Damage detection in woven-composite materials using embedded fiber-optic sensors

Philippe Bonniau; Jean Chazelas; Jerome Lecuellet; Francois Gendre; Marc J. Turpin; Jean-Pierre Le Pesant; Michele Brevignon

doi:10.1117/12.50164

1 December 1991 Damage detection in woven-composite materials using embedded fiber-optic sensors

Philippe Bonniau, Jean Chazelas, Jerome Lecuellet, Francois Gendre, Marc J. Turpin, Jean-Pierre Le Pesant, Michele Brevignon

Author Affiliations +

Proceedings Volume 1588, Fiber Optic Smart Structures and Skins IV; (1991) https://doi.org/10.1117/12.50164
Event: OE Fiber, 1991, Boston, MA, United States

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.

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Philippe Bonniau, Jean Chazelas, Jerome Lecuellet, Francois Gendre, Marc J. Turpin, Jean-Pierre Le Pesant, and Michele Brevignon "Damage detection in woven-composite materials using embedded fiber-optic sensors", Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); https://doi.org/10.1117/12.50164

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