Multi-parameter magnetoelectric response modeling of magnetostrictive/piezoelectric laminate composites considering shear strain

A low-frequency magnetoelectric (ME) response model of magnetostrictive/piezoelectric laminate composites based on multi-parameter analysis is presented. This model, taken the shear effect as the basis, analyzes the stress and strain of the magnetostrictive and piezoelectric layers by the stress fun...

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Bibliographic Details
Published in:Journal of applied physics 2014-01, Vol.115 (1)
Main Authors: Dai, Xianzhi, Zhang, Zhang, Wang, Yong, Li, Jianzhong, Chen, Lei
Format: Article
Language:English
Subjects:
Applied physics
Composite materials
Coupling coefficients
Hamilton's principle
Interlayers
Laminates
Magnetic permeability
Magnetostriction
Mathematical models
Parameters
Piezoelectricity
Poisson's ratio
Shear strain
Shear stress
Stress functions
Thickness ratio
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Summary:A low-frequency magnetoelectric (ME) response model of magnetostrictive/piezoelectric laminate composites based on multi-parameter analysis is presented. This model, taken the shear effect as the basis, analyzes the stress and strain of the magnetostrictive and piezoelectric layers by the stress function. The interlayer shear stress and the low-frequency ME response characteristics of ME laminate composites are obtained by using Hamilton principle of minimum energy and in consideration of the influence of stored magnetic field energy of magnetostrictive layer. The theoretical results show that the ME voltage coefficient is related with the magnetic permeability, Poisson ratio, magnetomechanical coupling coefficient, thickness ratio of magnetostrictive material and the Poisson ratio and electromechanical coupling coefficient of piezoelectric material. The influence of these parameters is analyzed. The experimental results show that analytical results are also compared to experimental test data with excellent correlation and their errors are less than 6%.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4860992