Non-uniformly polarized piezoceramic materials can be used in effective energy
harvesting devices. Axisymmetric and plane models of electric elastic bodies were studied
using applied theory and finite element method (FEM). Applied theory for devices made of
parts with longitudinal and transverse polarization was developed. It was based on bending of
electric elastic plates models. Numerical experiments for FEM models were performed in
ACELAN package. Applied theory of second order vibrations was introduced.
Keywords: functionally graded material (FGM), prescribed temperature, design optimization, residual stresses minimization
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