Electromagneto-mechanical fields of giant magnetostrictive/piezoelectric laminates
Electromagneto-mechanical fields of giant magnetostrictive/piezoelectric laminates
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DOI：
10.1007/s00707-009-0259-z
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发表时间：
2010-07
期刊：
影响因子：
2.7
通讯作者：
Y. Shindo;K. Mori;F. Narita
中科院分区：
文献类型：
--
作者：
Y. Shindo;K. Mori;F. Narita
本文对磁致伸缩/压电层合板在磁场作用下的非线性机电行为进行了数值模拟和实验研究。用Tb0.3Dy0.7Fe2（Terfenol-D）和Pb（Zr，Ti）O3（PZT）薄膜制备了磁致伸缩薄膜。采用非线性有限元法分析了Terfenol-D层与PZT层的二阶磁弹性常数，讨论了磁致伸缩/压电层合板在磁场作用下的非线性位移、内应力和感应电压。
This paper presents the nonlinear electromagneto-mechanical behavior of magnetostrictive/piezoelectric laminated pieces under magnetic fields both numerically and experimentally. The pieces are fabricated using thin Tb0.3Dy0.7Fe2(Terfenol-D) and Pb(Zr,Ti)O3(PZT) layers, and the magnetostriction of the pieces is measured. A nonlinear finite element analysis is also employed to evaluate the second-order magnetoelastic constants in Terfenol-D layer bonded to the PZT layer, and the nonlinear displacement, internal stresses and induced voltage for the magnetostrictive/piezoelectric laminated pieces under magnetic fields are discussed.