| Title | High frequency propagation in structured solids |
| Publication Type | Conference Paper |
| Year of Publication | 2007 |
| Authors | Harris, P.D., Dawson A., Young R., and Lecarpentier F. |
| Conference Name | Proceedings - IEEE Ultrasonics Symposium |
| Date Published | 2007 |
| Keywords | Aluminium sheet, Aluminum cladding, Anisotropic behaviors, Crack propagation, Critical angles, Extruded rods, High frequencies, High frequency propagation, Light metals, Microstructure, Plastics, Polymers, Porous, Propagation, Ultrasonic wave propagation, Ultrasonics, Wave fronts |
| Abstract | In this work high frequency ultrasonic wave propagation in an immersed porous aluminium sheet is modelled and the results verified by experiment using focused broadband 50MHz waves. The sample microstructure has a profound influence on the propagation which occurs as a single wavefront and facilitates transmission at angles far greater than the critical angles for a homogeneous solid. We also found that, in addition to specialist plastics, some common plastic extruded rods usually considered homogeneous exhibit anisotropic behavior. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-48149109081&partnerID=40&md5=9acd0c7858f1b35609db44c0acd9fb02 |
| DOI | 10.1109/ULTSYM.2007.178 |
