Title :
Time-resolved acoustic microscopy of short cracks
Author :
Briggs, G.A.D. ; Zhai, T.
fDate :
31 Oct-3 Nov 1993
Abstract :
Time-resolved acoustic microscopy has been used to measure the 3-dimensional profile of short cracks (70-200 μm surface length). In order to establish this technique the depth of short cracks in transparent materials were determined. This allows a comparison between the acoustic and direct optical measurements. Subsequently the depth of cracks and the growth of short fatigue cracks in Al-alloy were measured
Keywords :
acoustic microscopy; crack detection; fatigue cracks; ultrasonic materials testing; crack depth; short cracks; short fatigue cracks; time-resolved acoustic microscopy; Acoustic materials; Acoustic measurements; Acoustic pulses; Diffraction; Geometry; Lenses; Microscopy; Optical materials; Surface cracks; Surface waves;
Conference_Titel :
Ultrasonics Symposium, 1993. Proceedings., IEEE 1993
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1993.339540
