How to determine composite material properties using numerical homogenization

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Abstract

Numerical homogenization is an efficient way to determine effective macroscopic properties, such as the elasticity tensor, of a periodic composite material. In this paper an educational description of the method is provided based on a short, self-contained Matlab implementation. It is shown how the basic code, which computes the effective elasticity tensor of a two material composite, where one material could be void, is easily extended to include more materials. Furthermore, extensions to homogenization of conductivity, thermal expansion, and fluid permeability are described in detail. The unit cell of the periodic material can take the shape of a square, rectangle, or parallelogram, allowing for all kinds of 2D periodicities. © 2013 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalComputational Materials Science
Volume83
Pages (from-to)488-495
ISSN0927-0256
DOIs
Publication statusPublished - 2014

Keywords

  • Numerical homogenization
  • Microstructure
  • MicroFE
  • Matlab

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