Band structure properties of elastic waves propagating in the nanoscaled nearly periodic layered phononic crystals
Band structure properties of elastic waves propagating in the nanoscaled nearly periodic layered phononic crystals作者机构:Institute of Engineering Mechanics Beijing Jiaotong Uniuersity Beijing 100044 China
出 版 物:《Acta Mechanica Solida Sinica》 (固体力学学报(英文版))
年 卷 期:2017年第30卷第2期
页 面:113-122页
核心收录:
学科分类:07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0802[工学-机械工程] 0703[理学-化学] 0701[理学-数学] 0801[工学-力学(可授工学、理学学位)] 0702[理学-物理学]
基 金:support by the National Science Foundation under Grant no. 11272043
主 题:Elastic wave Nanoscale Nearly periodic Phononic crystal Band structure
摘 要:The localization factor is used to describe the band structures for P wave propagating normally in the nanoscaled nearly periodic layered phononic crystals. The localization factor is calculated by the transfer matrix method based on the nonlocal elastic continuum *** kinds of nearly periodic arrangements are concerned, i.e., random disorder, quasiperiodicity and defects. The influences of randomly disordered degree of the sub-layer's thickness and mass density, the arrangement of quasi-periodicity and the location of defect on the band structures and cut-off frequency are analyzed in detail.