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Experimental evidence for the existence of absolute acoustic band gaps in two-dimensional periodic composite media
1998
Journal of Physics: Condensed Matter
Preserved Fulltext
Transmission of acoustic waves in two-dimensional binary solid/solid composite media composed of arrays of Duralumin cylindrical inclusions embedded in an epoxy resin matrix is studied. The experimental transmission spectrum and theoretical band structure of two periodic arrays of cylinders organized on a square lattice and on a centred rectangular network are reported. Absolute gaps extending throughout the first two-dimensional Brillouin zone are predicted. The measured transmission is
doi:10.1088/0953-8984/10/27/006
fatcat:jeal3ejtpfc2jn64diprnnxesq