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DETECTION OF INTERFACIAL CRACK LENGTH BY USING ULTRASONIC ATTENUATION COEFFICIENTS ON ADHESIVELY BONDED JOINTS  

Chung, N.Y. (Department of Mechanical Engineering, Soongsil University)
Park, S.I. (Department of Mechanical Engineering, Graduate School, Soongsil University)
Publication Information
International Journal of Automotive Technology / v.5, no.4, 2004 , pp. 303-309 More about this Journal
Abstract
In this paper, an interfacial crack length has been detected by using the ultrasonic attenuation coefficient on the adhesively bonded double-cantilever beam (DCB) joints. The correlations between energy release rates which were investigated by experimental measurement, the boundary element method (BEM) and Ripling's equation are compared with each other. The experimental results show that the interfacial crack length for the ultrasonic attenuation coefficient and energy release rate increases proportionally. From the experimental results, we propose a method to detect the interfacial crack length by using the ultrasonic attenuation coefficient and discuss it.
Keywords
Acoustic impedance; Adhesively bonded joint; Attenuation coefficient; Boundary element method; Compliance; Double-cantilever beam; Energy release rate; Interface crack; Transmission coefficient; Ultrasonic test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
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