On bulk waves excited at a groove by Rayleigh waves

摘要

Characteristics of bulk waves generated by an incident Rayleigh wave at a groove discontinuity are studied in this paper. The groove, etched on top of a semiminus;infinite elastic substrate, is an elementary building block of a reflectorminus;array type of signal processing devices. The modeminus;conversion problem is treated by a boundary perturbation technique. Two types of bulk wave are excited, i.e.,pand sv waves. Their propagation and power characteristics are investigated.