Results 11 to 20 of about 4,090,931 (280)

Measurement and modelling of the transient thermal-mechanical strain field during GMA welding [PDF]

open access: yes, 2011
The state of residual stress in welded joints is a well-studied topic, and many methodsof residual stress measurement are now available. However, far less is known aboutthe transient strains which occur during the welding process, even though these ...
Colegrove, Paul A.   +3 more
core   +7 more sources

Investigation of thermal techniques to mitigate buckling distortion in welding panels [PDF]

open access: yes, 2012
This thesis describes the advancements of the application of thermal tensioning techniques to different weld geometries in order to eliminate buckling distortion.
Nagy, T.
core   +7 more sources

The effect of vibratory stress on the welding microstructure and residual stress distribution [PDF]

open access: yes, 2001
Previous studies have suggested that weld microstructure may be modified by the presence of static stresses. In this investigation, vibratory stress was applied to mild steel specimens while they were being welded to observe its effect on the residual ...
Waddell, A.J.   +2 more
core   +4 more sources

Finite element analysis of localised rolling to reduce residual stress and distortion [PDF]

open access: yes, 2013
Fusion welding processes cause residual stress due to the uneven heat distribution produced by the moving welding torch. These residual stresses are characterised by a large tensile component in the welding direction.
Cozzolino, Luis D.
core   +6 more sources

Comparison of joining efficiency and residual stresses in laser and laser hybrid welding [PDF]

open access: yes, 2011
Laser welding is a high energy density process, which can produce welds with less energy input and thereby lower residual stress generation compared to arc welding processes.
Colegrove, Paul A.   +14 more
core   +1 more source

Effects of High Toughness and Welding Residual Stress for Unstable Fracture Prevention

open access: yesApplied Sciences, 2020
Unstable fractures generally occur in brittle materials under low-temperature service conditions. Toughness and welding residual stress are the main factors that should be evaluated when defining a brittle crack propagation path. In this study, a rainbow
Gyubaek An, Jeongung Park, Ilwook Han
doaj   +1 more source

Residual stress evaluation in API 5L X65 girth welded pipes joined by friction welding and gas tungsten arc welding

open access: yesJournal of Materials Research and Technology, 2019
The present study compared the residual stress states in friction welded pipes of API 5L X65 to those achieved by gas tungsten arc welding (GTAW). X-ray diffraction (XRD) was used to assess residual stresses.
Carlos Alexandre Pereira de Moraes   +4 more
doaj   +1 more source

Effect of Transverse Restraint on Welding Residual Stress in V-Groove Butt Welding

open access: yesMetals, 2022
When evaluating the safety of steel structures, welding residual stress is used as the secondary load and if there is any restraint, the yield stress of the base material is used for secondary load, regardless of the size of the restraint.
Jeongung Park   +3 more
doaj   +1 more source

Nondestructive Evaluation of Welding Residual Stresses in Dissimilar Welded Pipes [PDF]

open access: yesJournal of Nondestructive Evaluation, 2013
This paper investigates the nondestructive capability of ultrasonic waves in residual stress evaluation of dissimilar welded pipes. Longitudinal critically refracted (L CR ) waves are employed to measure the residual stresses in a pipe-pipe joint of stainless steel 304 and carbon steel A106. Measuring the acoustoelastic constant is usually accomplished
Javadi, Yashar   +3 more
openaire   +4 more sources

Numerical Study on Welding Residual Stress Distribution of Corrugated Steel Webs

open access: yesMetals, 2022
Residual stresses are an inevitable result of the welded fabrication process of corrugated steel webs (CSWs), resulting in structures with high and unpredictable stress fields, causing unexpected failures.
Haiping Zhang   +6 more
doaj   +1 more source

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