2004•Transactions of the Korean Society of Mechanical Engineers ARequires access
Measurement of Crack Length by Ultrasonic Attenuation Coefficient
정남용, 박성일
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Abstract
In this paper, the ultrasonic attenuation coefficient was measured by variation of crack length for double-cantilever beam(DCB) specimen. The energy release rate, G, was obtained by the experimental measurement of compliance. The experimental results represents that the crack length for the ultrasonic attenuation coefficient and energy release rate is increases proportionally. From the experimental results, we proposed a detecting method of the crack length by the ultrasonic attenuation coefficient and discussed it.