Re: Lamb wave attenuation Hello Kashif, Sorry, I don't have an English version of my thesis, but parts of the main chapters are published english papers that you can find on my website: http://membres.tripod.fr/SWAM/SWAM/publi.htm In these papers (ref 11 and 14), you will find several methods (Surface Wave Analysis Methods SWAM), for measuring both attenautation and wave numbers of Lamb waves. See also the excellent papers of Vollman and Dual in JASA. I'm now doing my research in Paris, so feel free to contact me for more experimental details/meeting.
Success in your investigation.
Loic Martinez Laboratoire d'Electronique Appliquée de Cergy