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Noise diagnostics of advanced composite materials for structural applications

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3 Author(s)
Koktavy, P. ; Fac. of Electr. Eng. & Commun., Brno Univ. of Technol., Brno, Czech Republic ; Trcka, T. ; Koktavy, B.

Our study is focused on noise diagnostics of an advanced composite material for structural applications called extren, which consists of a combination of a fibre glass reinforcement and a resin binder. Electromagnetic and acoustic emission signals appear during mechanical loading of the material under investigation. They carry information about micro-cracks generated in tested materials. We made long-time simultaneous multi-channel measurements of both signals for various loading conditions, carried out time development of noise spectrum, evaluated parameters of EME and AE events, studied their time development, correlations between them and made statistical analyses of signals and their parameters.

Published in:

Noise and Fluctuations (ICNF), 2011 21st International Conference on

Date of Conference:

12-16 June 2011