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Abstract Band gaps for the two kinds of magneto-electro-elastic quasi-periodic structures with Fibonacci sequence, one is the piezoelectric/(elastic/piezomagnetic) and the other is the (piezoelectric/elastic)/piezomagnetic are studied by the transfer matrix methods. The normal incidence case for the shear waves (SV waves) is considered. The localization factors and displacement transmitted coefficients are computed and its band gaps are compared with the corresponding perfect periodic structures. The results show that the band gaps of the two structures are quite different. The band gaps for the (piezoelectric/elastic)/piezomagnetic quasi-periodic structures are indeed similar with those of the pure elastic structures with Fibonacci sequence.
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Received: 20 October 2010
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2012, Vol. 33 
