Abstract
It is shown that a shear vertical (SV) wave propagating along a surface of a test object can be transmitted and received by angle probes whose angle of refraction is close to a critical angle. In order to investigate this phenomenon, simulation is carried out using the finite difference time domain method. According to the acoustic fields obtained by the simulation, the beam width of a SV wave increases with propagation, and energy associated with the SV wave exists at the surface. Therefore, the transmitted pulse can be received. The phenomenon of SV wave propagation is referred to as SVC (SV wave for a critical angle). This simulation result is verified by an experiment, which showed that the transmitted pulse is applicable to the measurement of SV wave velocity.
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