A mechanical-magneto-thermal model for the tunability of band gaps of epoxy/Terfenol-D phononic crystals

doi:10.1063/1.4926483

	A mechanical-magneto-thermal model for the tunability of band gaps of epoxy/Terfenol-D phononic crystals
	Zhang, SZ; Shi, Y; Gao, YW; Gao, YW (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou 730000, Gansu, Peoples R China.
刊名	JOURNAL OF APPLIED PHYSICS
	2015-07-21
卷号	118 期号:3
ISSN号	0021-8979
DOI	10.1063/1.4926483
文献子类	Article
英文摘要	A way based on the temperature effect is investigated to adjust the longitudinal wave band gaps of one-dimensional epoxy/Terfenol-D phononic crystals. For both the cases (with and without consideration of demagnetization effect), the dependences of component materials' effective parameters on temperature are obtained by applying a nonlinear mechanical-magneto-thermal coupling constitutive model and fitting the experimental data, respectively. Further, the influence of temperature on the band structure of wave propagation in phononic crystals consisting of epoxy and Terfenol-D is discussed in detail. Meanwhile, the effects of magnetic field, pre-stress, and filling fraction are studied. Numerical results show that temperature has a significant influence on the band structure of wave propagation in phononic crystals: As temperature rises from -40 degrees C to 40 degrees C, the widths of the first, second, and fourth band gaps increase, while that of the third band gap decreases. In addition, the demagnetization effect should not be ignored under a low magnetic field. (C) 2015 AIP Publishing LLC.
学科主题	Physics
出版地	MELVILLE
资助项目	国家自然科学基金项目 ; 高等学校博士学科点专项科研基金
项目编号	National Natural Science Foundation of China [11072093, 11372120, 11421062] ; Ph.D. Program Foundation of the Ministry of Education of China [20110211110023]
语种	英语
WOS记录号	WOS:000358429200012
资助机构	NSFC ; MOE
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182442]
专题	土木工程与力学学院_期刊论文
通讯作者	Gao, YW (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, SZ,Shi, Y,Gao, YW,et al. A mechanical-magneto-thermal model for the tunability of band gaps of epoxy/Terfenol-D phononic crystals[J]. JOURNAL OF APPLIED PHYSICS,2015,118(3).
APA	Zhang, SZ,Shi, Y,Gao, YW,&Gao, YW .(2015).A mechanical-magneto-thermal model for the tunability of band gaps of epoxy/Terfenol-D phononic crystals.JOURNAL OF APPLIED PHYSICS,118(3).
MLA	Zhang, SZ,et al."A mechanical-magneto-thermal model for the tunability of band gaps of epoxy/Terfenol-D phononic crystals".JOURNAL OF APPLIED PHYSICS 118.3(2015).