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Generalized thermoelastic band structures of Rayleigh wave in one-dimensional phononic crystals

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arxiv 1701.06522 v1 pith:545GDFNL submitted 2017-01-23 cond-mat.mtrl-sci

Generalized thermoelastic band structures of Rayleigh wave in one-dimensional phononic crystals

classification cond-mat.mtrl-sci
keywords bandrayleighwavegeneralizedphononicstructurescrystalsthermal
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We investigate generalized band structures of Rayleigh wave in 1-D phononic crystals in the context of Green-Nagdhi thermoelastic (TE) theory. Solutions of the coupled equations included thermal field are obtained firstly. Then according to boundary conditions, phase velocity is derived. The transfer matrix methodology is adopted in order to formulate the band structures of generalized TE Rayleigh wave. It is demonstrated that the band structure of TE Rayleigh wave is comprised of elastic and thermal bands. For Aluminum-Epoxy phononic crystal, the thermoelasticity can influence the transmission ability of band gaps as well as narrow down the band gap width.

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