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COMEC 2013 >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/378
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| Title: | ON THE SONIC COMPOSITES WITH DEFECTS |
| Authors: | GIRIP, Iulian
IOAN, Rodica
POPESCU, Mihaela Alexandra
MUNTEANU, Ligia
CHIROIU, Veturia |
| Keywords: | Sonic composites
sound attenuation
defects
evanescent waves
full band-gaps |
| Issue Date: | 24-Oct-2013 |
| Publisher: | EDITURA UNIVERSITĂŢII TRANSILVANIA DIN BRAŞOV |
| Series/Report no.: | ;171 - 178 |
| Abstract: | The sound attenuation in a sonic composite with point defects is studied using a new method that combines the features of the cnoidal method and the genetic algorithm. Acoustic scatterers are composed by piezoceramic hollow spheres of functionally graded materials - the Reddy and cosine graded hollow spheres. This method enables to obtain the dispersion relation for defect modes, and the prediction of the evanescent nature of the modes inside the band-gaps. |
| URI: | http://hdl.handle.net/123456789/378 |
| ISBN: | 978 – 606 – 19 – 0225 – 5 |
| Appears in Collections: | COMEC 2013
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