Figure 13. Fuzzy membership functions for (1, 2, 3) relative natural frequency of first three bending mode of vibration, (4, 5, 6) relative mode shape difference of first three bending mode of vibration, (7, 8) first and second crack depth and (9, 10) first and second crack location

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