NDLI: Electric fields in ferroelectric polymer metal structures; modeling using a finite element boundary element method

Content Provider	IEEE Xplore Digital Library
Author	Driga, M.D. Wu, A.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA (Driga, M.D.)
Abstract	Significant advances in ferroelectric polymers used in electromechanical-active transduction-sensor applications, as well as strong interest in special capacitive structures involving ferroelectric metal complex structures, have occurred very recently. The applications, initially oriented toward military use, such as surveillance systems for underwater detection and large area hydrophone arrays, have spread to high-voltage engineering, transducers for robotics, advanced nonlinear capacitors, and other civilian applications. In order to reach the optimum of such devices, higher electric fields must be employed, leading to the need for a very accurate modeling, not only of the steady state distribution of the electric fields, but, much more importantly, the transient behavior of such fields in the presence of the highly nonlinear, ferroelectric, polymer media. A finite element method (FEM) using Galerkin's method, coupled with a boundary element method (BEM) numerical code, are described in this paper as a device for a precise modeling in space and time. The formulation presented for nonlinear, nonhomogeneous media can be extended readily to accommodate material anisotropy by specifying /spl par//spl epsi//spl par/ as a tensor. Several practical examples and applications are presented.
Starting Page	375
Ending Page	380
File Size	500473
Page Count	6
File Format	PDF
ISBN	0780342372
DOI	10.1109/ICSD.1998.709304
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-22
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ferroelectric materials Polymers Surveillance Underwater tracking Sonar equipment Transducers Robots Capacitors Steady-state Finite element methods
Content Type	Text
Resource Type	Article

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