Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester

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	Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester
	Su YW(苏业旺); Li SA; Li R; Dagdeviren C
刊名	APPLIED PHYSICS LETTERS
	2015-07-27
通讯作者邮箱	yewangsu@imech.ac.cn ; canand@mit.edu
卷号	107 期号:4 页码:41905
ISSN号	0003-6951
通讯作者	Su, YW (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Su, Yewang; Li, Shuang] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China; [Su, Yewang] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA; [Li, Rui] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dept Engn Mech, Dalian 116024, Peoples R China; [Dagdeviren, Canan] MIT, David H Koch Inst Integrat Canc Res, Cambridge, MA 02139 USA; [Dagdeviren, Canan] Univ Illinois, Dept Mat Sci & Engn, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA; [Dagdeviren, Canan] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA
中文摘要	Flexible piezoelectric mechanical energy harvesters (MEHs) are of recent interest as an important emerging variant of traditional piezoelectric devices. The design of stacking multilayer MEHs with adhesive in between is an effective way to enhance the magnitude of power generation. Here, we present an analytic model to study the mechanical behavior of the multilayer MEHs based on lead zirconate titanate (PZT) subjected to Euler buckling. Being different from the hypothesis of the plane section for the entire stack, it is found that each polyimide (PI) layer holds plane section of its own, while soft adhesives serve as shear lags. Accordingly, the neutral mechanical plane is split into multiple ones. The deformation is almost the same for each PI layer, as well as PZT arrays, which is very beneficial to avoid the premature failure of devices. The extreme cases and the transition of these cases are all captured quantitatively with a unified analytic model which is verified by the finite element method. A dimensionless parameter is obtained to characterize the degree of the splitting of neutral mechanical plane, which is significant for the design of the multilayer PZT MEHs. (C) 2015 AIP Publishing LLC.
学科主题	Physics
分类号	一类
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1063/1.4927677
语种	英语
WOS记录号	WOS:000358924200032
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/55323]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Su YW,Li SA,Li R,et al. Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester[J]. APPLIED PHYSICS LETTERS,2015,107(4):41905.
APA	Su YW,Li SA,Li R,&Dagdeviren C.(2015).Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester.APPLIED PHYSICS LETTERS,107(4),41905.
MLA	Su YW,et al."Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester".APPLIED PHYSICS LETTERS 107.4(2015):41905.