TY - JOUR
T1 - Band Structure Analysis of SH Wave Propagating in Nanoscale Layered Metamaterial Structures
AU - Yan, Zhizhong
AU - Yang, Xiaotong
N1 - Publisher Copyright:
Copyright © 2022 Yan and Yang.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - This study is devoted to the analysis of the band structures of the anti-plane transverse wave (SH wave) in nanoscale layered metamaterial structures. Attention is restricted to normal incidence of waves. The localization factor is introduced to characterize the band structures. The general transfer matrix method based on the nonlocal elastic continuum theory is employed to calculate the localization factor. Based on the analysis of band structures, the influences of random disorder of the internal characteristic length and the external thickness of each sub-layer, the aperiodic arrangements, the location of different material components, the ratio of mass density, the ratio of the transverse wave velocity, the ratio of the internal characteristic length or the external thickness of each sub-layer on the band structures, the cut-off frequency, the peak points and the dense band zones are investigated and discussed in detail, which can provide some new thoughts for the designs and applications of the nanoscale wave devices.
AB - This study is devoted to the analysis of the band structures of the anti-plane transverse wave (SH wave) in nanoscale layered metamaterial structures. Attention is restricted to normal incidence of waves. The localization factor is introduced to characterize the band structures. The general transfer matrix method based on the nonlocal elastic continuum theory is employed to calculate the localization factor. Based on the analysis of band structures, the influences of random disorder of the internal characteristic length and the external thickness of each sub-layer, the aperiodic arrangements, the location of different material components, the ratio of mass density, the ratio of the transverse wave velocity, the ratio of the internal characteristic length or the external thickness of each sub-layer on the band structures, the cut-off frequency, the peak points and the dense band zones are investigated and discussed in detail, which can provide some new thoughts for the designs and applications of the nanoscale wave devices.
KW - aperiodicity
KW - band structures
KW - disorder
KW - nanoscale layered structures
KW - nonlocal elastic continuum theory
UR - http://www.scopus.com/inward/record.url?scp=85127161822&partnerID=8YFLogxK
U2 - 10.3389/fmats.2022.842073
DO - 10.3389/fmats.2022.842073
M3 - Article
AN - SCOPUS:85127161822
SN - 2296-8016
VL - 9
JO - Frontiers in Materials
JF - Frontiers in Materials
M1 - 842073
ER -