Spectral Ratios for Crack Detection Using P and Rayleigh Waves

Figure 3

Cracks subjected to the incidence of Rayleigh waves. (a) Horizontal displacements for crack depth ratios 𝑑/2𝑎=0.2 and 𝑑/2𝑎=1.0, (b) Vertical displacements for crack depth ratios 𝑑/2𝑎=0.2 and 𝑑/2𝑎=1.0, (c) Spectral ratio h/v for crack depths 𝑑/2𝑎=0.2, 0.4, 0.6 and 1.0.

(a)

(b)

(c)