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Asymmetric Lamb wave propagation in phononic crystal slabs with graded grating
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10.1063/1.4804323
/content/aip/journal/jap/113/18/10.1063/1.4804323
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4804323
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of graded grating phononic crystal slabs.

Image of FIG. 2.
FIG. 2.

The band structures of Lamb waves (a) and normalized transmission power spectra of A mode (b) for  mm. The inset of Fig. 2(a) shows the band structures of Lamb waves for a cubic medium (Tungsten) of 2 mm thickness plate. The band structures of Lamb waves (c) and normalized transmission power spectra of A mode (d) for mm.

Image of FIG. 3.
FIG. 3.

The transmissions of A mode that incident from forward (blue line) and backward (red line) directions for the first designed structure (a) by EMMT method (b) FM method. (c) Steady-state displacement fields under A mode source in forward and backward direction at = 298.2 kHz.

Image of FIG. 4.
FIG. 4.

The band structures of Lamb waves (a) and normalized transmission power spectra of A mode (b) for mm. The transmissions of A mode that incident from forward (blue line) and backward (red line) directions for the second designed structure (c) by EMMT method and (d) FM method. (e) Steady-state displacement fields under A mode source in forward and backward directions at = 550 kHz.

Image of FIG. 5.
FIG. 5.

The transmissions of A mode that incident from forward (blue line) and backward (red line) directions for the two particular cases: (a) N = 5 and (b) N = 15.

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/content/aip/journal/jap/113/18/10.1063/1.4804323
2013-05-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Asymmetric Lamb wave propagation in phononic crystal slabs with graded grating
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4804323
10.1063/1.4804323
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