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Thermophysics and Aeromechanics

2011 year, number 1

Modelling of thermal conductivity in hybrid composites made from binding matrix, with orthogonal reinforcement with tubes and with disperse-hardened hollow inclusions

A.P. Yankovsky
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Keywords: thermal conductivity, composites, hollow fibers, disperse inclusions, generalization of Fourier's law, Stephan ? Boltzmann law
Pages: 135-150


The models were developed for thermal conductivity of a binding medium reinforced with tubes and with disperse-hardened hollow inclusions; the models have versions with/without consideration of relaxation times of materials making the phases of composition. For a limiting case, when tubes degenerate into solid fibers, we compared calculated values for efficient thermal conductivity coefficients for the case of single-direction and crisscross reinforced composites with corresponding experimental values. A satisfactory agreement between theory and experiment takes place.