ConferencePaper
Proceedings - IEEE Ultrasonics Symposium  (2009)

Quasi-periodic surface green's dyad of a piezoelectric half-space

Jerez-Hanckes, C; Laude, V

Keywords: model, excitations, waves, singularity, surface, decomposition, summation, wave, half-space, plane, formula, computation, devices, acoustic, function, directions, methods, transversal, piezoelectricity, longitudinal, ultrasonics, periodic, Dimensional, two, fast, Green's, Piezoelectric, Logarithmic, sagittal, Quasi-periodic, 2-D

Abstract

We present a complete computation of the surface x1-periodic piezoelectric Green's function based on the asymptotic decomposition method and Poisson's summation formula. Spectral poles associated to surface acoustic waves render plane waves as expected. Behavior at small speed - large slownesses - portrays an oscillatory decay along the transversal direction while logarithmic singularities show up for longitudinal wave-numbers close to zero. At the sagittal plane, singularities arise from the periodic excitation, in accordance to previous 2-D models. Finally, we discuss the fast computation of series and future improvements. ©2009 IEEE.

Más información

Título de la Revista: Proceedings - IEEE Ultrasonics Symposium
Editorial: Institute of Electrical and Electronics Engineers Inc.
Fecha de publicación: 2009
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-77952828334&partnerID=q2rCbXpz