Initial Fatigue Life Estimation of Welded Structural Components

Numerical modelling of welding process of two cylindrical tubes subjected to cyclic loads of constant amplitude is presented. For that purpose the Finite Element Method (FEM) was used for determination of thermo-mechanical behaviour and evaluation of welded joint residual stresses. In this investiga...

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Main Authors: Mirko Maksimovic, Katarina Maksimovic, Dragi Stamenkovic, Ivana Vasovic Maksimovic*
Format: Article
Language:English
Published: Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek 2021-01-01
Series:Tehnički Vjesnik
Subjects:
Online Access:https://hrcak.srce.hr/file/379361
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author Mirko Maksimovic
Katarina Maksimovic
Dragi Stamenkovic
Ivana Vasovic Maksimovic*
author_facet Mirko Maksimovic
Katarina Maksimovic
Dragi Stamenkovic
Ivana Vasovic Maksimovic*
author_sort Mirko Maksimovic
collection DOAJ
description Numerical modelling of welding process of two cylindrical tubes subjected to cyclic loads of constant amplitude is presented. For that purpose the Finite Element Method (FEM) was used for determination of thermo-mechanical behaviour and evaluation of welded joint residual stresses. In this investigation an efficient computation method for initial fatigue life estimation of welded structural components has been developed. Computation method with corresponding computation procedure is based on finite element numerical simulations of the thermal and stress analyses. As measure of fatigue resistance of welded structural elements, estimated values of low cycle fatigue life were used. Estimation of damages up to crack initiation in the welded joints of two cylindrical tubes was performed using SWT (Smith-Watson-Topper) relations. Present computation results are compared with corresponding experimental results of welded structural components. Obtained computation results of initial fatigue life estimation of welded structural element are in good agreement with experimental results.
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spelling doaj.art-be4d95b23823449893ad78783f18c5de2024-04-15T17:06:42ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392021-01-012841099110410.17559/TV-20200414015501Initial Fatigue Life Estimation of Welded Structural ComponentsMirko Maksimovic0Katarina Maksimovic1Dragi Stamenkovic2Ivana Vasovic Maksimovic*3PUC Belgrade Waterworks and Sewerage, Kneza Milosa st. 27, Belgrade, SerbiaCity of Belgrade Administration, Kraljice Marije st. 1, Belgrade, SerbiaIDS GmbH, Oberhausen, GermanyLola Institute, Kneza Višeslava st. 70a, Belgrade, SerbiaNumerical modelling of welding process of two cylindrical tubes subjected to cyclic loads of constant amplitude is presented. For that purpose the Finite Element Method (FEM) was used for determination of thermo-mechanical behaviour and evaluation of welded joint residual stresses. In this investigation an efficient computation method for initial fatigue life estimation of welded structural components has been developed. Computation method with corresponding computation procedure is based on finite element numerical simulations of the thermal and stress analyses. As measure of fatigue resistance of welded structural elements, estimated values of low cycle fatigue life were used. Estimation of damages up to crack initiation in the welded joints of two cylindrical tubes was performed using SWT (Smith-Watson-Topper) relations. Present computation results are compared with corresponding experimental results of welded structural components. Obtained computation results of initial fatigue life estimation of welded structural element are in good agreement with experimental results.https://hrcak.srce.hr/file/379361cylindrical tubefatigue life estimationfinite elementsnumerical simulationswelded structures
spellingShingle Mirko Maksimovic
Katarina Maksimovic
Dragi Stamenkovic
Ivana Vasovic Maksimovic*
Initial Fatigue Life Estimation of Welded Structural Components
Tehnički Vjesnik
cylindrical tube
fatigue life estimation
finite elements
numerical simulations
welded structures
title Initial Fatigue Life Estimation of Welded Structural Components
title_full Initial Fatigue Life Estimation of Welded Structural Components
title_fullStr Initial Fatigue Life Estimation of Welded Structural Components
title_full_unstemmed Initial Fatigue Life Estimation of Welded Structural Components
title_short Initial Fatigue Life Estimation of Welded Structural Components
title_sort initial fatigue life estimation of welded structural components
topic cylindrical tube
fatigue life estimation
finite elements
numerical simulations
welded structures
url https://hrcak.srce.hr/file/379361
work_keys_str_mv AT mirkomaksimovic initialfatiguelifeestimationofweldedstructuralcomponents
AT katarinamaksimovic initialfatiguelifeestimationofweldedstructuralcomponents
AT dragistamenkovic initialfatiguelifeestimationofweldedstructuralcomponents
AT ivanavasovicmaksimovic initialfatiguelifeestimationofweldedstructuralcomponents