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Symmetry effects on elastic wedge waves at anisotropic edges
- A laser-operated, angle-tunable transducer was employed to excite selectively elastic waves guided along the apex of a solid wedge. The propagation of wedge waves at anisotropic monocrystalline silicon edges with different symmetry properties was studied by optical detection. The reduced symmetry in crystals, as compared to isotropic media, causes a number of new features, such as the existence ofA laser-operated, angle-tunable transducer was employed to excite selectively elastic waves guided along the apex of a solid wedge. The propagation of wedge waves at anisotropic monocrystalline silicon edges with different symmetry properties was studied by optical detection. The reduced symmetry in crystals, as compared to isotropic media, causes a number of new features, such as the existence of supersonic leaky wedge waves, tilted spatial pulse profiles, and other peculiarities of their localization. Experimental and theoretical results are presented for three different types of symmetry configurations: the wedge symmetric about its midplane, the wedge symmetric about the plane normal to its apex line, and the wedge symmetric about one of its faces. The experiments include accurate measurements of the phase velocity and the wave field distribution, providing information on localization and coupling of wedge waves with other waves. Theoretically, the wedge waves were treated by the Laguerre function method, extended to modes that are not localized at the tip of the wedge. This approach allowed an accurate description of the observed localized and leaky wedge waves in anisotropic wedges.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/1838 | Bibliografische Angaben |
Title (English): | Symmetry effects on elastic wedge waves at anisotropic edges |
Author: | Pavel Dmitrievich PupyrevStaff MemberORCiDGND, Alexey M. LomonosovStaff MemberORCiDGND, Peter Hess, Andreas MayerStaff MemberGND |
Year of Publication: | 2014 |
Creating Corporation: | American Institute of Physics |
First Page: | 1 |
Last Page: | 11 |
Parent Title (English): | Journal of applied physics |
Volume: | 115 |
Issue: | 24 |
ISSN: | 0021-8979 |
DOI: | https://doi.org/10.1063/1.4884837 |
URL: | https://www.researchgate.net/publication/263583188 |
Language: | English | Inhaltliche Informationen |
Institutes: | Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) |
Institutes: | Bibliografie |
GND Keyword: | Elastizität; Keilwelle; Symmetrie | Formale Angaben |
Open Access: | Open Access |
Licence (German): | ![]() |