On the number and location of zero-group-velocity modes
The frequency-wavenumber spectra of laminated media often exhibit anomalous modes with descending branches whose group velocity is negative, and these terminate at a minimum point at which the group velocity transitions from negative to positive. These minima are associated with resonant conditions...
Main Author: | Kausel, Eduardo A. |
---|---|
Other Authors: | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
Format: | Article |
Language: | en_US |
Published: |
Acoustical Society of America (ASA)
2013
|
Online Access: | http://hdl.handle.net/1721.1/78901 |
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