35264
2016
eng
190
243
153
article
Elsevier Science
Kidlington
1
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--
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About the fatigue crack propagation threshold of metals as a design criterion - A review
The fatigue crack propagation threshold ΔKth is of paramount importance for any kind of damage tolerant design, but in contrast to this importance, the determination and application of the parameter is not on the firm ground as previously assumed. The paper discusses questions of its experimental determination as well as of its application to components. In both fields, new questions have been raised with the potential to challenge or modify long-standing knowledge. Against this background, the paper is an attempt to systematize the established knowledge as well as questions and open issues.
Engineering fracture mechanics
10.1016/j.engfracmech.2015.12.002
0013-7944
1873-7315
Standort: BAM-9.1
18.01.2016
Uwe Zerbst
M. Vormwald
R. Pippan
H.-P. Gänser
C. Sarrazin-Baudoux
Mauro Madia
eng
uncontrolled
Fatigue crack propagation threshold
eng
uncontrolled
Experimental determination
eng
uncontrolled
Influencing factors
eng
uncontrolled
Transferability to components
Ingenieurbau
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
46855
2018
eng
45
64
198
article
Elsevier
1
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The cyclic R-curve – Determination, problems, limitations and application
The so-called cyclic R curve, i.e. the crack size dependence of the fatigue crack propagation threshold in the physically short crack regime, is a key parameter for bringing together fatigue strength and fracture mechanics concepts. Its adequate determination is of paramount importance. However, notwithstanding this relevance, no test guideline is available by now and only very few institutions have spent research effort on cyclic R curves so far. The aim of the present paper is to give an overview on the state-of-the-art. Besides an introduction into the basic principles, the discussion will concentrate on the experimental determination on the one hand and questions of its application on the other hand.
Engineering fracture mechanics
10.1016/j.engfracmech.2017.09.032
0013-7944
1873-7315
04.12.2018
Uwe Zerbst
Mauro Madia
J. Maierhofer
S. Kolitsch
H.-P. Gänser
R. Pippan
eng
uncontrolled
Cyclic R-curve
eng
uncontrolled
Fatigue crack propagation threshold
eng
uncontrolled
Crack closure mechanisms
eng
uncontrolled
Cyclic R-curve analysis
eng
uncontrolled
Kitagawa-Takahashi diagram
Ingenieurwissenschaften und zugeordnete Tätigkeiten
9 Komponentensicherheit
9.4 Integrität von Schweißverbindungen
Material
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")