scholarly journals Mechanically tunable phononic band gaps in three-dimensional periodic elastomeric structures

2012 ◽  
Vol 49 (19-20) ◽  
pp. 2881-2885 ◽  
Author(s):  
Lifeng Wang ◽  
Katia Bertoldi
Keyword(s):  
Three Dimensional ◽  
Band Gaps ◽  
Phononic Band Gaps

Inertial Amplification Induced Phononic Band Gaps in SC and BCC Lattices

2013 ◽  
Author(s):  
Semih Taniker ◽  
Cetin Yilmaz
Keyword(s):  
Band Structure ◽  
Three Dimensional ◽  
Dispersion Curves ◽  
Band Gaps ◽  
Body Centered Cubic ◽  
Simple Cubic ◽  
Phononic Band Gaps ◽  
Lower Frequencies

This paper investigates effects of inertial amplification mechanisms on the phononic band structure of infinitely periodic simple cubic (SC) and body centered cubic (BCC) lattices. First, these three-dimensional lattices are formed using mass and spring elements. Then, dispersion curves of these lattices are obtained. Consequently, inertial amplification mechanisms are embedded around each spring in these lattices and their dispersion curves are calculated again. When compared to the cases in which inertial amplification was not used, phononic band gaps are obtained at much lower frequencies.

Band Gaps in Three-Dimensional Layer-by-Layer Phononic Crystal

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
N. Aravantinos-Zafiris ◽  
M. M. Sigalas
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Periodic Boundary ◽  
Phononic Crystal ◽  
Three Dimensional ◽  
Periodic Boundary Conditions ◽  
Band Gaps ◽  
Layer By Layer ◽  
Phononic Band Gaps ◽  
Difference Time

In this work, we numerically investigate the existence of phononic band gaps in the layer-by-layer rods structure. For the numerical calculations the finite difference time domain method was used and the transmission, as well as the band structure (using periodic boundary conditions and the Bloch theorem), was calculated. Several different materials (considered as the rods materials) were examined and the effects of all the geometric parameters of the structure were also numerically investigated. The results show that this structure seems to have very promising features as a phononic crystal giving, under certain conditions, a full 3D band gap. Taking into account that it is already known for its use as a photonic crystal, a certain belief for its use simultaneously as a photonic and phononic crystal rises.

The two-dimensional phononic band gaps tuned by the position of the additional rod

2007 ◽  
Vol 362 (5-6) ◽  
pp. 494-499 ◽  
Author(s):  
Yuanwei Yao ◽  
Zhilin Hou ◽  
Youyan Liu
Keyword(s):  
Band Gaps ◽  
Two Dimensional ◽  
Phononic Band Gaps

Tuning method of phononic band gaps of locally resonant pentamode metamaterials

2018 ◽  
Vol 52 (4) ◽  
pp. 045601 ◽  
Author(s):  
Chengxin Cai ◽  
Chao Han ◽  
Jianfeng Wu ◽  
Zhaohong Wang ◽  
Qinghui Zhang
Keyword(s):  
Band Gaps ◽  
Tuning Method ◽  
Phononic Band Gaps
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