Figure 9
From: Experimental evidence of shear waves in fractional viscoelastic rheological models

Time-space representation of the particle displacement due to the shear wave propagation for the illustrative case in plane A. The propagation of the shear wave was recorded for 25 ms. The r coordinate ranged from 4 to 15.5 mm, with r = 0 corresponding to the centre of the disk emitter, and the inclusion front face at approximately r = 15 mm. Although the driving signal was a single sinusoidal cycle, the displacement of the emitter (visible at r = 4–5.5 mm) showed a noticeable extension due to the inertia of the phantom.