Finite element simulation of effective properties of microporous piezoceramic material with metallized pore surfaces

ABSTRACT

The paper presents a computer design of effective properties of microporous piezoceramic materials with fully metallized pore surfaces based on the simulation of the representative volume structure, the effective moduli method of the composite mechanics, and the finite element method. ANSYS finite element software was used to obtain numerical solution of the homogenization problems. To simulate the metallization on the boundaries of pores with piezoceramic matrix, the boundary conditions of free electrodes and elastic shell finite elements were used. The influence of the pore surface metallization on the values of effective moduli for microporous piezoceramics PZT-4 was investigated numerically.

KEYWORDS:

• Piezoelectric composite
• porous piezoceramics
• metallized micropore
• stochastic porosity
• effective moduli
• finite element method
• microstructure
• representative volume

Funding

This work was supported by grant 16-01-00785 of the Russian Foundation for Basic Research. The second author would like to acknowledge support from Southern Federal University for the program of international academic mobility.