Features of Elastic Wave Reflection in the Piezoelectric – Thin Solid Layer – Piezoelectric Structure
A study is made of the elastic (quasi) transverse wave reflection from a thin anisotropic layer sandwiched between two piezoelectric crystals of 4mm or 6mm symmetry with axes 4 (6) parallel to the interface but anti parallel to each other. It is shown that if the presence of the layer causes the transformation of the purely inhomogeneous interfacial wave into the leaky wave, then the coefficients of plane wave conversion will suffer strong and abrupt changes in phases and magnitudes within some narrow interval of the incident angles corresponding to the efficient resonant excitation of the leaky wave. Approximate expressions describing the behavior of the coefficients of conversion under such conditions are derived and analyzed.
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Document Type: Research Article
Publication date: 1998-05-01
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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