Fiber Optic Sensors For The Nondestructive Evaluation Of Composite Materials
- 3 January 1986
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 566, 159-165
- https://doi.org/10.1117/12.949782
Abstract
Twin-core and polarimetric fiber optic sensors have been embedded in composite plates and used to measure subsurface flexural and compressive bearing strains. Residual thermal stresses have been observed by measuring the change in the twin-core crosstalk with wave-length near the antisymmetric mode cutoff and subsurface crack initiation and growth has been detected with a subsurface twin-core sensor in a pin-loaded bolt hole fatigue test.© (1986) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.Keywords
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