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Verified finite element simulation of multiferroic structures: Solutions for conducting and insulating systems
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10.1063/1.2988183
/content/aip/journal/jap/104/7/10.1063/1.2988183
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/7/10.1063/1.2988183
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Composite multiferroic with electrodes (thick line) on outside showing piezoelectric “e” and magnetostrictive “m” layers; (b) with inner electrodes. This can also be achieved by having a conducting magnetostrictive.

Image of FIG. 2.
FIG. 2.

(a) Laminate bar structure. (b) Equivalent circuit when bar is regarded as a magnetic field detector. is the open-circuit voltage and the impedance of the equivalent voltage source

Image of FIG. 3.
FIG. 3.

Structured mesh (actual mesh is 3D) showing node numbering scheme and domain of shape functions and . Although distorted the topology is that of a cubic lattice.

Image of FIG. 4.
FIG. 4.

variation along piezoelectric layer, centerline (conductor).

Image of FIG. 5.
FIG. 5.

Strain along piezoelectric and magnetostrictive layers, centerline (conductor).

Image of FIG. 6.
FIG. 6.

Stress along piezoelectric and magnetostrictive layers, centerline (conductor).

Image of FIG. 7.
FIG. 7.

Variation of along piezoelectric layer, centerline (conductor). There is an difference between the analytical and FE results

Image of FIG. 8.
FIG. 8.

Variation of for various voltages as shown. ZINC FE results except where marked “analytic.”

Image of FIG. 9.
FIG. 9.

Variation of along bar, centerline (conductor).

Image of FIG. 10.
FIG. 10.

Variation of along bar, centerline (conductor).

Image of FIG. 11.
FIG. 11.

curve for conducting (left scale) and insulating multiferroic (right scale). Applied field (conductor) and (insulator). NB current is purely imaginary: shown. The current is times higher for conducting system. ZINC results.

Image of FIG. 12.
FIG. 12.

along bar layer, centerline (insulator).

Image of FIG. 13.
FIG. 13.

along bar, centerline (insulator).

Image of FIG. 14.
FIG. 14.

along bar, centerline (insulator).

Image of FIG. 15.
FIG. 15.

along and layers of bar (centerlines). Note that in the layer is much greater, and its variation along the bar is much less, than in the layer

Image of FIG. 16.
FIG. 16.

along and layers of bar (centerlines).

Image of FIG. 17.
FIG. 17.

Detailed plot of along and layers of bar (centerlines).

Image of FIG. 18.
FIG. 18.

variation along bar, centerline.

Image of FIG. 19.
FIG. 19.

variation along bar, centerline.

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/content/aip/journal/jap/104/7/10.1063/1.2988183
2008-10-02
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Verified finite element simulation of multiferroic structures: Solutions for conducting and insulating systems
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/7/10.1063/1.2988183
10.1063/1.2988183
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