Fatigue strength assessment of complex welded structures with severe force concentrations along a weld seam

Loading...
Thumbnail Image
Access rights
openAccess
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2023-02
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
INTERNATIONAL JOURNAL OF FATIGUE, Volume 167
Abstract
This paper investigates weld root fatigue strength of complex structures including severe force concentrations along a weld seam. Fatigue tests were carried out for a pillar assembly with various weld configurations. A comparative analysis was carried out with local nominal weld stress (LNWS), structural weld stress, and effective notch stress (ENS) approaches. The study shows that the LNWS approach gives the best prediction, with a scatter range index of 1.26 to 1.68 depending on the weld type. The accuracy of the structural weld stress approach and ENS was significantly lower, with a scatter range index of 4.98 and 5.40, respectively.
Description
Keywords
Fatigue, Welded joint, Full-scale test, Weld root
Other note
Citation
Rautiainen , M , Remes , H , Niemelä , A & Romanoff , J 2023 , ' Fatigue strength assessment of complex welded structures with severe force concentrations along a weld seam ' , INTERNATIONAL JOURNAL OF FATIGUE , vol. 167 , 107321 . https://doi.org/10.1016/j.ijfatigue.2022.107321