Fatigue Crack Growth Measurement and Data Analysis

1981 ◽  
Keyword(s):  
Fatigue Crack ◽  
Data Analysis ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Measurement

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.

scholarly journals A three-parameter model for fatigue crack growth data analysis

2012 ◽  
Vol 6 (21) ◽  
pp. 21-29 ◽  
Author(s):  
A. De Iorio ◽  
M. Grasso ◽  
F. Penta ◽  
G.P. Pucillo
Keyword(s):  
Fatigue Crack ◽  
Data Analysis ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Data
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