Detection of acoustic emission waves in composite plates by fiber optic sensors

The paper provides an analysis of acoustic emission signals recorded with fiber optic sensors during the propagation of ultrasonic waves in a polymer composite material. The fiber optic sensors for acoustic emission were constructed according to the scheme of an adaptive holographic interferometer....

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Bibliographic Details
Main Authors: Bashkov, O. V., Romashko, R. V., Khon, H., Bezruk, M. N., Zaikov, V. I., Bashkov, I. O.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic emission
Acoustic propagation
Acoustics
Charts
Composite materials
Composite structures
Emission analysis
Fiber optics
Optical fibers
Piezoelectricity
Plates (structural members)
Polymer matrix composites
Propagation
Propagation modes
Sensors
Wave propagation
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Summary:The paper provides an analysis of acoustic emission signals recorded with fiber optic sensors during the propagation of ultrasonic waves in a polymer composite material. The fiber optic sensors for acoustic emission were constructed according to the scheme of an adaptive holographic interferometer. Unlike piezoelectric sensors, fiber optic sensors are distributed type sensors. This imposes certain features on the detection of signals in plates in which fiber optic sensors are embedded. It is established that the spectrum of acoustic emission signals differs in different directions of wave propagation. The local maxima of the spectrum are determined by the mode of wave propagation in the plate in different directions and the location of fiber optic sensors.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5013694