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Nonlinear surface acoustic waves: Theory

  • A theoretical description is given for the propagation of surface acoustic wave pulses in anisotropic elastic media subject to the influence of nonlinearity. On the basis of nonlinear elasticity theory, an evolution equation is presented for the surface slope or the longitudinal surface velocity associated with an acoustic pulse. It contains a non-local nonlinearity, characterized by a kernel thatA theoretical description is given for the propagation of surface acoustic wave pulses in anisotropic elastic media subject to the influence of nonlinearity. On the basis of nonlinear elasticity theory, an evolution equation is presented for the surface slope or the longitudinal surface velocity associated with an acoustic pulse. It contains a non-local nonlinearity, characterized by a kernel that strongly varies from one propagation geometry to another due to the anisotropy of the substrate. It governs pulse shape evolution in homogeneous halfspaces and the shapes of solitary surface pulses that exist in coated substrates. The theory describing nonlinear Rayleigh-type surface acoustic waves is extended in a straightforward way to surface waves that are localized at a one-dimensional acoustic waveguide like elastic wedges.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/3505
Bibliografische Angaben
Title (English):Nonlinear surface acoustic waves: Theory
Conference:International Congress on Ultrasonics 2007 : ICU 2007, April 9-12, 2007, Vienna, Austria
Author:Andreas MayerStaff MemberGND
Date of Publication (online):2008/06/20
Publisher:Elsevier
First Page:478
Last Page:481
Parent Title (English):Ultrasonics : Selected Papers from ICU 2007
Volume:48
Issue:6/7
ISSN:0041-624X
DOI:https://doi.org/10.1016/j.ultras.2008.06.009
Language:English
Inhaltliche Informationen
Institutes:Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019)
Institutes:Bibliografie
GND Keyword:Akustik; Oberfläche; Welle
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt