Literature Review
Several methods exist that are used to identify and characterize fractures (Burnett, 2011). Seismic method is the most effective method of identifying aligned fracture sets. Aligned fracture sets render a rock seismically anisotropic; this implies that the velocities of seismic waves moving through the rock will depend on their direction of propagation (Verdon & Kendall, 2010). The way through which seismic anisotropy manifests itself includes azimuthal variation in reflection amplitudes (Hall & Kendall, 2000). Fromme (2011) investigated the scattering directivity of the A0 Lamb wave mode at through-thickness defects in aluminum plate from FE simulations (Zhou, Li, Mao, Mevel & Ou, 2013). There ...
