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The paper presents the methods for solving the homogenization problems for twophase
piezoelectric composites, which are implemented in ACELAN-COMPOS finite element
package, developed by the authors. The considered composites consist of piezoelectric skeleton
and elastic inclusions. The effective moduli method is used to determine the effective properties
of the composite. In this method, the static electroelasticity problems with special boundary
conditions are set for a representative volume of the composite. These problems are solved
numerically using the finite element method. The developed algorithm for generating
representative volumes for the composites with granular inclusions is described in details. The
work of the algorithm is illustrated by an example of a composite made of PZT-4 piezoceramic
with inclusions of α-corundum.
Keywords: piezoelectricity; two-phase piezocomposite; effective moduli; representative volume; finite element method; finite element software. |
full paper (pdf, 906 Kb)