Analytical Model of Magnetostrictive/Piezoelectric laminate Composites

Khalil Moussi, Slim Naifar, Sonia Bradai, Olfa Kanoun
Abstract:
In the past few decades, extensive researches have been conducted on magnetoelectric (ME) effect especially in composite materials. Based on ME effect, vibration energy is converted into electric energy. Using Terfenol-D and PZT materials magnetic field is transformed into electric power. However, magnetic, mechanical and electric effects appear when the two composites are coupled. Moreover, under dynamic conditions, additional effects alter the transducer performance. For these purposes, investigations were carried out on magnetostrictive and piezoelectric materials. This paper addresses the analytical modeling of magnetostrictive/piezoelectric laminate composites. First, the linear model and the equivalent circuits are presented for both magnetostrictive and piezoelectric layers. Second, the equivalent circuit of the ME laminate composites is obtained. Finally, we simulate the analytical model to determine the optimal thickness giving high electric power output.
Keywords:
analytical modeling, magnetostriction, piezoelectricity, linear modeling, equivalent circuit
Download:
IMEKO-TC19-2014-011.pdf
DOI:
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Event details
IMEKO TC:
TC19
Event name:
Methods and Advances in Measurement
Title:

5th Symposium on Environmental Instrumentation and Measurements

Place:
Chemnitz, GERMANY
Time:
23 September 2014 - 24 September 2014