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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Numerical and analytical analyses for active fiber composite piezoelectric composite materials

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Author(s):
de Medeiros, Ricardo [1] ; Rodriguez-Ramos, Reinaldo [2] ; Guinovart-Diaz, Raul [2] ; Bravo-Castillero, Julian [2] ; Otero, Jose A. [3, 4] ; Tita, Volnei [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Aeronaut Engn, BR-1357312 Sao Carlos, SP - Brazil
[2] Univ Habana, Fac Matemat & Computac, Havana - Cuba
[3] Inst Cibernet Matemat & Fis ICIMAF, Dept Fis Aplicada, Havana - Cuba
[4] Inst Tecnol Estudios Super Monterrey CEM, Em 52926 - Mexico
Total Affiliations: 4
Document type: Journal article
Source: Journal of Intelligent Material Systems and Structures; v. 26, n. 1, p. 101-118, JAN 2015.
Web of Science Citations: 6
Abstract

This study consists of the calculation of the effective properties for active fiber composites made of either circular or square cross-section fibers not only by using finite element analysis and representative volume elements, but also based on the asymptotic homogenization method. Thus, there is an investigation about different approaches, which have specific mathematical formulations and unique characteristics. The comparison between numerical and analytical approaches shows that the numerical results are in good agreement with investigations performed by both analytical and semi-analytical methods, mainly the predictions for loading applied in fiber direction. For active fiber composites made of circular cross-section fibers, the maximum difference between asymptotic homogenization method and finite element analysis is from 1.29% to 5.49% for mechanical and piezoelectric effective properties, respectively, considering representative volume element in square arrangement. However, for active fiber composites made of square cross-section fibers, the maximum difference between semi-analytical method and finite element analysis is from 2.15% to 17.09% for mechanical and piezoelectric effective properties, respectively, considering representative volume element in square arrangement. (AU)

FAPESP's process: 12/01047-8 - DEVELOPMENT OF CRITERION FOR STRENGTH RESIDUAL PREDICTION OF COMPOSITE STRUCTURES DAMAGED BY IMPACT
Grantee:Ricardo de Medeiros
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/03645-0 - Computation of average properties in composites under imperfect contact conditions at the fiber-matrix interfaces
Grantee:Volnei Tita
Support Opportunities: Research Grants - Visiting Researcher Grant - International