Fatigue crack growth measurement in polymers using electrically conductive surface grids

1984 ◽  
Vol 3 (11) ◽  
pp. 971-974 ◽  
Author(s):  
Y. W. Mai ◽  
P. R. Kerr
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Electrically Conductive ◽  
Growth Measurement ◽  
Conductive Surface

Fatigue Crack Growth in Steels 42CrV and IR3Mo

2004 ◽  
Vol 261-263 ◽  
pp. 1179-1184 ◽  
Author(s):  
Qin Zhi Fang
Keyword(s):  
Fatigue Crack ◽  
Stress Intensity ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Measurement System ◽  
Growth Rates ◽  
Fatigue Tests ◽  
Intensity Factors ◽  
Growth Measurement ◽  
Crack Growth Rates

An automatic fatigue crack growth measurement system was developed, in which a special four-channel A-D acquisition board that could collect data in phase was used. The data collecting frequency is in the range of 4×(2~25600)Hz. The system is suitable for fatigue tests with the frequencies not higher than 250Hz. Eddy current transducers and standard load cell were used to measure displacement and load, respectively. The system can instantly calculate fatigue crack lengths, stress intensity factors and fatigue crack growth rates. As an application of the system, fatigue crack growth rates (FCG) and the thresholds of steels 42CrV and IR3Mo were presented.

A dedicated illumination system for fatigue crack-growth measurement

Measurement ◽  
2016 ◽  
Vol 90 ◽  
pp. 85-93 ◽  
Author(s):  
Paulo J. Tavares ◽  
Nuno Viriato ◽  
A.P. Vaz ◽  
P.M.G.P. Moreira
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Measurement ◽  
Illumination System

A study on creep-fatigue crack growth measurement methods of Cr-Mo-V cast steel

2003 ◽  
Vol 2003 (0) ◽  
pp. 427-428 ◽  
Author(s):  
Hiroki GOTOU ◽  
Kiyotaka AOKI ◽  
Yasuharu CHUMAN ◽  
Takumi TOKIYOSHI ◽  
Yasufumi GOTO
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Cast Steel ◽  
Measurement Methods ◽  
Growth Measurement ◽  
Creep Fatigue ◽  
Creep Fatigue Crack
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