Open AccessComputational Homogenization of Cement-Based Porous Piezoelectric Composites with Random Structure
Author(s) -
Pavel Novák,
Bishay Peter,
Milan Žmindák
Publication year - 2019
Publication title -
strojnícky časopis/journal of mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.276
H-Index - 8
eISSN - 2450-5471
pISSN - 0039-2472
DOI - 10.2478/scjme-2019-0018
Subject(s) - micromechanics , materials science , homogenization (climate) , composite material , representative elementary volume , volume fraction , microscale chemistry , porosity , piezoelectricity , finite element method , composite number , cement , asymptotic homogenization , microstructure , structural engineering , mathematics , biodiversity , ecology , mathematics education , engineering , biology
The finite element method (FEM) is used to characterize the effective thermo-electromechanical material properties of cement-based piezoelectric ceramic composites in this paper. The micromechanics representative volume element (RVE) approach is used with distribution of piezoelectric particles in the porous cement matrix. The effects of the piezoelectric particle volume fraction and pore volume fraction on the effective composite properties are determined using sets of different boundary conditions. Microscale homogenization is carried out through the analysis of particles which are randomly distributed in a homogenized matrix.