Rayleigh-wave attenuation by a semi-infinite two-dimensional elastic-band-gap crystal
- 15 May 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 59 (19), 12169-12172
- https://doi.org/10.1103/physrevb.59.12169
Abstract
In this paper, we report experiments on the scattering of surface-elastic waves by a periodic array of cylindrical holes. The experiments were performed in a marble quarry by drilling cylindrical holes in two different configurations: honeycomb and triangular lattices. The attenuation spectra of the surface waves show the existence of absolute band gaps for elastic waves in these semi-infinite two-dimensional crystals. Results are compared with theoretical calculations based on a scalar-wave approach. The scaling property of the underlying theory has led us to explore the possible application of the results obtained to the attenuation of surface waves in seismic movements.Keywords
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