Through-thickness welding residual stress and its effect on stress intensity factors for semi-elliptical surface cracks in a butt-welded steel plate

Qiang, Bin; Li, Yadong; Yao, Changrong; Wang, Xin

doi:10.1016/j.engfracmech.2018.02.016

Cited by 34 publications

(14 citation statements)

References 30 publications

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“…However, when, the rate loading increases, increasing in absolute value the residual stresses for the same temperature. Similar phenomena and related explanations were reported by many authors [1,2,22,25,30].…”

Section: Results and Interpretationsupporting

confidence: 91%

“…So, as many researchers have been carried out on the effect of residual stresses on fatigue behaviors, the studies on the numerical modeling of residual stress redistribution due to fatigue crack propagation are relatively insufficient [22,23]. Thus, the effects of weld residual stresses on fatigue crack growth (FCG), both parallel and perpendicular to Aluminum friction stir welds were investigated by many others [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Residual Stress Generation at Crack Tip under Thermomechanical Effects of Aluminum Alloy 2024-T3: Numerical Modelisation

Kebir¹,

Benguediab²,

Bouamama³

et al. 2020

ACSM

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The residual stresses which result from the manufacture are present in the mechanical part with absence of any external force, but also they can be generated by various procedures. These stresses are the result of incompatibilities of deformation related to the heterogeneity of the plastic strain. Therefore, as the crack propagated in the residual stress field, the distribution of residual stresses is changed. The purpose of this work is to generate the thermomechanical residual stresses on along direction of crack propagation using a numerical simulation by Ansys software. This numerical approach allows us to evaluate the thermomechanical relaxation of the compressive residual stresses induced by plastic strain at crack tip.

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Section: Results and Interpretationsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Residual Stress Generation at Crack Tip under Thermomechanical Effects of Aluminum Alloy 2024-T3: Numerical Modelisation

Kebir¹,

Benguediab²,

Bouamama³

et al. 2020

ACSM

View full text Add to dashboard Cite

show abstract

“…The effects from girth welding on circumferential surface crack growth in offshore metallic pipes, i.e., welding residual stress, is an unavoidable topic, since offshore metallic pipes are connected by means of girth welding, while investigations of surface crack growth in girth welded metallic pipes are absent in open documents. By means of numerical simulations on the butt welded plate, researchers have indicated that the effect of welding residual stress on the SIF of surface cracks is either beneficial or detrimental, depending on the distribution of the residual stress [79]. In addition, owing to the distribution of the welding residual stress around the cracked zone, the SIF of each point along the surface crack front will be changed, which will result in the changing of the crack growth rate and the variation of the crack shape.…”

Section: Girth Welding Effectmentioning

confidence: 99%

Surface Crack Growth in Offshore Metallic Pipes under Cyclic Loads: A Literature Review

Jiang

Hopman

2020

JMSE

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The surface crack, also known as the partly through-thickness crack, is a serious threat to the structural integrity of offshore metallic pipes. In this paper, we review the research progress in regard to surface crack growth in metallic pipes subjected to cyclic loads from the fracture mechanics perspective. The purpose is to provide state-of-the-art investigations, as well as indicate the remaining challenges. First, the available studies on surface cracked metallic pipes are overviewed from experimental, numerical, and analytical perspectives, respectively. Then, we analyse state-of-the-art research and discuss the insufficiencies of the available literature from different perspectives, such as surface cracks and pipe configurations, environmental influential parameters, the girth welding effect, and numerical and analytical evaluation methods. Building on these surveys and discussions, we identify various remaining challenges and possible further research topics that are anticipated to be of significant value both for academics and practitioners.

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“…The development of fatigue approaches that account for the effect of residual stresses induced by the arc welding process is a topic of increasing interest not only in the scientific literature but also in the industrial context [1][2][3][4][5]. For this purpose, numerical simulations aimed at predicting residual stress distributions due to the welding process [6][7][8][9][10][11][12][13][14][15][16] should be as reliable as possible, but they must also be rapid to meet industrial needs.…”

Section: Introductionmentioning

confidence: 99%

Residual Notch Stress Intensity Factors in Welded Joints Evaluated by 3D Numerical Simulations of Arc Welding Processes

et al. 2021

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Approaches based on calculating Residual Notch Stress Intensity Factors (R-NSIFs) assume the weld toe to be a sharp V-notch that gives rise to a residual singular stress distribution close to the weld toe. Once R-NSIFs are determined, they might be included in local fatigue criteria for the structural strength assessment of welded joints based on NSIFs due to external cyclic loading. However, the numerical calculation of R-NSIFs through finite element (FE) simulations of the welding process requires extremely refined meshes to properly capture the residual stress singularity. In this context, the Peak Stress Method (PSM) has recently been adopted to estimate R-NSIFs due to residual stresses by means of coarse meshes of 2D 4-node plane or 3D 8-node brick elements. The aim of this work is to investigate the applicability of the PSM to estimate R-NSIFs in a butt-welded joint using coarse meshes of 3D 10-node tetra elements. The R-NSIF distribution at the weld toe line is estimated by applying the PSM to coarse meshes of 3D 10-node tetra elements, and the results are in agreement with those obtained using 3D 8-node brick elements. Accordingly, the PSM based on tetra elements further enhances the rapid estimation of R-NSIFs using coarse meshes and could be effective in analyzing complex 3D joint geometries.

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Through-thickness welding residual stress and its effect on stress intensity factors for semi-elliptical surface cracks in a butt-welded steel plate

Cited by 34 publications

References 30 publications

Residual Stress Generation at Crack Tip under Thermomechanical Effects of Aluminum Alloy 2024-T3: Numerical Modelisation

Residual Stress Generation at Crack Tip under Thermomechanical Effects of Aluminum Alloy 2024-T3: Numerical Modelisation

Surface Crack Growth in Offshore Metallic Pipes under Cyclic Loads: A Literature Review

Residual Notch Stress Intensity Factors in Welded Joints Evaluated by 3D Numerical Simulations of Arc Welding Processes

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