| Numéro |
J. Phys. IV France
Volume 04, Numéro C5, Mai 1994
3ème Congrés français d'acoustique3rd French conference on acoustics |
|
|---|---|---|
| Page(s) | C5-693 - C5-696 | |
| DOI | https://doi.org/10.1051/jp4:19945148 | |
3ème Congrés français d'acoustique
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-693-C5-696
DOI: 10.1051/jp4:19945148
Département de Recherches Physiques, Université P & M Curie, T22, Boîte 136, 4 place Jussieu, 75252 Paris cedex 05, France
© EDP Sciences 1994
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-693-C5-696
DOI: 10.1051/jp4:19945148
Propagation d'ondes acoustiques dans des empilements faiblement désordonnés
C. CONSTANTOPOULOS and B. PERRINDépartement de Recherches Physiques, Université P & M Curie, T22, Boîte 136, 4 place Jussieu, 75252 Paris cedex 05, France
Abstract
This work is devoted to a numerical study of transverse waves localization propagating along the stacking axis of random alternating Fe-Cu layers. The randomness is introduced through fluctuations of the layer thickness. For a weak disorder, the calculated localization length is in good agreement with the theoretical (asymptotic) predictions as far as a large number of plies (5000) is considered. For a more realistic number of plies, from an experimental point of view (200<N<500), large discrepancies appear due to the weak acoustic contrast at the interface Cu-Fe.
© EDP Sciences 1994