Surface crack
Analysis of Rayleigh wave interactions for surface crack characterization
... the surface of aluminium bar containing a surface crack, as shown in Figure ...the surface at different inclination angles, θ, and vertical ...
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Estimation of Accuracy for Generation of Realistic Surface Crack Patterns
... Iben, et al., 2009 in [12] presented a method that generated surface crack patterns appearing on materials such as mud, glass and ceramic glaze. To model these phenomena, existing physically based methods ...
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Evaluation of Surface Crack in Resistance Spot Welds of Zn Coated Steel
... nugget surface was propagated at the end of the concave side, starting from the part where stress was concentrated at the interface of the ...the surface crack but increased the diameter to that of ...
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Fatigue Limit Prediction and Estimation for the Crack Size Rendered Harmless by Peening for Welded Joint Containing a Surface Crack
... The material used is low-carbon steel SM490A. The mechanical properties are shown in Table 1. The material was supplied as 20-mm-thick plates, which were butt-welded, as shown in Figure 1(a). Test specimens, as shown in ...
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The 3D Surface Crack-front Constraints in Welded Joints
... Considering the symmetries of geometrical configuration and load, we model only one quarter of bimaterial plate and pipe with semi-elliptical surface cracks (Fig.. [r] ...
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On the cyclic J-integral of a 3D semi elliptical surface crack
... is the stress intensity factor range and C and m are constants. This relationship holds for LEFM properties, however it does not apply to Elastic-Plastic Fracture Mechanics (EPFM) properties since the relationship ...
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On welding residual stresses and their practical inclusion in structural integrity analyses
... the crack growth rates for semi-elliptic inner axial surface crack postulate through weld in as- welded state, they are similar in the sense that in all cases the crack sooner or later grows ...
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PROSIR Round Robin: Probabilistic Structural Integrity of a PWR Reactor Pressure Vessel
... on surface crack estimation for TR1 mainly due to K estimation scheme: using a global stress fitting without any consideration of stress discontinuity at the clad-base metal interface like 2, and with a ...
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Crack detection limits in unit based masonry with terrestrial laser scanning
... Surface crack identification and maximum crack width determination have long played important roles for condition and risk assessment of buildings ...measure crack characteristics ...for ...
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Prediction of PWSCC Growth in Alloy600 Steam Generator Tube using SCC Initiation Model and FE Damage Analysis
... The crack shapes in this sub-section were considered to have constant crack shape ratio 2a/c=1/6, having a straight crack ...different crack depth ratio ...in crack region is ...axial ...
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High Cycle Fatigue Property and Micro Crack Propagation Behavior in Extruded AZ31 Magnesium Alloys
... between surface crack propagation behaviors and microstructures, the surface crack propagation paths were observed in full detail until the crack length reached to about 10 times of the ...
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Analysis of Stress Intensity Factor of Piping using Large Scale Analysis Code ADVentureCluster
... Since the crack geometry is symmetric, 1/4 cylinder model with an inner semi-elliptic surface crack is assumed for finite element analysis, as shown in Fig.. inner se[r] ...
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Different Methods to Detect Fatigue Crack Nucleation and Growth Rate
... for Crack Propagation Evaluation Crack gages are glued at the notch tip area of a dummy sample in order to record crack growth rate during the ...the crack propagation. The propagation of the ...
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Microstructural modelling of fatigue in layered bearing architectures
... potential crack initiation sites, though the relationship between particle geometry and arrangement/clustering was found to be ...dominant crack when combined with a Hobson type growth model based upon ...
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Crack Surface Energy: Temperature and Force Dependence
... This paper addresses the temperature/force dependence of surface crack tension, which will be calculated on the basis of a quasi-one-dimensional model of a tensile crack. The paper is organized as ...
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Coupled Thermoelastic Analysis of Semi-elliptical Crack in Thick-walled Cylinder Considering Green-Lindsay and Green-Naghdi Type II Theories
... half-elliptical crack by using finite element meth- ...the surface crack turns into a half-elliptical shape after repeated ...of crack surface to cal- culate the weight function of SIFs ...
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Stress intensity factors under combined bending and torsion moments
... Surface crack in notched round bars under cyclic tenrioli and bending, Journalo/Fafigue, 1528:251-260.[r] ...
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Delaying Effect of High Density Electric Current on Fatigue Crack Growth in A6061 T6 Aluminum Alloy
... the surface crack length (2C) and the number of cycles ...the crack grew rapidly after crack initiation, and then the specimen ...the crack growth life was relatively ...fatigue ...
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Integrated probabilistic modelling of pitting and corrosion fatigue damage of subsea pipelines
... fatigue crack initiation time based on pit growth, however, the damage process was not entirely ...fatigue crack initiation; however, this model was conceptual and failed to provide a computational ...for ...
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Prediction of Fatigue Crack Propagation of Double Surface Cracks by "SCAN" (F437)
... It has been shown that the proposed influence function method is very effective and useful, but, at the moment, the analysis of K based on the method can be carried out only by authors since the database is owned only by ...
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