Multiple scattering of thermal waves and non-steady effective thermal conductivity of composites with dense coated fibers

摘要: In this study, the multiple scattering of thermal waves by dense coated fibers in composites is considered, and analytical solution non-steady effective conductivity presented. The Fourier heat conduction law applied to analyze propagation fibrous composite. scattered refracted fields different material zones are expressed using wave functions expanded method. addition theorem for Bessel used accomplish translation between coordinate systems. theory quasicrystalline approximation conditional probability density function employed treat from matrix. propagating number obtained. As an example, effects properties coating on graphically illustrated analyzed. Analysis shows that under higher frequencies quite steady conductivity. With increase volume fraction fibers, effect thickness increases greatly. region frequency, show great difference. Comparisons with obtained other methods also