Acoustic waves in solid and fluid layered materials

EH El Boudouti, B Djafari-Rouhani, A Akjouj… - Surface Science …, 2009 - Elsevier
This is a comprehensive theoretical survey of acoustic wave propagation in layered
materials including elastic, viscoelastic and piezoelectric layers. The phonon modes are …

Polarization state and level repulsion in two-dimensional phononic crystals and waveguides in the presence of material anisotropy

Y Achaoui, A Khelif, S Benchabane… - Journal of Physics D …, 2010 - iopscience.iop.org
We investigate the polarization of Bloch waves in two-dimensional piezoelectric phononic
crystals and phononic crystal waveguides managed therein. It is found that in addition to the …

Effects of Poisson's ratio on the band gaps and defect states in two-dimensional vacuum/solid porous phononic crystals

XX Su, YF Wang, YS Wang - Ultrasonics, 2012 - Elsevier
The effects of the Poisson's ratio of the solid host on the band gaps and point defect states of
the mixed elastic wave modes in two-dimensional vacuum/solid porous PNCs are studied by …

Measurement of frequency gaps and waveguiding in phononic plates with periodic stepped cylinders using pulsed laser generated ultrasound

JC Hsu, TT Wu, HS Hsu - Journal of Applied Physics, 2013 - pubs.aip.org
In this paper, we theoretically and experimentally study phononic band gaps and
waveguiding for plate-mode acoustic waves in a square array of stepped cylinders coated …

Flexural vibrations of a rectangular plate for the lower normal modes

B Manzanares-Martínez, J Flores, L Gutiérrez… - Journal of sound and …, 2010 - Elsevier
Theoretical and experimental results for flexural waves of a rectangular plate with free ends
are obtained. Both the natural frequencies and mode shapes are analyzed for the lower …

Identifying elastic wave polarization and bandgaps in periodic solid media

M Carrillo-Munoz, B Sharma - International Journal of Mechanical Sciences, 2023 - Elsevier
We present a new computational method to accurately identify the elastic wave propagation
modes and polarizations in periodic solid structures and metamaterials. The method uses …

A new method to identify elastic wave propagation mode and polarized bandgaps in periodic solid media

MJC Munoz, B Sharma - arXiv preprint arXiv:2301.11347, 2023 - arxiv.org
We present a new computational method for the accurate identification of the propagation
modes and polarizations of elastic waves propagating in periodic solid structures and …

One-dimensional phononic crystals

EIHEI Boudouti, B Djafari-Rouhani - Acoustic metamaterials and phononic …, 2012 - Springer
In this chapter, we discuss the vibrational properties of one-dimensional (1D) phononic
crystals of both discrete and continuous media. These properties include the dispersion …

Ultrasonic elastic modes in solid bars: An application of the plane wave expansion method

B Manzanares-Martinez, F Ramos-Mendieta… - The Journal of the …, 2010 - pubs.aip.org
Ultrasonic elastic modes in solid bars are investigated theoretically and experimentally
using the plane wave expansion method to calculate the dispersion curves k= k (ω) for …

Non-perpendicular hypersonic and optical stop-bands in porous silicon multilayers

J Manzanares-Martinez… - Applied Physics …, 2012 - pubs.aip.org
We study by theoretical simulations the non-perpendicular propagation of electromagnetic
and elastic waves in porous silicon multilayers. We proceeded in three steps. First, we found …