System consisting of commerical ultrasonic flaw detector with transducer clamped to specimen and x-yy' recorder provides permanent record of crack extension, resulting in clear indication of onset of cracking that is relatively insensitive to plastic deformation.
Ultrasonic monitoring of crack extension
NASA Tech Briefs ; 1 , 4
1977-03-01
Miscellaneous
No indication
English
Estimating The Crack-Extension-Resistance Curve
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|Uncertain theory for fatigue crack extension
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|Ultrasonic Monitor To Determine Crack-Opening Load
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