Analytic model of elastic metamaterials with local resonances

X Zhou, G Hu - Physical Review B—Condensed Matter and Materials …, 2009 - APS
A unified analytic model for effective mass density, effective bulk modulus, and effective
shear modulus is presented for elastic metamaterials composed of coated spheres …

Waveguiding and frequency selection of Lamb waves in a plate with a periodic stubbed surface

TC Wu, TT Wu, JC Hsu - Physical Review B—Condensed Matter and Materials …, 2009 - APS
In this paper, we numerically and experimentally study the waveguiding of Lamb modes in a
thin plate with a periodic stubbed surface and propose a frequency-selection method based …

Locally resonant phononic woodpile: A wide band anomalous underwater acoustic absorbing material

H Jiang, Y Wang, M Zhang, Y Hu, D Lan… - Applied Physics …, 2009 - pubs.aip.org
To meet the demand of modern acoustic absorbing material for which acoustic absorbing
frequency region can be readily tailored, we introduced woodpile structure into locally …

Analysis of flexural vibration band gaps in periodic beams using differential quadrature method

HJ Xiang, ZF Shi - Computers & structures, 2009 - Elsevier
To determine the flexural vibration band gaps in periodic beams, the theoretical equations
are derived by employing the Bloch–Floquet theorem and then solved by the use of the …

Acoustic directional radiation operating at the pass band frequency in two-dimensional phononic crystals

J Wen, D Yu, L Cai, X Wen - Journal of Physics D: Applied …, 2009 - iopscience.iop.org
The phase constant surfaces of two-dimensional phononic crystals consisting of steel
cylinders in water are calculated to predict the directivity of acoustic wave propagation. A …

Low frequency elastic wave propagation in two dimensional locally resonant phononic crystal with asymmetric resonator

Y Gu, X Luo, H Ma - Journal of Applied Physics, 2009 - pubs.aip.org
The resonance modes and the related effects to the transmission of elastic waves in a two
dimensional phononic crystal formed by periodic arrangements of a two block unit cell in …

A wide band strong acoustic absorption in a locally network anechoic coating

J Heng, Z Mi-Lin, W Yu-Ren, H Yan-Ping… - Chinese Physics …, 2009 - iopscience.iop.org
Composite materials with interpenetrating network structures usually exhibit unexpected
merit due to the cooperative interaction. Locally resonant phononic crystals (LRPC) exhibit …

Wave localization in two-dimensional periodic systems with randomly disordered size

YZ Wang, FM Li, K Kishimoto, YS Wang… - The European Physical …, 2009 - Springer
The expression of the localization factor in the two-dimensional periodic systems is derived
based on the plane-wave expansion, transfer matrix and matrix eigenvalue methods. A …

局部共振模態於聲子晶體平板內之波傳行為研究

CY Sun - 臺灣大學應用力學研究所學位論文, 2009 - airitilibrary.com
In this thesis, we demonstrate the existence of complete band gaps and the propagation of
locally resonant modes in a phononic plate with periodic membranes both numerically and …

3P1-14 Plate Waves in Locally Resonant Sonic Materials

JC Hsu, TT Wu - Proceedings of Symposium on Ultrasonic …, 2009 - jstage.jst.go.jp
1. Introduction In the pastdecade, exceptional propertiesof elastic wave propagationwere
foundto exist in the man-madc periodicheterogencousstructures due to the characteristics of …