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Modeling interfacial effects on the thermal conduction behavior of short fiber reinforced composites

  • Dominik Duschlbauer , Helmut J. Böhm and Heinz E. Pettermann
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 102 Issue 6

Abstract

A replacement scheme is explored which uses perfectly bonded ellipsoidal replacement inhomogeneities to model the thermal conduction behavior of non-ellipsoidal fiber-like inhomogeneities with imperfect interfaces. Replacement conductivity and dilute gradient concentration tensors are introduced and their numerical evaluation from single-inhomogeneity models is discussed. The replacement tensors are incorporated into orientation averaged and multi-inclusion Mori–Tanaka schemes to study the thermal conduction responses of composites reinforced by randomly oriented short fibers at non-dilute volume fractions. 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.

Keywords: Composites; Heat conduction; Interface; Modeling
* Correspondence address, Dr. Helmut J. Böhm Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology Gußhausstr. 27–29, A-1040 Vienna, Austria Tel.: +43 1 58801 31712 Fax: +43 1 58801 31799 E-mail:

Dedicated to Prof. F. D. Fischer on the occasion of his 70th birthday

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Received: 2010-12-16
Accepted: 2011-3-17
Published Online: 2013-06-11
Published in Print: 2011-06-01

© 2011, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110515
Keywords for this article
Composites; Heat conduction; Interface; Modeling

Articles in the same Issue

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  11. Strategies for fracture toughness, strength and reliability optimisation of ceramic-ceramic laminates
  12. Fracture statistics of brittle materials at micro- and nano-scales
  13. Martensitic phase transformations of nanocrystalline NiTi shape memory alloys processed by repeated cold rolling
  14. Variational modeling of shape memory alloys – an overview
  15. Phase-field approach to martensitic phase transformations: Effect of martensite–martensite interface energy
  16. Modelling of diffusive and massive phase transformations in binary systems – thick interface parametric model
  17. On the strength of grain and phase boundaries in ferritic-martensitic dual-phase steels
  18. A micro-level strain analysis of a high-strength dual-phase steel
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