Anomalous Dispersion of the S 1 Lamb Mode
Author(s) -
Faiz Ahmad,
Takasar Hussain
Publication year - 2013
Publication title -
advances in acoustics and vibration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 14
eISSN - 1687-627X
pISSN - 1687-6261
DOI - 10.1155/2013/903934
Subject(s) - algorithm , dispersion (optics) , physics , computer science , optics
The S1 mode of the Lamb spectrum of an isotropic plate exhibits negative group velocity in a narrow frequency domain. This anomalous behavior is explained analytically by examining the slope of each mode first in its initial state and then near its turning points
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