Research Article

Excitation and Propagation of Longitudinal L (0, 2) Mode Ultrasonic Guided Waves for the Detection of Damages in Hexagonal Pipes: Numerical and Experimental Studies

Figure 10

Contours of the displacement filed along the axial direction: (a) L (0, 2) mode and (b) L (0, 1) mode.
(a)
(b)