A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses
Residual Stress (RS) pattern changes considerably depending on the width of the plates and the welding parameters, having effect on the fatigue strength. Most of the standards do not consider them and in some works, yield stress is taken as residual stress value. It results in a very conservative es...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201816521005 |
| _version_ | 1818612526345093120 |
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| author | Llavori Iñigo Etxebarria Unai López-Jauregi Arkaitz Ulacia Ibai Ugarte Done Esnaola Jon Ander Larrañaga Miren |
| author_facet | Llavori Iñigo Etxebarria Unai López-Jauregi Arkaitz Ulacia Ibai Ugarte Done Esnaola Jon Ander Larrañaga Miren |
| author_sort | Llavori Iñigo |
| collection | DOAJ |
| description | Residual Stress (RS) pattern changes considerably depending on the width of the plates and the welding parameters, having effect on the fatigue strength. Most of the standards do not consider them and in some works, yield stress is taken as residual stress value. It results in a very conservative estimation of fatigue life. Authors developed recently a numerical model to predict more properly the value of RS pattern depending on the plate thickness. In a welded joint, considering the RS and alternating axial loads, the evolution of the stresses is multiaxial, becoming necessary its study. Therefore, the aim of this work is to analyse different fatigue indicator parameters (Smith-Watson-Topper, Fatemi-Socie, and Critical Plane implementation of the Basquin equation) in order to predict the fatigue behaviour of butt-weld components. For that purpose, the numerical model to predict the RS pattern in welded joint developed by this research group is used. |
| first_indexed | 2024-12-16T15:47:37Z |
| format | Article |
| id | doaj.art-59fc7f2decad488596e1face198c18e2 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T15:47:37Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-59fc7f2decad488596e1face198c18e22022-12-21T22:25:46ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011652100510.1051/matecconf/201816521005matecconf_fatigue2018_21005A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stressesLlavori IñigoEtxebarria UnaiLópez-Jauregi ArkaitzUlacia IbaiUgarte DoneEsnaola Jon AnderLarrañaga MirenResidual Stress (RS) pattern changes considerably depending on the width of the plates and the welding parameters, having effect on the fatigue strength. Most of the standards do not consider them and in some works, yield stress is taken as residual stress value. It results in a very conservative estimation of fatigue life. Authors developed recently a numerical model to predict more properly the value of RS pattern depending on the plate thickness. In a welded joint, considering the RS and alternating axial loads, the evolution of the stresses is multiaxial, becoming necessary its study. Therefore, the aim of this work is to analyse different fatigue indicator parameters (Smith-Watson-Topper, Fatemi-Socie, and Critical Plane implementation of the Basquin equation) in order to predict the fatigue behaviour of butt-weld components. For that purpose, the numerical model to predict the RS pattern in welded joint developed by this research group is used.https://doi.org/10.1051/matecconf/201816521005 |
| spellingShingle | Llavori Iñigo Etxebarria Unai López-Jauregi Arkaitz Ulacia Ibai Ugarte Done Esnaola Jon Ander Larrañaga Miren A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses MATEC Web of Conferences |
| title | A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| title_full | A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| title_fullStr | A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| title_full_unstemmed | A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| title_short | A numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| title_sort | numerical analysis of multiaxial fatigue in a butt weld specimen considering residual stresses |
| url | https://doi.org/10.1051/matecconf/201816521005 |
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