10.14489/td.2019.12.pp.024-028

2019, 12 December

DOI: 10.14489/td.2019.12.pp.024-028

Derusova D. A., Vavilov V. P.
RESONANCE ULTRASONIC LASER VIBROMETRY OF MISCELLANEOUS DEFECTS IN GLASS FIBER REINFORCED PLASTIC
(pp. 24-28)

Abstract. It is demonstrated that, by using the technique of resonance ultrasonic laser vibrometry, the detectability of inserts of different nature strongly depends on an insert material and its location in a test object made of glass fiber reinforced plastic. The best inspection results have been obtained by providing a two-sided access to the test object with further combining results of vibroscanning obtained at different (resonance) frequencies. The most appropriate defects for applying the technique of laser vibrometry are discontinuities, such as voids and delaminations, which significantly change sample local rigidity.

Keywords: composite, insert, resonance ultrasonic laser vibrometry, resonance frequency.

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D. A. Derusova, V. P. Vavilov (National Research Tomsk Polytechnic University, Tomsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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DOI: 10.14489/td.2019.12.pp.024-028

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