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Fatigue life prediction of butt weld joint with weld defects at multiple locations
ID Gnanasigamony Thankareathenam, Ebron Shaji (Author), ID Venugopal, Prabhu Raja (Author), ID Velayudhan, Gautham (Author), ID Selvakumar, Mohanraj (Author)

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Abstract
A numerical model developed using finite element software is used to determine the fatigue life of an arc-welded butt joint with weld defects: lack of penetration, lack of fusion, and undercut, which occur predominantly in welded structures. High-strength, tempered, and quenched fine grain ASTM A517 grade F structural steel, widely used in welded structures, is selected as the base material. The finite element analysis approach adopted in the present work is validated using the experimental and analytical results by performing a benchmark study. The validated numerical approach is then used to generate datasets for developing an empirical model for predicting the fatigue life of a butt joint with defects, modelled as cracks at specific locations, subjected to bending and/or membrane stresses. An experimental investigation was undertaken to validate the empirical model. The influencing parameters are ranked based on their severity on the fatigue life of butt joint.

Language:English
Keywords:butt joint, weld defects, fatigue loading, fatigue life
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2022
Year:2022
Number of pages:Str. 350-358
Numbering:Vol. 68, no. 5
PID:20.500.12556/RUL-137286 This link opens in a new window
UDC:539.422.24
ISSN on article:0039-2480
DOI:10.5545/sv-jme.2021.7536 This link opens in a new window
COBISS.SI-ID:111038211 This link opens in a new window
Publication date in RUL:09.06.2022
Views:764
Downloads:60
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:0039-2480
COBISS.SI-ID:762116 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:24.02.2022

Secondary language

Language:Slovenian
Title:Napovedovanje časovne trdnosti sočelnih zvarov z napakami na več mestih
Keywords:sočelni spoji, napake v zvarih, rast razpok, utrujenostne obremenitve, časovna trdnost

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