IMECH-IR  > 非线性力学国家重点实验室
Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester
Su YW(苏业旺); Li SA; Li R; Dagdeviren C; Su, YW (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationAPPLIED PHYSICS LETTERS
2015-07-27
Volume107Issue:4Pages:41905
ISSN0003-6951
AbstractFlexible 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.
Subject AreaPhysics
DOI10.1063/1.4927677
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000358924200032
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
Funding OrganizationNational Natural Science Foundation of China [11302038] ; China Postdoctoral Science Foundation [2014T70243]
DepartmentLNM苏业旺
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/55323
Collection非线性力学国家重点实验室
Corresponding AuthorSu, YW (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
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,&Su, YW .(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.
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