Analysis of macro-model composites with Fabry-Perot fiber-optic sensors

Brian R. Fogg; William V. Miller III; John J. Lesko; Gregory Paul Carman; Ashish M. Vengsarkar; Kenneth L. Reifsnider; Richard O. Claus

doi:10.1117/12.50161

1 December 1991 Analysis of macro-model composites with Fabry-Perot fiber-optic sensors

Brian R. Fogg, William V. Miller III, John J. Lesko, Gregory Paul Carman, Ashish M. Vengsarkar, Kenneth L. Reifsnider, Richard O. Claus

Author Affiliations +

Proceedings Volume 1588, Fiber Optic Smart Structures and Skins IV; (1991) https://doi.org/10.1117/12.50161
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

Fabry-Perot fiber optic sensors embedded within composite macromodels are shown to be useful in measuring strain concentrations introduced by damage events. Fiber sensors effectively detect the signature of the fracture as well as provide accurate information about the state of the host material. We show that the results obtained from fiber sensors and electrical strain gauges validate newly developed micromechanical theories. Fiber sensors with gauge lengths of 4 mm are shown to be capable of resolving strains on the order of 1 micro-epsilon. The composite macromodel is described in detail and future issues are addressed.

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Brian R. Fogg, William V. Miller III, John J. Lesko, Gregory Paul Carman, Ashish M. Vengsarkar, Kenneth L. Reifsnider, and Richard O. Claus "Analysis of macro-model composites with Fabry-Perot fiber-optic sensors", Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); https://doi.org/10.1117/12.50161

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