Detection of composite damage by IR NDT using ultrasonic excitation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13420%2F19%3A43895111" target="_blank" >RIV/44555601:13420/19:43895111 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/matecconf/201925405004" target="_blank" >http://dx.doi.org/10.1051/matecconf/201925405004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/201925405004" target="_blank" >10.1051/matecconf/201925405004</a>

Result language
angličtina
Original language name
Detection of composite damage by IR NDT using ultrasonic excitation
Original language description
The submitted paper presents experience with detection of damaged composites by means of an ultrasonic excitation system in comparison with an optic system of excitation. In case of the ultrasonic excitation system is a high-frequency signal modulated by lock-in frequency. For a selection of the carrier signal we measured a response of a sample to sweep excitation and a sample resonance was defined by means of STFT. Consequently, the method lock-in was applied for detection. In case of the optic excitation system we applied several suitably selected frequencies with an aim to obtain information from various depths of the measured object. Results of measurements are presented in composite samples of CFRP.
Czech name
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Czech description
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Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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