Figure 5. a Relative Amplitude vs. Relative distance from fixed end (3rdmode of vibration), b Magnified view at the first crack location (β1=0.25), c Magnified view at the second crack location (β1=0.5)

From

Damage Identification in Composite Beam by Vibration Measurement and Fuzzy Inference System

Irshad Ahmad Khan, Dayal Ramakrushna Parhi

Journal of Mechanical Design and Vibration. 2015, 3(1), 8-23 doi:10.12691/jmdv-3-1-2