Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions

This research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent mat...

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Main Authors: Abubkr M. Hemer, Mihajlo Arandjelović*, Ljubica Milović, Milan Kljajin, Jasmina Lozanović Šajić
Format: Article
Language:English
Published: Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek 2020-01-01
Series:Tehnički Vjesnik
Subjects:
Online Access:https://hrcak.srce.hr/file/361346
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author Abubkr M. Hemer
Mihajlo Arandjelović*
Ljubica Milović
Milan Kljajin
Jasmina Lozanović Šajić
author_facet Abubkr M. Hemer
Mihajlo Arandjelović*
Ljubica Milović
Milan Kljajin
Jasmina Lozanović Šajić
author_sort Abubkr M. Hemer
collection DOAJ
description This research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent material. The analysis will be related to specimens with different fatigue properties taken into account for both regions. These calculations included a number of models, since different crack lengths were used for the heat affected zone and the parent material. There were three pairs of different HAZ vs PM fatigue crack lengths, always with the assumption that the total crack length is 5 mm, due to measuring range of the used measuring foils. The aim of this analysis was to apply method typically used in fracture mechanics in order to determine the number of cycles in a welded joint with an initiated fatigue crack, depending on a number of parameters. Obtained results were then compared to the results from the numerical analysis for the same cases. While the total number of cycles was mostly unaffected by these changes, some noticeable differences were observed between individual welded joint regions in question, the heat affected zone and the parent material.
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spelling doaj.art-a8cefd8868c5422fa0290bee59d247d12024-04-15T16:40:43ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392020-01-012761931193710.17559/TV-20200921152557Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint RegionsAbubkr M. Hemer0Mihajlo Arandjelović*1Ljubica Milović2Milan Kljajin3Jasmina Lozanović Šajić4University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, SerbiaInnovation Center of Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, SerbiaUniversity of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, SerbiaUniversity North, University Center Varaždin, Jurja Križanića 31b, 42000 Varaždin, CroatiaInnovation Center of Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, SerbiaThis research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent material. The analysis will be related to specimens with different fatigue properties taken into account for both regions. These calculations included a number of models, since different crack lengths were used for the heat affected zone and the parent material. There were three pairs of different HAZ vs PM fatigue crack lengths, always with the assumption that the total crack length is 5 mm, due to measuring range of the used measuring foils. The aim of this analysis was to apply method typically used in fracture mechanics in order to determine the number of cycles in a welded joint with an initiated fatigue crack, depending on a number of parameters. Obtained results were then compared to the results from the numerical analysis for the same cases. While the total number of cycles was mostly unaffected by these changes, some noticeable differences were observed between individual welded joint regions in question, the heat affected zone and the parent material.https://hrcak.srce.hr/file/361346fatigue lifefracture mechanicswelded joint region
spellingShingle Abubkr M. Hemer
Mihajlo Arandjelović*
Ljubica Milović
Milan Kljajin
Jasmina Lozanović Šajić
Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
Tehnički Vjesnik
fatigue life
fracture mechanics
welded joint region
title Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
title_full Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
title_fullStr Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
title_full_unstemmed Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
title_short Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
title_sort analytical vs numerical calculation of fatigue life for different welded joint regions
topic fatigue life
fracture mechanics
welded joint region
url https://hrcak.srce.hr/file/361346
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AT mihajloarandjelovic analyticalvsnumericalcalculationoffatiguelifefordifferentweldedjointregions
AT ljubicamilovic analyticalvsnumericalcalculationoffatiguelifefordifferentweldedjointregions
AT milankljajin analyticalvsnumericalcalculationoffatiguelifefordifferentweldedjointregions
AT jasminalozanovicsajic analyticalvsnumericalcalculationoffatiguelifefordifferentweldedjointregions