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Using X-Ray Diffraction and Finite Element Method to Analyze Residual Stress of Tube-to-Tubesheet Welded Joints in a Shell and Tube Heat Exchanger
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A lot of failures have been generated in the tube-to-tubesheet joints of a shell and tube heat exchanger, which are greatly affected by the weld residual stresses. In order to ensure the structure integrity, it is very ...
Effects of Clad and Base Metal Thickness on Residual Stress in the Repair Weld of a Stainless Steel Clad Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper used finite element method (FEM) to predict the residual stresses in repair weld of a stainless steel clad plate. The effects of clad metal thickness and base metal thickness on ...
Residual Stress Distribution in a Dissimilar Weld Joint by Experimental and Simulation Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dissimilar welding between carbon steel and stainless steel is widely used in power plant. A lot of stress corrosion cracking (SCC) have occurred in the weld joint, which are affected greatly by residual stresses. This ...
Effect of Impact Pressure on Reducing the Weld Residual Stress by Water Jet Peening in Repair Weld to 304 Stainless Steel Clad Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stainless steel clad plate manufactured by explosive bonding is widely used in the chemical industry, but cracks are often initiated in the clad layer. Repair welding is a popular method to repair the cracked zone. But ...
Effect of Cooling Rate on Phase Transformation and Strain Response of SA508-3 Steel by Numerical and Experimental Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The key to accurately predict welding residual stress is to explore the solid-phase transition law of SA508-3 steel and establish the phase transition model under continuous cooling conditions. The effects of cooling rate ...
Reducing Full-Field Residual Stress of Girth Weld With Thick Wall by Combining Local PWHT and Water Jet Peening
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a new controlling method combined local postweld heat treatment (PWHT) and water jet peening (WJP) was proposed to reduce full-field residual stress of girth weld with thick wall. The finite element analysis ...
Effect of Temperature Fluctuation on Creep and Failure Probability for Planar Solid Oxide Fuel Cell
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The creep and failure probability of a planar solid oxide fuel cell (SOFC) through a duty cycle is calculated by finite element method (FEM) and Weibull method, respectively. Two sealing methods, namely, rigid seal and ...
Residual Stress Distribution in Hard Facing of Pressure Relief Valve Seat
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, for the hardfacing of springloaded pressure relief valve seats, the residual stress distributions after the tungsten inert gas welding, (TIG) postwelded heat treatment and subsequent surface turning were ...
Control of Welding Residual Stress and Deformation of the Butt Welded Ultrathick Tube-Sheet: Effect of Applied Load
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Residual stresses and deformation in the butt welding of an ultrathick tube-sheet in a large scale reactor are predicted by finite element method. The effect of applied load on residual stress ...
Evaluation of Through-Thickness Residual Stresses by Neutron Diffraction and Finite-Element Method in Thick Weld Plates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Through-thickness distributions of the welding residual stresses were studied in the range of 50–100 mm thick plates by using finite-element modeling (FEM) and neutron diffraction measurements. In order to simulate the ...