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Published January 3, 2022 | public
Book Section - Chapter

Health Monitoring of High Strain Composites Using Embedded Fiber Bragg Grating Sensors

Abstract

A study on the use of fiber Bragg grating sensors to measure strains in thin-walled composite structures is presented. It includes measurement of the gage factor, or strain conversion coefficient, of small diameter fiber optic sensors. Fiber Bragg grating sensor arrays were embedded into high strain composites and the buildup of strains during manufacturing was tracked. μCT scans of these composites were taken after curing to analyze the micro-structure in the regions surrounding the embedded sensors. Composite laminates with embedded sensors were subjected to a controlled coiling experiment to evaluate the accuracy of the sensors in measuring internal strains.

Additional Information

© 2022 by Brayden Aller, Sergio Pellegrino, Nathan Kinkaid, Juan Mejia-Ariza, Richard Otis, Patrick Hon Man Chan and Francisco Pena. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.

Additional details

Created:
August 20, 2023
Modified:
October 23, 2023