Overall properties of piezocomposite materials 1–3

The purpose of this paper is to present analytical expressions of the effective constants of reinforced piezoelectric composite materials with periodically distributed unidirectional cylindrical fibers for transducer applications. Each periodic cell of the medium is a binary piezoelectric composite...

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Bibliographic Details
Published in:Materials letters 2001, Vol.48 (2), p.93-98
Main Authors: Guinovart-Dı́az, R., Bravo-Castillero, J., Rodrı́guez-Ramos, R., Sabina, F.J., Martı́nez-Rosado, R.
Format: Article
Language:English
Subjects:
Asymptotic homogenization
Biomedical applications
Cross-disciplinary physics: materials science
rheology
Dispersion-, fiber-, and platelet-reinforced metal-based composites
Effective properties
Exact sciences and technology
Materials science
Other materials
Physics
Piezocomposite
Specific materials
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Summary:The purpose of this paper is to present analytical expressions of the effective constants of reinforced piezoelectric composite materials with periodically distributed unidirectional cylindrical fibers for transducer applications. Each periodic cell of the medium is a binary piezoelectric composite wherein both constituents are homogeneous piezoelectric materials with hexagonal symmetry. The general formulae obtained allow the prediction of global properties of an important class of piezocomposites. Numerical calculations show an adequate concordance with other theoretical models. In the analysis, the periodicity of the structure is assumed to be much smaller than the elastic wavelength. Finally, we apply these results to a 1–3 material and obtain new piezocomposites with better global properties for biomedical imaging and hydrophone applications.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(00)00285-8