Results 331 to 340 of about 219,475 (402)

Effects of welding parameters and welding sequence on residual stress and distortion in Al6061-T6 aluminum alloy for T-shaped welded joint

, 2020
The distribution of temperature and then the distribution of residual stress and distortion in the stiffened aluminum alloy Al6061-T6 plates under the metal inert gas (MIG) welding process were investigated by three dimensional thermo-mechanical coupled ...
Amirreza Khoshroyan, Armin Rahmati Darvazi   +1 more
semanticscholar   +1 more source

Welding Residual Stresses in Tubular Joints

Materials Science Forum, 2013
In spite of an increased awareness of welding residual stress threat to structural integrity, the extent of its influence on fatigue especially under multiaxial loading is still unclear and is a matter of debate. One important reason for this lack of clarities is that the determination of the initial welding residual stress field in welded structures ...
Majid Farajian, Thomas Nitschke-Pagel, Klaus Dilger   +2 more
openaire   +1 more source

Controlling welding residual stress and distortion by a hybrid technology of transient thermal tensioning and trailing intensive cooling

Science and technology of welding and joining, 2019
A new method of hybrid technology for controlling welding residual stress and distortion is proposed, which contains the transient thermal tensioning with two symmetrical heat sources ahead and the trailing intensive cooling with a cooling source behind ...
Mingshen Li, S. Ji, De-jun Yan, Zhanpeng Yang   +3 more
semanticscholar   +1 more source

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 ...
openaire   +1 more source

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
openaire   +1 more source

Redistribution of the residual welding stresses

Marine Systems & Ocean Technology, 2013
This paper presents an experimental study of the residual welding stresses for butt-jointed steel plates. The stresses were monitored over two weeks after the removal of the welding constraints. The measurements were performed at the deposited metal, the heat-affected zone, the base metal close to the weld joint and along the plate using the X-ray ...
Segen F. Estefen, Tetyana Gurova, Anatoli Leontiev   +2 more
openaire   +1 more source

Welding Residual Stress and Pipeline Integrity

Offshore Technology Conference-Asia, 2014
Understanding welding-induced residual stresses can help the pipeline industry to produce and install safer, more reliable and potentially more cost-efficient pipeline designs. The weld residual stresses are often found to be in the tensile stress state in parts of the weld which is well-known to have a destructive effect on the fatigue life and ...
R. Tornqvist, J. Wang, J.P. Tronskar, A. Sisan   +3 more
openaire   +1 more source

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
openaire   +1 more source

Analysis of welding residual stress formation behavior during circumferential TIG welding of a pipe

Thin-walled structures, 2018
The objective of this study is to analyze the formation behavior of welding residual stresses during the circumferential TIG butt welding of pipes. A three-dimensional thermo-elastic-plastic numerical model has been developed by using MSC-Marc software ...
Chunbiao Wu, Jae-Woong Kim
semanticscholar   +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 ...
openaire   +1 more source