Damage detection in composite materials using frequency response methods

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Impact damage identification in composite laminates using vibration testing (2014, unknown): “[25], Yam [26], Frieden et al.”
Detection of bolt load loss in hybrid composite/metal bolted connections (2004, result): “Similar results were presented by Kessler et al. [ 16 ] where the frequency response method was found to be reliable for detecting damage in simple composite structures, but information about damage type, size, location and orientation could not be obtained.”
An international review of laser Doppler vibrometry: Making light work of vibration measurement (2017, background): “The location of defects has been considered extensively [50-55] by analysing wave propagation, modal response or operational deflection shapes (ODS).”
Machine learning and structural health monitoring overview with emerging technology and high-dimensional data source highlights (2021, methodology): “Methods such as power spectral density (PSD), 158 cross spectral density (CSD), 159 impulse response function (IRF), 160 frequency response function (FRF), 161 and frequency domain decomposition (FDD), 162 are few of the methods that are frequently used.”