Fatigue crack growth threshold at cryogenic temperatures: A review

1985 ◽  
Vol 22 (4) ◽  
pp. 585-594 ◽  
Author(s):  
P.K. Liaw ◽  
W.A. Logsdon
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Cryogenic Temperatures ◽  
Growth Threshold

GSM Modem and Industrial Camera Aided Unattended Automatic Fatigue Testing Technology

2013 ◽  
Vol 694-697 ◽  
pp. 1306-1309
Author(s):  
Jia Jun Liu ◽  
Zhen Guo Sun ◽  
Wei Ming Zhang ◽  
Qiang Chen ◽  
Ji Min Xu
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Remote Monitoring ◽  
Fatigue Testing ◽  
Labor Cost ◽  
Testing System ◽  
Threshold Test ◽  
Testing Technology ◽  
Growth Threshold

In order to reduce the time and labor cost, an unattended testing system which can be monitored remotely for fatigue crack growth threshold test was developed. Compliance technique is used to measure fatigue crack length automatically. GSM modem and industrial camera are utilized to realize remote monitoring. Fatigue crack growth threshold test on J2 steel, which is used on the wheel of high-power locomotive, has been carried out with the developed system. The testing process and results demonstrated the safety and efficiency of the system.

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