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Micromechanically motivated finite element model for ferroelectric ceramics |
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| Authors: | Jayabal K A Menzel A Arockiarajan Srinivasan MS |
| Institution: | 1. Institute of Mechanics, Department of Mechanical Engineering, Dortmund University of Technology, Germany;2. Institute of Mechanics, Department of Mechanical Engineering, Dortmund University of Technology, Germany
Division of Solid Mechanics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden;3. Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, India |
| Abstract: | Ferroelectric ceramics exhibit significant coupled electromechanical phenomena that have been widely employed in sensor and actuator applications. In regular finite element models dealing with electromechanical plane problems, each grain needs to be subdiscretized by many triangular or quadrilateral elements for required accuracy. This problem can be overcome by a polygonal finite element approach where each grain is modelled by a single finite element without compromising on the results. In this paper, a polygonal finite element approach has been employed to understand the anisotropic response of the ferroelectric ceramics in their piezoelectric region. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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