Determination of fracture parameters using embedded fiber-optic sensors
Date of Original Version
The applicability of embedded fiber-optic sensors for the determination of fracture parameters is demonstrated. A Mach-Zehnder interferometric setup is used and mode-1 stress-intensity factors are obtained by embedding single-mode fibers in single-edge-notched specimens fabricated from Plexiglas. Optical fibers are embedded in-plane to measure axial strains at various depths and also in the transverse direction to measure the transverse strains, from which stress-intensity factors are determined. In both cases the experimental results compare well with the theoretical predictions. © 1991 Society for Experimental Mechanics, Inc.
Narendran, N., A. Shukla, and S. V. Letcher. "Determination of fracture parameters using embedded fiber-optic sensors." Experimental Mechanics 31, 4 (1991): 360-365. doi:10.1007/BF02325994.