Continuum model of acoustic metamaterials with diatomic crystal lattice

doi:10.1080/15376494.2016.1205685

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Continuum model of acoustic metamaterials with diatomic crystal lattice
	Zhou, Yahong; Wei, Peijun; Li, Yueqiu; Tang QH(汤奇恒); Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China.
刊名	MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
	2017
卷号	24 期号:13 页码:1059-1073
关键词	Metamaterial Dispersion Relations Diatomic Lattice Strain Gradient Continuum Nonlocal Gradient Continuum
ISSN号	1537-6494
DOI	10.1080/15376494.2016.1205685
文献子类	Article
英文摘要	The continuum model of one-dimensional acoustic metamaterial with diatomic crystal lattice is studied in this article. First, the dispersive relation of lattice wave in one-dimensional diatomic crystal lattice of metamaterial is established and compared with that of the classic material. Then, the continuum model of the acoustic metamaterial leads to the classical continuum model, the stain gradient continuum model, and the nonlocal gradient continuum model based on different assumptions. The dispersive curves, which correspond to the three kinds of models, are shown graphically and compared with that of discrete crystal lattice of metamaterial. The disadvantage of the classic continuum model and the strain gradient continuum model are discussed. The nonlocal gradient continuum model is derived based on the nonlocal assumption of continuous displacement field. The stability of dispersive curves is guaranteed. However, the actual prediction effects are still dependent upon the appropriate selection of the nonlocal parameter in the nonlocal gradient continuum model.
分类号	二类
URL标识	查看原文
WOS关键词	GRADIENT ELASTICITY ; MATRIX FUNCTIONS ; DYNAMICS
WOS研究方向	Materials Science ; Mechanics
语种	英语
WOS记录号	WOS:000407546300001
资助机构	National Natural Science Foundation of China(10972029) ; State Key Laboratory of Nonlinear Mechanics (LNM)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/70027]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China.
推荐引用方式 GB/T 7714	Zhou, Yahong,Wei, Peijun,Li, Yueqiu,et al. Continuum model of acoustic metamaterials with diatomic crystal lattice[J]. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES,2017,24(13):1059-1073.
APA	Zhou, Yahong,Wei, Peijun,Li, Yueqiu,汤奇恒,&Wei, PJ .(2017).Continuum model of acoustic metamaterials with diatomic crystal lattice.MECHANICS OF ADVANCED MATERIALS AND STRUCTURES,24(13),1059-1073.
MLA	Zhou, Yahong,et al."Continuum model of acoustic metamaterials with diatomic crystal lattice".MECHANICS OF ADVANCED MATERIALS AND STRUCTURES 24.13(2017):1059-1073.