Computational modeling of elastic properties of carbon nanotube/polymer composites with interphase regions. Part II: Mechanical modeling

Fei Han, Yan Azdoud, Gilles Lubineau

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We present two modeling approaches for predicting the macroscopic elastic properties of carbon nanotubes/polymer composites with thick interphase regions at the nanotube/matrix frontier. The first model is based on local continuum mechanics; the second one is based on hybrid local/non-local continuum mechanics. The key computational issues, including the peculiar homogenization technique and treatment of periodical boundary conditions in the non-local continuum model, are clarified. Both models are implemented through a three-dimensional geometric representation of the carbon nanotubes network, which has been detailed in Part I. Numerical results are shown and compared for both models in order to test convergence and sensitivity toward input parameters. It is found that both approaches provide similar results in terms of homogenized quantities but locally can lead to very different microscopic fields. © 2013 Elsevier B.V. All rights reserved.
Original languageEnglish (US)
Pages (from-to)652-661
Number of pages10
JournalComputational Materials Science
Volume81
DOIs
StatePublished - Jan 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Mechanics of Materials
  • Materials Science(all)
  • Computational Mathematics
  • Chemistry(all)
  • Computer Science(all)

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