex problems these solutions are difficult or even impossible to apply. Some problems can be solved only with numerical methods, for instance, the finite element method, which is commonly used [7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Investigation of Temperature and Phase Transformation during SAW Overlaying

et al. 2019

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The article presents the modeling of temporary temperature and phase share calculations during SAW (submerged arc welding) overlaying of steel elements. The input heat of a melted electrode and the heat of direct electric arc impact have been taken into consideration in the temperature field solution. The characteristic areas (fusion, full and incomplete transformation), have been determined by solidus, A3 and A1 temperatures, respectively. The limit temperatures of the phase trandformations during cooling, based on the cooling rate in the temperature range 800–500 °C according to S355 steel time-temperature-transformation welding diagram, have been determined. The JMAK (Johnson–Mehl–Avrami–Kolmogorov) law and KM (Koistinen–Marburger) formula were used in the phase change kinetic description. Theoretical considerations were illustrated with examples of temperature and phase share computations for welding overlaid S355 steel plate. The analysis of the history of changes in temperature and structural components (phases) was carried out based on the results of numerical simulations as well as metallographic examination after SAW overlaying. The dimensions of the HAZ (heat-affected zone), obtained experimentally, and the structure types confirmed the results of the computation.

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“…Such an approach is found in descriptions of temperature fields in welding processes [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15], as well as in the machining processes [16][17][18][19]. In modelling of temperature field during welding dominate two approaches: analytical [1][2][3][4][5][6] and numerical [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

et al. 2018

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Abstract. Analytical model of temporary and residual stresses for butt welding with thorough penetration was described assuming planar section hypothesis and using integral equations of stress equilibrium of the bar and simple Hooke's law. In solution the effect of phase transformations (structure changes and structural strains) has been taken into account. Phase transformations during heating are limited by temperature values at the beginning and at the end of austenitic transformation, depending on chemical composition of steel while the progress of phase transformations during cooling is determined on the basis of TTT-welding diagram. Temperature values at the beginning and at the end of transformation are conditioned by the speed of heating. Kinetics of diffusional transformation is described basing on Johnson-MehlAvrami-Kolmogorov equation, while martensitic transformation, basing on KoistinenMarburger equation. Stresses in elasto-plastic state are determined by iteration, using elastic solutions method with changeable longitudinal modulus of elasticity, conditioned by stress-strain curve. Computations of stress field have been conducted for one-side butt welded of two steel flats made from S235 steel. It has enabled a clear interpretation of influence of temperature field and phase transformation on stresses caused by welding using Submerged Arc Welding (SAW) method.

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Weld-induced residual stresses in a prototype dragline cluster and comparison with design codes

Cited by 16 publications

References 15 publications

Finite element analysis of residual stress distribution in a thick plate joined using two-pole tandem electro-gas welding

Finite element analysis of residual stress distribution in a thick plate joined using two-pole tandem electro-gas welding

Theoretical and Experimental Investigation of Temperature and Phase Transformation during SAW Overlaying

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

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