Interdigital Piezopolymer Transducers for Time of Flight Measurements with Ultrasonic Lamb Waves on Carbon-Epoxy Composites under Pure Bending Stress

Figure 17

(a) Four series of data acquired in static conditions. The measurements are relative to the loading phase of pure bending stress. The continuous line shows the quadratic fitting. (b) Four series of data acquired in static conditions. The measurements are relative to the loading phase of pure bending stress. The continuous line shows the quadratic fitting.

(a)

(b)