scholarly journals Comparative study of multiaxial fatigue methods applied to welded joints in marine structures

2016 ◽  
Vol 10 (37) ◽  
pp. 173-192 ◽  
Author(s):  
P.S. van Lieshout ◽  
J.H. den Besten ◽  
M.L. Kaminski
Keyword(s):  
Comparative Study ◽  
Welded Joints ◽  
Multiaxial Fatigue ◽  
Marine Structures

Multiaxial fatigue assessment of welded joints in marine structures

2018 ◽  
Vol 65 (1) ◽  
pp. 29-71 ◽  
Author(s):  
P.S. van Lieshout ◽  
J.H. den Besten ◽  
M.L. Kaminski
Keyword(s):  
Welded Joints ◽  
Multiaxial Fatigue ◽  
Marine Structures ◽  
Fatigue Assessment

scholarly journals Extremely-Low-Cycle Fatigue Damage for Beam-to-Column Welded Joints Using Structural Details

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1768
Author(s):  
Lizhen Huang ◽  
Weilian Qu ◽  
Ernian Zhao
Keyword(s):  
Fatigue Damage ◽  
Welded Joints ◽  
Low Cycle Fatigue ◽  
Damage Model ◽  
Multiaxial Fatigue ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Butt Weld ◽  
Damage Models ◽  
Structural Details

The multiaxial fatigue critical plane method can be used to evaluate the extremely-low-cycle fatigue (ELCF) damage of beam-to-column welded joints in steel frameworks subjected to strong seismic activity. In this paper, fatigue damage models using structural detail parameters are studied. Firstly, the fatigue properties obtained from experiments are adopted to assess ELCF life for steel frameworks. In these experiments, two types of welded specimens, namely, plate butt weld (PB) and cruciform load-carrying groove weld (CLG), are designed according to the structural details of steel beam and box column joints, in which both structural details and welded factors are taken into account. Secondly, experiments are performed on three full-scale steel welded beam-to-column joints to determine the contribution of stress and/or strain to damage parameters. Finally, we introduce a modification of the most popular fatigue damage model of Fatemi and Socie (FS), modified by us in a previous study, for damage evaluation, and compare this with Shang and Wang (SW) in order to examine the applicability of the fatigue properties of PB and CLG. This study shows that the modified FS model using the fatigue properties of CLG can predict the crack initiation life and evaluate the damage of beam-to-column welded joints, and can be subsequently used for further investigation of the damage evolution law.

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