On the effective thermal conductivity of coated short-fiber composites
- 1 February 1991
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 69 (3), 1337-1344
- https://doi.org/10.1063/1.347269
Abstract
Effective-medium theories are formulated which predict the effective thermal conductivity of coated short-fiber composites. Composite aggregates that contain coated inclusions which may be aligned or randomly oriented are considered. A basic result which simplifies considerably the analysis of such systems in heat conduction problems is first established: It is shown that under certain situations a coated ellipsoidal inclusion can be replaced by an equivalent homogeneous but anisotropic one. For the composite with aligned short fibers, a microgeometry is constructed which possesses an exact solution for the effective conductivity. Self-consistent and differential schemes are formulated for the composite with randomly oriented coated short fibers.Keywords
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