Complex band structures of two dimensional phononic crystals: Analysis by the finite element method

2013 ◽  
Vol 114 (8) ◽  
pp. 083519 ◽  
Author(s):  
Istvan A. Veres ◽  
Thomas Berer ◽  
Osamu Matsuda
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Phononic Crystals ◽  
Two Dimensional ◽  
The Finite Element Method ◽  
Band Structures ◽  
Element Method

TUNABLE BAND STRUCTURES OF 2D MULTI-ATOM ARCHIMEDEAN-LIKE PHONONIC CRYSTALS

2012 ◽  
Vol 01 (02) ◽  
pp. 1250016 ◽  
Author(s):  
Y. L. XU ◽  
C. Q. CHEN ◽  
X. G. TIAN
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Phononic Crystal ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Two Dimensional ◽  
Primitive Cell ◽  
The Finite Element Method ◽  
Band Structures ◽  
Solid System

Two dimensional multi-atom Archimedean-like phononic crystals (MAPCs) can be obtained by adding "atoms" at suitable positions in primitive cells of traditional simple lattices. Band structures of solid-solid and solid-air MAPCs are computed by the finite element method in conjunction with the Bloch theory. For the solid-solid system, our results show that the MAPCs can be suitably designed to split and shift band gaps of the corresponding traditional simple phononic crystal (i.e., with only one scatterer inside a primitive cell). For the solid-air system, the MAPCs have more and wider band gaps than the corresponding traditional simple phononic crystal. Numerical calculations for both solid-solid and solid-air MAPCs show that the band gap of traditional simple phononic crystal can be tuned by appropriately adding "atoms" into its primitive cell.

scholarly journals Accelerated Approach for the Band Structures Calculation of Phononic Crystals by Finite Element Method

Crystals ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 11 ◽  
Author(s):  
Lin Han ◽  
Yan Zhang ◽  
Xiao-mei Li ◽  
Lin-hua Jiang ◽  
Da Chen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Phononic Crystals ◽  
Band Structures ◽  
Element Method
Sign in / Sign up

Export Citation Format

Share Document