Results 231 to 240 of about 4,090,931 (280)

Welding residual stress and distortion

1992
A characteristic of application-oriented analysis of welding residual stress and distortion is the mainly decoupled representation of the thermal, mechanical and microstructural processes (illustrated by the line arrows in Fig. 3). The basis of stress and distortion analysis is the temperature field during welding, determined numerically or by ...
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Prediction of Weld Residual Stress of Narrow Gap Welds

Transactions of the Korean Society of Mechanical Engineers A, 2010
The conventional welding technique such as shield metal arc welding has been mostly applied to the piping system of the nuclear power plants. It is well known that this welding technique causes the overheating and welding defects due to the large groove angle of weld.
Jun-Seog Yang, Nam-Su Heo
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Residual Stress Management in Welding: Residual Stress Measurement and Improvement Treatments

Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium, 2012
Residual stress (RS) can significantly affect engineering properties of materials and structural components, notably fatigue life, distortion, dimensional stability, corrosion resistance etc. Residual stresses play an exceptionally significant role in fatigue of welded elements. The influence of residual stresses on the multi-cycle fatigue life of butt
Jacob Kleiman, Yuri Kudryavtsev
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Evaluation of Welding Residual Stress in GTAW Tubular Welds

Volume 3: Design and Analysis, 2013
The purpose of this study is to evaluate the welding residual stress of the tubular welds with welding pass and restraint conditions. For it, a heat input model for GTA (Gas Tungsten Arc) pulse welding was developed by comparing the molten pool shape and the temperature history in way of the weld obtained by FEA and experiment.
Hyung-Kook Jin, Ha-Geun Kim, Sang-Beom Shin   +2 more
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Welding Residual Stress and Distortion

2016
The panels, subassemblies and assemblies being welded are subjected to thermal cycles of heating followed by cooling. It causes shrinkage forces to develop in the welded panels. The shrinkage forces tend to cause different degrees of distortion.
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Residual stresses in welded structures

International Journal of Pressure Vessels and Piping, 2008
Abstract The nature of residual stresses in welded structures is discussed in terms of their magnitude, directionality, spatial distribution, range and variability. The effects of the following factors on the residual stresses are considered: material properties, material manufacture, structural geometry, fabrication procedure, welding procedure ...
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Residual Stress on Titanium Alloy Welded Joints

2007
Titanium and its alloys presents an elevated strength/weight ratio, good mechanical properties also to high temperatures, elevated resistance to corrosion and to most part of acids attack. These characteristics makes this material attractive for numerous applications.
CASAVOLA, Caterina, PAPPALETTERE, Carmine   +1 more
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Modeling of Residual Stress in Butt Welding

Materials and Manufacturing Processes, 2011
Welding is one of the major manufacturing processes widely used in all industries because of its inherent properties of joining similar or dissimilar metals efficiently and economically. Residual stresses are inherent, unavoidable detrimental and have significant effect in welded structures. Researchers have developed many techniques to predict welding
J. Edwin Raja Dhas, Somasundaram Kumanan
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Residual Stress Evolution in Repair Welds

Strain, 2003
Abstract: The aim of this paper is to study the influence of the repair procedure on the evolution of residual stress distribution in butt welds. C‐Mn steel coupon plates of 11 mm thickness were prepared, subjected to stress relief heat treatment and welded with two beads, using the gas metal arc welding process. After the deposition of two weld beads,
C. Veiga, A. Loureiro, A. Dias
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Residual Stresses Due to Circumferential Welds

Journal of Engineering Materials and Technology, 1973
The residual stress distribution produced by a circumferential weld between axisymmetric shells (cylinders, spheres, cones, etc.) is quite different from that due to a butt weld between two flat plates. The reason for this difference is pointed out and it is shown that the state of stress in thin-walled shells may be estimated from that in a plate ...
S. Vaidyanathan, A. F. Todaro, I. Finnie
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