Piezoelectric Composites
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Desenvolvimento de uma metodologia computacional para determinar coeficientes efetivos de compósitos inteligentes / Development of a computational methodology for determining effective coefficients of the smart composites
O presente trabalho visa empregar uma metodologia numérica para determinar as propriedades macro mecânica de compósitos ativos (AFC - Active Fiber Composite ou MFC - Macro Fiber Composite), combinando o conceito de Volume Elementar Representativo (VER) com o Método dos Elementos Finitos (MEF). Inicialmente, apresenta-se a fundamentação teórica associa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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2. Micromechanical modeling and effective properties of the smart grid-reinforced composites
Smart composite structures reinforced with a periodic grid of generally orthotropic cylindrical reinforcements that also exhibit piezoelectric behavior are analyzed using the asymptotic homogenization method. The analytical expressions for the effective elastic and piezoelectric coefficients are derived. In particular, the smart orthotropic composite structu
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
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3. Parametric analysis of effective material properties of thickness-shear piezoelectric macro-fibre composites
A previous study on the characterization of effective material properties of a d15 thickness-shear piezoelectric Macro-Fibre Composite (MFC) made of seven layers (Kapton, Acrylic, Electrode, Piezoceramic Fibre and Epoxy Composite, Electrode, Acrylic, Kapton) using a finite element homogenization method has shown that the packaging reduces significantly the s
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
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4. Electroactive properties of flexible piezoelectric composites
A flexible piezoelectric composite with 0-3 connectivity, made from Lead Zirconate Titanate (PZT) powder and vegetable-based polyurethane (PU), was doped with small amount of semiconductor powder. As a result a composite with 0-0-3 connectivity was obtained. The nature of absorption and steady state electrical conduction and the dielectric behaviour have bee
Materials Research. Publicado em: 2001-07