TITLE

Evidence of complete band gap and resonances in a plate with periodic stubbed surface

AUTHOR(S)
Tsung-Tsong Wu; Zi-Gui Huang; Tzu-Chin Tsai; Tzung-Chen Wu
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/15/2008, Vol. 93 Issue 11, p111902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, we numerically and experimentally demonstrate the existence of complete band gaps and resonances in a plate with a periodic stubbed surface. Numerical results show that a complete band gap forms as the stub height reaches about three times the plate thickness. In the experiment, we used a pulsed laser to generate broadband elastic waves and used optical devices as well as point piezoelectric transducers to detect wave signals. The results show that the numerical predictions are in very good agreement with those measured experimentally. Remarkable resonances on the top surface of the stubs are found and discussed.
ACCESSION #
34555720

 

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