Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9795551 | Materials Science and Engineering: A | 2005 | 8 Pages |
Abstract
This work deals with the modelling of periodic composites made of piezoceramic (lead zirconate-titanat) fibres embedded in a soft non-piezoelectric matrix (polymer). The goal is to predict the effective coefficients of such periodic transversely isotropic piezoelectric fibre composites by use of a representative volume element or unit cell. The solution is based on a numerical approach using finite element method (FEM). The necessary basic equations for the piezoelectric material are introduced and the special concept for definition of generalised periodic boundary conditions for the unit cell is explained. For a composite with square arrangements of cylindrical fibres the algorithm is demonstrated and the extension to other fibre arrangements is shown. For different fibre volume fractions the results are compared with analytical solutions.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Harald Berger, Sreedhar Kari, Ulrich Gabbert, Reinaldo RodrÃguez-Ramos, Julián Bravo-Castillero, Raúl Guinovart-DÃaz,