Detection of Crack Locations in Aluminum Alloy Structures Using FBG Sensors.

Sensors (Basel) · 2020 · PMC7014459 · PMID 31936254

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an increasing trendno p-value reported

Next, with the crack propagation near the FBGs, the inhomogeneous plastic zone formed ahead of the crack tip will approximately cross the grating, creating spectral distortion and even a primary peak splitting, and the FWHM has an increasing trend.

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