Band Gaps of SH Wave in Piezoelectric Phononic Crystal

Abstract:

The dispersive characteristic of anti-plane elastic waves propagating through laminated piezoelectric phononic crystal is studied in this paper. First, the transfer matrix method (TMM) and the Bloch theorem are used to derive the dispersion equation. Next, the dispersion equation is solved numerically and the dispersive curves are shown in Brillouin zone. The pass band and the stop band of anti-plane SH wave propagating perpendicular to and oblique to the laminated periodic structure are compared. The effects of the slope angle on the wave band structure are discussed.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 1486-1489
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.1486
• Online since: May 2011
• Authors: Man Lan, Pei Jun Wei
• Keywords: Bandgap, Bloch Wave, Laminated Structure, Piezoelectricity, Transfer Matrix Method (TMM)

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