Computational characterization of ferroelectric solids with a 3D Preisach model based on an orientation distribution function |
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Authors: | Matthias Labusch Jörg Schröder |
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Institution: | Department of Civil Engineering, Faculty of Engineering, Institute of Mechanics, University of Duisburg-Essen, Universitätsstraße 15, 45141 Essen, Germany |
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Abstract: | Ferroelectric or ferromagnetic materials show an interaction between mechanical deformations and polarization or magnetization. A few multiferroic materials possess both ferroic properties and exhibit a magneto-electric (ME) coupling. These ME properties can be achieved in two-phase composites, which combine ferroelectric and ferromagnetic characteristics. To predict a realistic material behavior and a more precise ME coefficient, the application of suitable material models which describe the nonlinear hysteretic behavior is of particular importance. In the present contribution we focus on the characterization of a nonlinear ferroelectric material behavior, in terms of a 3D Preisach model based on an orientation distribution function. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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