A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipe [PDF]
, 2020 In the paper, the effect of welding technology on the microstructure and mechanical properties of girth welded joints was presented. Metallographic examinations based on light microscopy and SEM were conducted on girth welded joints of API X70 steel pipe.
De Waele, Wim +6 more
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Automatic detection of welding defects using the convolutional neural network [PDF]
, 2019 Quality control of welded joints is an important step before commissioning of various types of metal structures. The main obstacles to the commissioning of such facilities are the areas where the welded joint deviates from acceptable defective standards.
Altman +13 more
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Determination of the dimensions of the heat-affected zone in welding gas pipeline components [PDF]
, 2013 Analytical decisions supported by experimental data were used to determine the dependences for calculating the size of the heat-affected zone (HAZ) in multilayer welding of circumferential joints in transmission gas pipelines.
Grigoriev, V. A. +4 more
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Fatigue life estimation in welded joints under multiaxial loadings [PDF]
, 2009 Welded joints are frequently locations for cracks initiation and propagation that may cause fatigue failure of engineering structures. Biaxial or triaxial stress-strain states are present in the vicinity of welded joints, due to local geometrical ...
Carpinteri, Andrea +2 more
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High-resolution 3D weld toe stress analysis and ACPD method for weld toe fatigue crack initiation [PDF]
, 2019 Weld toe fatigue crack initiation is highly dependent on the local weld toe stress-concentrating geometry including any inherent flaws. These flaws are responsible for premature fatigue crack initiation (FCI) and must be minimised to maximise the fatigue
Chaudhuri, Somsubhro +3 more
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Determination of stress concentration factors in offshore wind welded structures through a hybrid experimental and numerical approach [PDF]
, 2019 Offshore wind turbine (OWT) monopile support structures generally consist of steel cans connected together through circumferential welding joints. One critical factor to evaluate the localised increase in stresses is the stress concentration factor (SCF)
Brennan, Feargal +3 more
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Fatigue crack growth rates for offshore wind monopile weldments in air and seawater: SLIC inter-laboratory test results [PDF]
, 2016 The majority of fatigue crack growth (FCG) data sets available on steels in air and seawater environments are several decades old and may not be appropriate for structural integrity assessment of offshore wind turbine foundations, which are fabricated ...
Brennan, Feargal P. +2 more
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On the use of the Peak Stress Method for the calculation of Residual Notch Stress Intensity Factors: a preliminary investigation [PDF]
, 2017 Residual stresses induced by welding processes significantly affect the engineering properties of structural components. If the toe region of a butt-welded joint is modeled as a sharp V-notch, the distribution of the residual stresses in that zone is ...
BERTO, FILIPPO +5 more
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Optimising the laser-welded butt-joints of medium carbon steel using RSM [PDF]
, 2005 The optimization capabilities in design-expert software were used to optimise the keyhole parameters (i.e. maximize penetration (P) and minimise the heat input, width of welded zone, (W) and width of heat affected zone (WHAZ)) in CW CO2 laser butt ...
Benyounis, Khaled +2 more
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The effect of aging time on mechanical and microstructure properties of aa6061 joints welded by gas tungsten arc welding [PDF]
, 2018 This research examines the influence of heat treatment on mechanical properties and microstructure of AA6061 aluminium alloy welded with butt groove method, by using Gas Tungsten Arc Welding (GTAW) method.
Ahmad, R
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