Title :
Electro-mechanical properties of soft composite materials
Author :
Tuncer, Enis ; Wegener, Michael ; Gerhard-Multhaupt, Reimund
Author_Institution :
Appl. Condensed-Matter Phys., Univ. of Potsdam, Germany
Abstract :
Charged dielectric films with soft and rigid elastic and non-affine properties can be used as electro-mechanical and electro-acoustic transducers when at least one unclamped surface exists. Our previous results on one- and two-dimensional systems illustrate that the use of the Maxwell stress tensor generates perfect agreement with the analytical model. Here, the full set of equations for coupled electromechanical systems is presented. The finite-element method is employed to solve this set of equations. Electro-mechanical properties of some typical structures are also presented as examples.
Keywords :
composite materials; dielectric thin films; electrostriction; finite element analysis; inhomogeneous media; piezoelectricity; space charge; Maxwell stress tensor; charged dielectric films; coupled electromechanical systems; electroacoustic transducers; electromechanical sensors; electromechanical transducers; electrostrictive behavior; finite-element method; layered materials; nonaffine properties; piezoelectric behavior; rigid elastic properties; soft composite material electromechanical properties; space-charge distribution; unclamped surface; Analytical models; Capacitive sensors; Composite materials; Dielectrics; Equations; Geometry; Numerical models; Permittivity; Physics; Tensile stress;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2004. CEIDP '04. 2004 Annual Report Conference on
Print_ISBN :
0-7803-8584-5
DOI :
10.1109/CEIDP.2004.1364187
