Analysis of welding-induced residual stresses with the ADINA system

Wilkening, W.W.; Snow, J. L.

doi:10.1016/0045-7949(93)90358-k

Cited by 17 publications

(4 citation statements)

References 9 publications

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“…Consequently deactivated elements deform along with the live elements, and the compatibility problem due to the deposition of undistorted elements (belonging to the new weld bead) on the distorted elements (belonging to the previously laid weld bead) can be reduced significantly. Wilkening and Snow [32] suggested that during structural analysis all the nodes of the deactivated elements should be maintained at the so-called softening temperature till the time of activation of the respective element of the particular weld bead is reached. For the present work, the quiet element technique with the above-mentioned recommendation was applied.…”

Section: Addition Of Filler Metalmentioning

confidence: 99%

Numerical simulation of mechanical stress relieving in a multi-pass GTA girth welded pipe–flange joint to reduce IGSCC

Siddique¹,

Abid²

2005

Modelling Simul. Mater. Sci. Eng.

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Welding of piping components produces highly non-uniform residual stresses in the weldment which consequently affect material structural response under loading and also expedite origination/propagation of defects such as stress corrosion cracking and brittle fracture. For welding-induced residual stresses, mechanical stress relieving (MSR) is one of the mitigation techniques to improve the service life of pressure vessel components. However, its application to piping systems is rarely reported in the literature. This paper presents a two-dimensional axisymmetric finite element model of a pipe–flange joint subjected to a multi-pass girth welding followed by an MSR process. Sequentially coupled non-linear transient thermo-mechanical analysis for multi-pass gas tungsten arc welding is first performed to calculate welding residual stresses. Subsequently separate parametric studies for three different types of MSR load including internal pressure, external pressure and axial pull are performed on the pre-stressed model, and stress relieving behaviour is studied. It is concluded that both the internal pressure and axial pull have a significant effect on residual stresses on the inner surface of the joint.

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Section: Addition Of Filler Metalmentioning

confidence: 99%

Numerical simulation of mechanical stress relieving in a multi-pass GTA girth welded pipe–flange joint to reduce IGSCC

Siddique¹,

Abid²

2005

Modelling Simul. Mater. Sci. Eng.

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“…Moreover, accumulated plastic strains and stresses must be relaxed in existing materials when they are subject to annealing effects. The nodal birth method [20], the strain relaxation method [21] and the element birth and death method [22,23] are the main techniques to model this phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Thermo-mechanical analysis of the MIG/MAG multi-pass welding process on AISI 304L stainless steel plates

Farias

Teixeira

Araújo

2016

J Braz. Soc. Mech. Sci. Eng.

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“…[6][7][8] Compressive stresses are generally beneficial, but cause a decrease in the allowable buckling load. 9 The beneficial effects of compressive stresses have been widely recognised in industry, as these are believed to increase fatigue strength of the components and reduce stress corrosion cracking and brittle fracture, etc. In several practical applications, these are deliberately introduced through some post-manufacturing treatment such as shot peening or water jet peening, etc.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, hardness and residual stress distribution of dissimilar metal electron beam welds: Maraging steel and high strength low alloy steel

Rao

Reddy

Raju

2010

Materials Science and Technology

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The present investigation reports on a study that has been taken up to develop an understanding of the electron beam welding characteristics of similar and dissimilar combination of maraging steel and high strength low alloy steel, which are in the hardened condition, i.e. maraging steel, in a solution that was in treated and aged condition, whereas high strength low alloy steel in a quenched and tempered condition before welding. The joint characterisation studies include microstructural examination, microhardness survey across the weldment and measurement of residual stresses. Maraging steel weld metal is under compressive stress rather than tensile stress as observed in low alloy steel welds because the martensite transformation occurs at a relatively low temperature. It has been observed that, in dissimilar metal welds, tensile stress is observed at the fusion boundary of low alloy steel and weld metal, whereas compressive stress is obtained at the location between weld and maraging steel fusion boundary. Dissimilar weldment contains a soft region beside the interface on maraging steel side because of the diffusion of manganese from low alloy steel towards maraging steel. The observed residual stresses, hardness distribution across the similar and dissimilar metal welds are correlated with the observed microstructures.

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Analysis of welding-induced residual stresses with the ADINA system

Cited by 17 publications

References 9 publications

Numerical simulation of mechanical stress relieving in a multi-pass GTA girth welded pipe–flange joint to reduce IGSCC

Numerical simulation of mechanical stress relieving in a multi-pass GTA girth welded pipe–flange joint to reduce IGSCC

Thermo-mechanical analysis of the MIG/MAG multi-pass welding process on AISI 304L stainless steel plates

Microstructure, hardness and residual stress distribution of dissimilar metal electron beam welds: Maraging steel and high strength low alloy steel

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