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Proceedings Paper

Damage detection in woven-composite materials using embedded fiber-optic sensors
Author(s): Philippe Bonniau; Jean Chazelas; Jerome Lecuellet; Francois Gendre; Marc J. Turpin; Jean-Pierre Le Pesant; Michele Brevignon
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Paper Abstract

This paper presents our preliminary results on the use of fiber optic sensors for impact detection on Kevlar-epoxy panels. Interfero-polarimetric measurements have been performed by using two different kinds of polarization-maintaining optical fibers. The sensitivity of the fibers to internal process stresses and to external impact stresses is discussed with respect to the coating nature. The effect of an over-coating on the fiber sensitivity is also reported. Impact-induced delaminations have been observed and the optical response has been adjusted by using an appropriate over-coating.

Paper Details

Date Published: 1 December 1991
PDF: 12 pages
Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); doi: 10.1117/12.50164
Show Author Affiliations
Philippe Bonniau, Thomson-CSF (France)
Jean Chazelas, Thomson-CSF (France)
Jerome Lecuellet, Thomson-CSF (France)
Francois Gendre, Thomson-CSF (France)
Marc J. Turpin, Thomson-CSF (France)
Jean-Pierre Le Pesant, Thomson-CSF (France)
Michele Brevignon, Thomson-CSF (France)

Published in SPIE Proceedings Vol. 1588:
Fiber Optic Smart Structures and Skins IV

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