Mahapatra, R. and Melnik, R.V.N.
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), Ed. Y. Bar-Cohen, Proceedings of SPIE, Vol. 6168, San Diego, Feb 26- March 2, 61682D-1--61682D-10 (10 pages), 2006
A mesoscopic model to analyze various effects of electroactive and flow related properties in piezoelectriccopolymer composite thin film has been developed in this paper. A three-phase composite with piezoelectric particulate phase, electroactive polymer phase and graft polymer-matrix phase is considered. The homogenized constitutive model takes into account the local transport of cations in polymer, electrostriction and anhysteretic polarization. A finite strain description is given which includes the mesoscopic dispersion of copolymer chains. Finite element simulation is carried out by considering a P(VDF-TrFE)-PZT-Araldite thin film. Analysis of the results indicate that an increasing copolymercontent substantially changes the deformation pattern in the film.
Keywords: piezoelectric; polymer; mesoscopic; finite strain; thin films; electroactive materials
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