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Welding residual stress and distortion
1992A characteristic of application-oriented analysis of welding residual stress and distortion is the mainly decoupled representation of the thermal, mechanical and microstructural processes (illustrated by the line arrows in Fig. 3). The basis of stress and distortion analysis is the temperature field during welding, determined numerically or by ...
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The Variability in Weld Residual Stress
Volume 6B: Materials and Fabrication, 2019Abstract Residual stresses resulting from welds are a key consideration in the design and assessment of piping and pressure vessels. As welding is a variable process, the resulting variability in weld residual stress should be accounted for in design and assessment.
H. Cathcart, G. Horne, A. Moffat
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Welding residual stresses: a daily history
Science and Technology of Welding and Joining, 2015Welding is the main joint technology used in steel manufactured products, in particular, in the shipbuilding industry. Recent works report the effect of residual stress redistribution on butt welded plates in a relatively short period after the welding procedures. The phenomenon was investigated by the daily monitoring of the welding residual stresses
T. Gurova +3 more
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Welding Residual Stress and Distortion
2016The panels, subassemblies and assemblies being welded are subjected to thermal cycles of heating followed by cooling. It causes shrinkage forces to develop in the welded panels. The shrinkage forces tend to cause different degrees of distortion.
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Prediction of Weld Residual Stress of Narrow Gap Welds
Transactions of the Korean Society of Mechanical Engineers A, 2010The conventional welding technique such as shield metal arc welding has been mostly applied to the piping system of the nuclear power plants. It is well known that this welding technique causes the overheating and welding defects due to the large groove angle of weld.
Jun-Seog Yang, Nam-Su Heo
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Residual stresses in P91 steel electron beam welds
Science and Technology of Welding and Joining, 2013This paper describes the characterisation of residual stress in electron beam welded P91 ferritic–martensitic steel plates (9 mm thick) by neutron diffraction and contour measurement methods. The novelty of the work lies in revealing the residual stress profile at a fine length scale associated with a ∼1 mm wide fusion zone.
Venkata, K. A +7 more
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Residual Stress Measurements in Autogenous SA508 Steel Welds
Volume 6: Materials and Fabrication, Parts A and B, 2008Engineering integrity assessments for power plant components need to account for the primary loads that arise during service as well as any residual stresses that may be associated with materials processing or fabrication. Welding operations come under particular scrutiny because they introduce substantial residual stresses.
Francis, John +2 more
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Evaluation of Welding Residual Stress in GTAW Tubular Welds
Volume 3: Design and Analysis, 2013The purpose of this study is to evaluate the welding residual stress of the tubular welds with welding pass and restraint conditions. For it, a heat input model for GTA (Gas Tungsten Arc) pulse welding was developed by comparing the molten pool shape and the temperature history in way of the weld obtained by FEA and experiment.
Hyung-Kook Jin +2 more
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Residual Stress Prediction In Letterbox-Type Repair Welds
2007Many researchers over the last two decades have paid attention to predict satisfactorily the residual stresses in weldments. Dong et al [1] inferred that residual stresses in weld repairs typically exhibit strong three-dimensional features, depending on both component and repair geometry. Repair welds are a common way in industry of repairing cracks or
Loukas Keppas +3 more
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