[PDF] Top 20 Sensitivity studies on numerical J-integral assessment of specimens containing dissimilar metal welds

... for dissimilar metal welds (DMWs) brittle and ductile integrity ...a sensitivity analysis of the influential modelling parameters for the SEN(B) and SEN(T) specimens containing ... See full document

... and numerical J-integral calculations on three standard specimens namely compact tension (CT) specimen, three-point single edge notch bending (3P-SENB) specimen and single edge notch tension ... See full document

... for all cases listed in Table 1. These are all 2D cases. In general the best agreement in global response was obtained for the CT specimens, followed by the SEN(B) and SEN(T) specimens. The agreement of the ... See full document

... Dissimilar welds are typically used in nuclear power plants for pressure boundary ...the dissimilar welds due to fatigue and stress corrosion ...the dissimilar welds can cause ... See full document

... Metallurgical transformations are simulated in the ferritic base metal whose various phases correspond to initial base metal, bainite, martensite, tempered ferrite and austenite. The basic characteristics ... See full document

... Base materials used to construct dissimilar welds are SA508 Gr.3 low alloy steel and F316 stainless steel. Both base metals are provided as forged and heat treated condition and prepared as 40mm thick plate ... See full document

... A finite element analysis of the SEN specimen is undertaken in order to estimate gradient displacements employing the CASTEM finite element program. This software is developed by the French atomic energy commission ... See full document

... of dissimilar friction stir welds between 5754 aluminium alloy and C11000 ...copper. Dissimilar Friction Stir Welds of 5754 aluminium and C11000 copper were produced by varying the rotational ... See full document

... very close to the weld interface and can be considered to be associated with the weld interface instead of the transition zone in the classification of the specimens. Figure 12(c) also reveals the intergranular ... See full document

... The shell element model loaded by the analytically defined loading function (Shell LF) was used for sensitivity studies on damping properties. Rayleigh damping model, Chopra (1995), was used. Damping ... See full document

... The objective of the ADIMEW project, that follows BIMET program finished in 2000, is to contribute to the development and verification of analysis methods which describe the behaviour of an external circumferential ... See full document

... A J-estimation scheme for cracks in welds was developed, to take benefit of the mismatch between the tensile properties of the weld material and those of the base ...of J for cracked welds is ... See full document

... Increase in welding current led to an increase in hardness and ultimate tensile strength values of as-weld samples (Tables 2 and 3) while impact strength decreases (Table 4). This is due to the fact that increasing ... See full document

... clinical specimens, although based on a small number of studies, the test appears to be less ...further studies indicate that line probe assay consistently and accurately detects RIF-resistant TB ... See full document

... produces welds by using a rotating, non-consumable welding tool to locally soften a workpiece, through heat produced by friction and plastic work, thereby allowing the tool to “stir” the joint ... See full document

... materials. The Acoustic-Emission-Analysis (AEA) is able to satisfy this demand for a quick, cheap and reliable analysis method. With the investigation of the sound characteristics it is possible to give information about ... See full document

... weld metal and buttering of CRDM and BMI ...weld metal mockup, a simple parametric study was required to refine specifications and quality requirements for the cracks and coupons, especially the selection ... See full document

... braze metal which melts at a temperature above 450 °C but below the melting temperature of the com- ponents to be joined so that there is no melting of the parent ... See full document

... Forged pipe (same condition as steam drum nozzle) of ferritic material (SA508 Grade 3 Class1) in quenched and tempered condition and downcomer piping of austenitic stainless steel (SA312 Type 304 LN) in solution annealed ... See full document

... The U.S. Nuclear Regulatory Commission (NRC) initiated research activities in 1989 at the Pacific Northwest National Laboratory (PNNL) with the major objective of estimating the density of fabrication flaws in U.S. light ... See full document