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http://dx.doi.org/10.5139/JKSAS.2009.37.11.1089

Damage Detection in Composite Laminates using Tapping Sound  

Kim, Sung-Joon (한국항공우주연구원)
Hong, Chang-Ho (충남대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.11, 2009 , pp. 1089-1095 More about this Journal
Abstract
The radiated sound pressure induced by tapping test is obtained by solving the Rayleigh integral equation. For structurally radiated sound, the sound field is directly coupled to the structural motion. Therefore the impact response should be analyzed. In this paper, the delamination model is used to analyze the impact response of delaminated composite laminates. And efficient spring-mass model has been proposed to model hammer shaped impactor. Predicted sound pressure histories are compared with test data. The influence of damage on the sound pressure and impacted force history of laminates were investigated. The results show that both radiated sound pressure and impact force history are strongly influenced by delamination on laminates. As a result, it is shown that the presented sound based tapping method was found to be reliable for detecting the damage in composite laminate.
Keywords
Tapping Sound; Delamination; Sound Pressure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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