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Journal of Enhanced Heat Transfer
Factor de Impacto: 1.406 Factor de Impacto de 5 años: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Imprimir: 1065-5131
ISSN En Línea: 1563-5074

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v13.i1.20
pages 17-38

Enhancement of the Thermal Conductivity of Composites Reinforced with Anisotropic Short Fibers

Carlos Frederico Matt
Department of Mechanical Engineering - EE/COPPE Federal University of Rio de Janeiro (UFRJ) CP 68503, Rio de Janeiro, RJ, 21945-970, Brazil
Manuel Ernani C. Cruz
Departamento de Engenharia Mecânica, Politécnica/COPPE, Universidade Federal de Rio de Janeiro, CP 68503 Cidade Universitária, Rio do Janeiro-RJ, 21941-972, Brazil

Scientific Journal Referee
2008 - 2008 Journal: Energy & Fuels
2007 - 2007 Journal: Brazilian Journal of Chemical Engineering
2006 - 2006 Journal: Journal of Mathematical Sciences
2006 - 2006 Journal: International Journal of Solids and Structures
2005 - 2005 Journal: Science & Engineering
2003 - 2003 Journal: Heat Transfer Engineering
2000 - 2004 Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering
2001 - 2005 Journal: Applied and Computational Mathematics
2002 - 2007 Journal: International Journal of Thermal Sciences
1999 - 2002 Journal: Proceedings of the Royal Society of London. Mathematical, Physical and Engi
2002 - 2002 Journal: Communications in Numerical Methods in Engineering
2001 - 2001 Journal: Inverse Problems in Engineering
1999 - 2000 Journal: Hybrid Methods in Engineering

SINOPSIS

Despite the importance of short-fiber composites in current engineering applications, few numerical studies have focused on their macroscopic heat conduction behavior. In this paper, we apply a finite-element-based methodology to calculate representative results for the effective thermal conductivities of composites reinforced with anisotropic short fibers. The investigated three-dimensional microstructures are ordered and consist of circular cylinders placed at the center of parallelepipedonal cells. The controlled parameters are fiber volume fraction, fiber and cell aspect ratios, and fiber thermal conductivity and degree of anisotropy. We identify the conditions under which the composite conduction capacity is significantly enhanced. Our numerical calculations are further contrasted to reported analytical and experimental results.


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