Structural health monitoring using scanning laser vibrometry: III. Lamb waves for fatigue crack detection

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A Lamb-wave-based technique for damage detection in composite laminates (2009, background): “It has been shown by Mallet et al. (2004) that the response signal collected by laser vibrometer and piezoelectric transducer are practically identical.”
Automated detection of delamination and disbond from wavefield images obtained using a scanning laser vibrometer (2011, unknown): “Previous works in this field include the detection of fatigue cracks from the variation of the ultrasonic amplitude profile [14, 15] and the use of f –k domain filtering to locate scatterers in the ultrasonic medium, some of which could be defects [16].”
Delamination detection in composites through guided wave field image processing (2011, background): “Previous works in this field include detecting fatigue cracks from the variation of ultrasonic amplitude profile [13,14] and using frequency-wavenumber domain filtering to locate scatters in the ultrasonic medium, some of which could be defects [15].”
Structural health monitoring using scanning laser vibrometry: I. Lamb wave sensing (2004, methodology): “The application for damage detection using a scanning laser vibrometer is reported in [34].”