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http://dx.doi.org/10.5139/JKSAS.2004.32.3.030

Resonance Type Acoustic Emission Signal Analyzing Method for the failure detection of the composite materials  

Lee, Chang-Hun (경상대학교 기계항공공학부 항공기부품기술연구센터)
Choi, Jin-Ho (경상대학교 기계항공공학부 항공기부품기술연구센터)
Kweon, Jin-Hwe (경상대학교 기계항공공학부 항공기부품기술연구센터)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.3, 2004 , pp. 30-36 More about this Journal
Abstract
As fiber reinforced composite materials are widely used in aircraft, space structures and robot arms, the study on the non-destructive testing methods of the composite materials has become an important research area for improving their reliability and safety. In this paper, the AE signal analyzer with the resonance circuit to extract the specified frequency of the acoustic emission signal were designed and fabricated. The noise levels of the fabricated AE signal analyzer by the disturbance such as impact or mechanical vibration had a very small value comparable to those of the conventional AE signal analyzer. Also, the fabricated AE signal analyzer was proved to have about the same crack detection capabilities with the conventional AE signal analyzer under the static and dynamic tensile tests of the composite materials.
Keywords
Acoustic Emission; Resonance Circuit;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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