The directional propagation characteristics of elastic wave in two-dimensional thin plate phononic crystals

2007 ◽  
Vol 364 (3-4) ◽  
pp. 323-328 ◽  
Author(s):  
Jihong Wen ◽  
Dianlong Yu ◽  
Gang Wang ◽  
Honggang Zhao ◽  
Yaozong Liu ◽  
...  
Keyword(s):  
Elastic Wave ◽  
Thin Plate ◽  
Phononic Crystals ◽  
Two Dimensional ◽  
Propagation Characteristics

Directional Propagation Characteristics of Flexural Waves in Two-Dimensional Thin-Plate Phononic Crystals

2007 ◽  
Vol 24 (5) ◽  
pp. 1305-1308 ◽  
Author(s):  
Wen Ji-Hong ◽  
Yu Dian-Long ◽  
Wang Gang ◽  
Zhao Hong-Gang ◽  
Liu Yao-Zong ◽  
...  
Keyword(s):  
Thin Plate ◽  
Phononic Crystals ◽  
Two Dimensional ◽  
Propagation Characteristics ◽  
Flexural Waves

Elastic wave band gaps tuned by configuring radii of rods in two-dimensional phononic crystals with a hybrid square-like lattice

2015 ◽  
Vol 29 (35n36) ◽  
pp. 1550242
Author(s):  
Rongqiang Liu ◽  
Haojiang Zhao ◽  
Yingying Zhang ◽  
Honghwei Guo ◽  
Zongquan Deng
Keyword(s):  
Plane Wave ◽  
Elastic Wave ◽  
Phononic Crystals ◽  
Numerical Results ◽  
Band Gaps ◽  
Square Lattice ◽  
Wave Band ◽  
Two Dimensional ◽  
Plane Wave Expansion ◽  
Band Structures

The plane wave expansion (PWE) method is used to calculate the band gaps of two-dimensional (2D) phononic crystals (PCs) with a hybrid square-like (HSL) lattice. Band structures of both XY-mode and Z-mode are calculated. Numerical results show that the band gaps between any two bands could be maximized by altering the radius ratio of the inclusions at different positions. By comparing with square lattice and bathroom lattice, the HSL lattice is more efficient in creating larger gaps.

FINITE ELEMENT ANALYSIS OF THE INTERFACE/SURFACE EFFECT ON THE ELASTIC WAVE BAND STRUCTURE OF TWO-DIMENSIONAL NANOSIZED PHONONIC CRYSTALS

2014 ◽  
Vol 06 (01) ◽  
pp. 1450005 ◽  
Author(s):  
WEI LIU ◽  
YONGQUAN LIU ◽  
XIANYUE SU ◽  
ZHENG LI
Keyword(s):  
Finite Element ◽  
Band Structure ◽  
Elastic Wave ◽  
Surface Effect ◽  
Surface Elasticity ◽  
Phononic Crystals ◽  
Surface Element ◽  
Wave Band ◽  
Two Dimensional ◽  
Interface Surface

In this paper, an interface/surface element is formulated based on the Gurtin–Murdoch interface/surface elasticity theory for accounting the interface/surface effect on the elastic wave propagation in two-dimensional nanosized phononic crystals. The interface/surface element is subsequently incorporated into the finite element procedure for calculating the elastic wave band structure of two-dimensional nanosized phononic crystals with consideration of the interface/surface effect. Elastic wave band structures of two-dimensional phononic crystals comprising a square array of circular or elliptical cylindrical nanoholes embedded in an aluminum matrix are analyzed. Numerical results evidence that the interface/surface effect on the elastic wave band structure can be remarkable when the characteristic size reduces to nanometers.

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