Results 241 to 250 of about 170,606 (309)

Residual Stresses in Linear Friction Welded IMI550

Journal of Neutron Research, 2004
Residual stresses in linear friction welded (LFW) IMI550 have been determined by means of high energy synchrotron X-ray diffraction. Specimens were studied in the as-welded, and three different post weld heat treated conditions. Mid-thickness-mid-width line scans were recorded across the weld line in the three principal directions ...
Preuss, Michael; id_orcid 0000-0003-3806-0415, Quinta da Fonseca, João; id_orcid 0000-0001-6063-8135, Steuwer, A, Wang, L, Withers, Philip; id_orcid 0000-0002-1946-5647, Bray, S   +5 more
openaire   +1 more source

Critical investigation on the influence of welding heat input and welding residual stress on stress intensity factor and fatigue crack propagation

Engineering Failure Analysis, 2018
This paper investigates the influence of the change in welding heat input (HI) and welding residual stress (RS) on the behavior of stress intensity factor (SIF) and fatigue crack propagation (FCP) by means of finite element method. Three welding HI cases
Ramy Gadallah, N. Osawa, Satoyuki Tanaka, S. Tsutsumi   +3 more
semanticscholar   +1 more source

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
openaire   +1 more source

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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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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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
openaire   +1 more source

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.
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Investigation of residual stress distribution of dissimilar Al-7075-T6 and Al-6061-T6 in the friction stir welding process strengthened with SiO2 nanoparticles

Journal of Manufacturing Processes, 2019
In this study, residual stress distribution and mechanical properties of friction stir welded dissimilar 7075-T6 and 6061-T6 aluminum alloys were investigated.
H. Jafari, H. Mansouri, M. Honarpisheh
semanticscholar   +1 more source