Elastic wave band gaps in 2D fractal phononic crystals

2021 ◽  
Author(s):  
Victor Gustavo Ramos Costa Dos Santos ◽  
Edson Jansen Pedrosa de Miranda Junior ◽  
Jose Maria Campos dos Santos
Keyword(s):  
Elastic Wave ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band

Elastic wave band gaps for three-dimensional phononic crystals with two structural units

2003 ◽  
Vol 313 (5-6) ◽  
pp. 455-460 ◽  
Author(s):  
Xin Zhang ◽  
Zhengyou Liu ◽  
Youyan Liu ◽  
Fugen Wu
Keyword(s):  
Elastic Wave ◽  
Three Dimensional ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band ◽  
Structural Units

Stable elastic wave band-gaps of phononic crystals with hyperelastic transformation materials

2017 ◽  
Vol 11 ◽  
pp. 37-41 ◽  
Author(s):  
Yan Liu ◽  
Zheng Chang ◽  
Xi-Qiao Feng
Keyword(s):  
Elastic Wave ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band

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.

Research on the elastic wave band gaps of curved beam of phononic crystals

2015 ◽  
Vol 457 ◽  
pp. 82-91 ◽  
Author(s):  
Liu Shaogang ◽  
Li Shidan ◽  
Shu Haisheng ◽  
Wang Weiyuan ◽  
Shi Dongyan ◽  
...  
Keyword(s):  
Elastic Wave ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Curved Beam ◽  
Wave Band

Elastic wave band gaps in magnetoelectroelastic phononic crystals

Wave Motion ◽  
2009 ◽  
Vol 46 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Yi-Ze Wang ◽  
Feng-Ming Li ◽  
Kikuo Kishimoto ◽  
Yue-Sheng Wang ◽  
Wen-Hu Huang
Keyword(s):  
Elastic Wave ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band

scholarly journals Wave band gaps in two-dimensional piezoelectric/piezomagnetic phononic crystals

2008 ◽  
Vol 45 (14-15) ◽  
pp. 4203-4210 ◽  
Author(s):  
Yi-Ze Wang ◽  
Feng-Ming Li ◽  
Wen-Hu Huang ◽  
Xiaoai Jiang ◽  
Yue-Sheng Wang ◽  
...  
Keyword(s):  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band ◽  
Two Dimensional

Surface Acoustic Wave Band Gaps and Phononic Structures on Thin Solid Plates

2005 ◽  
Author(s):  
Xinya Zhang ◽  
Ted Jackson ◽  
Emmanuel Lafound ◽  
Pierre Deymier ◽  
Jerome Vasseur
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Phononic Crystal ◽  
Surface Acoustic Waves ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Laser Ultrasonics ◽  
Thin Plates ◽  
Wave Band

Novel phononic crystal structures on thin plates for material science applications in ultrasonic range (~ MHz) are described. Phononic crystals are created by a periodic arrangement of two or more materials displaying a strong contrast in their elastic properties and density. Because of the artificial periodic elastic structures of phononic crystals, there can exist frequency ranges in which waves cannot propagate, giving rise to phononic band gaps which are analogous to photonic band gaps for electromagnetic waves in the well-documented photonic crystals. In the past decades, the phononic structures and acoustic band gaps based on bulk materials have been researched in length. However few investigations have been performed on phononic structures on thin plates to form surface acoustic wave band gaps. In this presentation, we report a new approach: patterning two dimensional membranes to form phononic crystals, searching for specific acoustic transport properties and surface acoustic waves band gaps through a series of deliberate designs and experimental characterizations. The proposed phononic crystals are numerically simulated through a three-dimensional plane wave expansion (PWE) method and experimentally characterized by a laser ultrasonics instrument that has been developed in our laboratory.

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