Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates

The present study deals with the influence of residual stresses induced by the buried-arc welding on the crack behavior in two butt-welded 20 mm thick plates. The following steps were undertaken: the thermo-mechanical simulation of the welding process, the mapping of stress results from a finite ele...

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Autores principales:	Krešimir Jukić, Mato Perić, Zdenko Tonković, Ivica Skozrit, Tomislav Jarak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	buried arc welding butt-welded plates stress intensity factor welding residual stress semi-elliptical surface crack finite element analysis Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/941d74d969054c6b9d1e2ddff4f79071
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id	oai:doaj.org-article:941d74d969054c6b9d1e2ddff4f79071
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spelling	oai:doaj.org-article:941d74d969054c6b9d1e2ddff4f790712021-11-25T18:22:08ZNumerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates10.3390/met111118092075-4701https://doaj.org/article/941d74d969054c6b9d1e2ddff4f790712021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1809https://doaj.org/toc/2075-4701The present study deals with the influence of residual stresses induced by the buried-arc welding on the crack behavior in two butt-welded 20 mm thick plates. The following steps were undertaken: the thermo-mechanical simulation of the welding process, the mapping of stress results from a finite element (FE) mesh used for the welding simulation to a new FE mesh with a crack, the stress balancing, and the stress intensity factor (SIF) calculation. The FE and weight function (WF) methods were used to investigate the SIFs at the deepest point of semi-elliptical surface cracks with different geometries, orientations, and positions in relation to the weld line. In the case of cracks perpendicular to the weld line, the FE and WF results showed a good agreement for smaller cracks, while deviation between the results increases with the size of the crack. Considering the SIF solutions for the cracks of arbitrary orientation, it was observed that for some cases, the SIF value for mode III of crack opening can be of significant influence.Krešimir JukićMato PerićZdenko TonkovićIvica SkozritTomislav JarakMDPI AGarticleburied arc weldingbutt-welded platesstress intensity factorwelding residual stresssemi-elliptical surface crackfinite element analysisMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1809, p 1809 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	buried arc welding butt-welded plates stress intensity factor welding residual stress semi-elliptical surface crack finite element analysis Mining engineering. Metallurgy TN1-997
spellingShingle	buried arc welding butt-welded plates stress intensity factor welding residual stress semi-elliptical surface crack finite element analysis Mining engineering. Metallurgy TN1-997 Krešimir Jukić Mato Perić Zdenko Tonković Ivica Skozrit Tomislav Jarak Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
description	The present study deals with the influence of residual stresses induced by the buried-arc welding on the crack behavior in two butt-welded 20 mm thick plates. The following steps were undertaken: the thermo-mechanical simulation of the welding process, the mapping of stress results from a finite element (FE) mesh used for the welding simulation to a new FE mesh with a crack, the stress balancing, and the stress intensity factor (SIF) calculation. The FE and weight function (WF) methods were used to investigate the SIFs at the deepest point of semi-elliptical surface cracks with different geometries, orientations, and positions in relation to the weld line. In the case of cracks perpendicular to the weld line, the FE and WF results showed a good agreement for smaller cracks, while deviation between the results increases with the size of the crack. Considering the SIF solutions for the cracks of arbitrary orientation, it was observed that for some cases, the SIF value for mode III of crack opening can be of significant influence.
format	article
author	Krešimir Jukić Mato Perić Zdenko Tonković Ivica Skozrit Tomislav Jarak
author_facet	Krešimir Jukić Mato Perić Zdenko Tonković Ivica Skozrit Tomislav Jarak
author_sort	Krešimir Jukić
title	Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
title_short	Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
title_full	Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
title_fullStr	Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
title_full_unstemmed	Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates
title_sort	numerical calculation of stress intensity factors for semi-elliptical surface cracks in buried-arc welded thick plates
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/941d74d969054c6b9d1e2ddff4f79071
work_keys_str_mv	AT kresimirjukic numericalcalculationofstressintensityfactorsforsemiellipticalsurfacecracksinburiedarcweldedthickplates AT matoperic numericalcalculationofstressintensityfactorsforsemiellipticalsurfacecracksinburiedarcweldedthickplates AT zdenkotonkovic numericalcalculationofstressintensityfactorsforsemiellipticalsurfacecracksinburiedarcweldedthickplates AT ivicaskozrit numericalcalculationofstressintensityfactorsforsemiellipticalsurfacecracksinburiedarcweldedthickplates AT tomislavjarak numericalcalculationofstressintensityfactorsforsemiellipticalsurfacecracksinburiedarcweldedthickplates
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Numerical Calculation of Stress Intensity Factors for Semi-Elliptical Surface Cracks in Buried-Arc Welded Thick Plates

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