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Journal of Enhanced Heat Transfer

Publication de 8  numéros par an

ISSN Imprimer: 1065-5131

ISSN En ligne: 1563-5074

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Indexed in

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

Volume 13, Numéro 1, 2006, pp. 17-38
DOI: 10.1615/JEnhHeatTransf.v13.i1.20
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RÉSUMÉ

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.

CITÉ PAR
  1. Matt Carlos F., Cruz Manuel E., Effective Thermal Conductivity of Composite Materials with 3-D Microstructures and Interfacial Thermal Resistance, Numerical Heat Transfer, Part A: Applications, 53, 6, 2007. Crossref

  2. Fang Wen-Zhen, Chen Li, Gou Jian-Jun, Tao Wen-Quan, Predictions of effective thermal conductivities for three-dimensional four-directional braided composites using the lattice Boltzmann method, International Journal of Heat and Mass Transfer, 92, 2016. Crossref

  3. López-Ruiz G., Bravo-Castillero J., Brenner R., Cruz M. E., Guinovart-Díaz R., Pérez-Fernández L. D., Rodríguez-Ramos R., Improved variational bounds for conductive periodic composites with 3D microstructures and nonuniform thermal resistance, Zeitschrift für angewandte Mathematik und Physik, 66, 5, 2015. Crossref

  4. López-Ruiz G., Bravo-Castillero J., Brenner R., Cruz M.E., Guinovart-Díaz R., Pérez-Fernández L.D., Rodríguez-Ramos R., Variational bounds in composites with nonuniform interfacial thermal resistance, Applied Mathematical Modelling, 39, 23-24, 2015. Crossref

  5. Vieira Camila de Sousa, Marques Severino Pereira Cavalcanti, A new three-dimensional finite-volume model for evaluation of thermal conductivity of periodic multiphase composites, International Journal of Heat and Mass Transfer, 139, 2019. Crossref

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