Fig. 3.
From: Simulations of P-SV wave scattering due to cracks by the 2-D finite difference method
Displacement discontinuity along an isolated crack due to a normal incidence of harmonic P or SV waves: (a) normal displacement discontinuity due to P waves, and (b) shear displacement discontinuity due to SV waves. The abscissas represent the distance from the center of the crack. The curve parameters denote ka. The solid and dashed lines indicate the calculations based on the present FDM and the BIEM of Kawahara and Yamashita (1992), respectively.