We present the first experimental investigation of a Sierpinski carpet structure. This was constructed from piezoelectric square plates embedded in a polymer matrix according to a 4th generation Sierpinski carpet. The resonant frequencies and vibrational displacement patterns have been measured. Experimental evidence for the existence of localised modes, together with a simple model for the estimation of the spectral density of states d, are presented.
Acoustic modes in 2-dimensional composite plates / Alippi, Adriano; Bettucci, Andrea; F., Craciun; F., Farrelly; E., Molinari; A., Petri. - 1:(1993), pp. 533-536. (Intervento presentato al convegno 1993 IEEE Ultrasonoic Symposium tenutosi a Baltimora, USA) [10.1109/ULTSYM.1993.339553].
Acoustic modes in 2-dimensional composite plates
ALIPPI, Adriano
;BETTUCCI, Andrea;
1993
Abstract
We present the first experimental investigation of a Sierpinski carpet structure. This was constructed from piezoelectric square plates embedded in a polymer matrix according to a 4th generation Sierpinski carpet. The resonant frequencies and vibrational displacement patterns have been measured. Experimental evidence for the existence of localised modes, together with a simple model for the estimation of the spectral density of states d, are presented.| File | Dimensione | Formato | |
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