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The work deals with the methods for solving homogenization problems for porous
piezoceramic media with open porosity, which are implemented in ACELAN-COMPOS finite
element software package developed by the authors. Determination of the effective properties of
composite media is based on the effective moduli method and the finite element method. Special
algorithm was developed to generate representative volumes for two-phase composites that
support connectivity for both phases. The work of the suggested algorithm is illustrated by an
example of porous piezoceramic PZT-4. Numerical experiments show that the representative
volume structure can have a significant effect on the effective moduli of a piezoceramic with
open porosity.
Keywords: piezoelectricity; 3-3 two-phase piezocomposite; effective moduli; representative volume; finite element method; finite element software. |
full paper (pdf, 1008 Kb)