Fiber Optic Architectures for Strain Monitoring of Solid Rocket Motors' Propellant
Polymer Optical Fibers embedded with excellent bonding characteristics to the propellant material of Solid Rocket Motors are demonstrated as an efficient sensing platform for guided missiles' structural health monitoring. Further to the successful incorporation of bare POF and jacketed POF cables longitudinally in to the propellants, it is also proposed for the first time the POF integration with an embedded strain-sensitive closed-loop fiber segment. The intrinsic elasticity of the POFs and also the macro-bend originated losses under strain provide monitoring capability for strain and stress much higher than 10%. Additionally resulted plastic deformation of POFs in excessively high strains, is proposed to serve as a data/event logger important for recording materials' stress history.
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Document Type: Research Article
Publication date: 01 August 2013
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