Survivability of integrated fiber Bragg grating sensors in ballistic protection fabrics for high velocity impact testing
Optical Fiber Technology, ISSN: 1068-5200, Vol: 60, Page: 102356
2020
- 6Citations
- 8Captures
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Article Description
This research demonstrates that fiber Bragg grating (FBG) strain sensors can survive and provide useful strain information when integrated into a woven fabric subjected to ballistic impact testing. In this work, FBGs were integrated into a single-layer, Kevlar® fabric, sensing mat, placed between a 30-layer Kevlar® fabric shoot pack and clay backing material, and then impacted with an 8.23 g, 12.69 mm diameter, steel ball bearing at velocities up to 285 m/s. Three different optical fiber types, with differing fiber coatings and fiber diameters, were tested. The FBG strain response was determined from the full-spectrum FBG response which was interrogated at 100 kHz throughout the impact event. The difference in FBG strain response for the different coatings and fiber diameters were compared. Additionally, the degradation of the coatings after repeated impacts were visually characterized, showing that smaller diameter fibers behaved better with a more elastic coating.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1068520020303461; http://dx.doi.org/10.1016/j.yofte.2020.102356; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85091657239&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S1068520020303461; https://api.elsevier.com/content/article/PII:S1068520020303461?httpAccept=text/xml; https://api.elsevier.com/content/article/PII:S1068520020303461?httpAccept=text/plain; https://dul.usage.elsevier.com/doi/; https://dx.doi.org/10.1016/j.yofte.2020.102356
Elsevier BV
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