ISSN:
1573-4862
Keywords:
ultrasonic diffraction
;
fatigue cracks
;
crack closure
;
crack surfaces
;
NDE
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Mathematics
Notes:
Abstract This paper describes an ultrasonic diffraction technique for characterizing fatigue cracks. The angular field of energy scattered from a crack tip was computed. Using the theoretically predicted and experimentally verified optimum range of angles, we measured the crack profiles by the ultrasonic diffraction technique. Ultrasonic measurements agreed very well with direct destructive measurements. In addition, fatigue crack closure was detected and information on crack surfaces was obtained.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00566228
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