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  4. The effect of the local and global weld geometry as well as material defects on crack initiation and fatigue strength
 
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The effect of the local and global weld geometry as well as material defects on crack initiation and fatigue strength

Publikationstyp
Journal Article
Date Issued
2018-07
Sprache
English
Author(s)
Schork, Benjamin  
Kucharczyk, Pawel  
Madia, Mauro  
Zerbst, Uwe  
Hensel, Jonas  
Bernhard, Julian  
Tchuindjang, Didi Deflor  
Kaffenberger, Matthias  
Oechsner, Matthias  
Institut
Konstruktion und Festigkeit von Schiffen M-10  
TORE-URI
http://hdl.handle.net/11420/2939
Journal
Engineering fracture mechanics  
Volume
198
Start Page
103
End Page
122
Citation
Engineering Fracture Mechanics (198): 103-122 (2018-07)
Publisher DOI
10.1016/j.engfracmech.2017.07.001
Scopus ID
2-s2.0-85028410490
The paper provides an application of the IBESS approach to the investigation of the influence of various parameters of the global and local weld geometry as well as material defects on the fatigue strength of weldments. For this purpose, the global weld parameters, such as the weld toe radius, the flank angle, the excess weld metal, local secondary notches (in the present study as a measure of surface imperfections) and inclusions sizes have been determined as statistical distributions for different joint types and geometries and two steels of different strengths. The results are in line with literature data and reveal the potential of the theoretical approach to predict the correct trends. The combination with an advanced weld quality system has been demonstrated to be possible.
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