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An intensity based optical fiber sensor for low velocity impact detection in unidirectional composites

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Authors
Uskoković, Petar S.
Brajović, Ljiljana
Simić, M
Putić, S
Aleksić, Radoslav
Article (Published version)
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Abstract
Prevention df serious damage of composite structures might be achieved by inspecting the structural integrity during exploitation. This paper decribes the design and development of a promising optical fiber sensor system for low velocity impact detection in unidirectional composite that does not have a laminate structure. Obtained results showed that light in multimode fibers embedded in glass-fiber reinforced epoxy unidirectional composites is attenuated during the time of the impact load. Microstructural analysis of the fracture surfaces obtained from mechanically fractured samples was carried out to examine the failure mode of the composite host with embedded optical fibers.
Keywords:
undirectional composites / three-point bending impact / embedded optical fiber / signal attenuation
Source:
Advanced Composite Materials, 2000, 9, 3, 175-185

DOI: 10.1163/15685510051033340

ISSN: 0924-3046

WoS: 000165635600002

Scopus: 2-s2.0-0347999489
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URI
http://grafar.grf.bg.ac.rs/handle/123456789/14
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