Elucidating the Mechanism of Fatigue Crack Acceleration Following the Occurrence of an Underload

2016 ◽  
Vol 18 (12) ◽  
pp. 2076-2087 ◽  
Author(s):  
Enrico Salvati ◽  
Tan Sui ◽  
Hongjia Zhang ◽  
Alexander J. G. Lunt ◽  
Kai Soon Fong ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Crack Acceleration

Investigation of Fatigue Crack Acceleration under Variable Amplitude Loading for a Structural Steel and Aluminium Alloy

2014 ◽  
Vol 891-892 ◽  
pp. 581-587
Author(s):  
Matthew J. Doré ◽  
Stephen J. Maddox
Keyword(s):  
Fatigue Crack ◽  
Aluminium Alloy ◽  
Structural Steel ◽  
Crack Growth ◽  
Growth Response ◽  
Maximum Stress ◽  
Variable Amplitude Loading ◽  
Variable Amplitude ◽  
Constant Maximum ◽  
Crack Acceleration

There are currently serious doubts about the accuracy of Miners rule for designing welded structures subjected to variable amplitude loading, particularly under spectra cycling down from a constant maximum stress. The deficiency has been attributed primarily to stress interaction effects that cause crack growth acceleration. In this paper the crack growth response of a structural steel and an aluminium alloy to a loading spectrum designed to promote fatigue crack acceleration is studied and the potential mechanisms responsible are evaluated.

Interpretation of hydrogen-assisted fatigue crack acceleration in a pure iron based on crack tip microstructure evolution

2018 ◽  
Vol 2018.71 (0) ◽  
pp. C25
Author(s):  
Yuhei OGAWA ◽  
Domas BIRENIS ◽  
Hisao MATSUNAGA ◽  
Osamu TAKAKUWA ◽  
Junichiro YAMABE
Keyword(s):  
Fatigue Crack ◽  
Microstructure Evolution ◽  
Pure Iron ◽  
Crack Tip ◽  
Iron Based ◽  
Crack Acceleration

A discrete dislocation analysis of fatigue crack growth

2001 ◽  
Vol 11 (PR5) ◽  
pp. Pr5-69-Pr5-75
Author(s):  
V. S. Deshpande ◽  
H. H.M. Cleveringa ◽  
E. Van der Giessen ◽  
A. Needleman
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Discrete Dislocation

High Cycle Fatigue and Fatigue Crack Propagation Behaviors of Modified A7075-T73 Alloy

2014 ◽  
Vol 52 (4) ◽  
pp. 283-291 ◽  
Author(s):  
Gwan Yeong Kim ◽  
Kyu Sik Kim ◽  
Joong Cheol Park ◽  
Shae Kwang Kim ◽  
Young Ok Yoon ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
High Cycle Fatigue ◽  
Cycle Fatigue
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