Int.J.Mater.Res. 2011/6, 717-726, 2011
D. Duschlbauer1, H.J. Böhm2,
1AECOM, Sydney, Australia
2Institute of Lightweight Design and Structural Biomechanics,
TU Wien, Vienna, Austria
A replacement scheme is explored which uses perfectly bonded ellipsoidal
replacement inhomogeneities to model the thermal conduction behavior of
non-ellipsoidal fiberlike inhomogeneities with imperfect interfaces.
Replacement conductivity and dilute gradient concentration tensors are
introduced and their numerical evaluation from singleinhomogeneity models is
The replacement tensors are incorporated into orientation averaged and
multiinclusion Mori–Tanaka schemes to study the thermal conduction responses of
composites reinforced by randomly oriented short fibers at non-dilute volume
Results on the effective conductivities and the local fields in individual
fibers are compared to predictions from numerical homogenization of unit cells
containing periodic arrangements of randomly oriented short fibers in a matrix.