Application of homogenization method on the evaluation and analysis of the effective stiffness for noncontinuous carbon nanotube/polymer composites

Luo Dongmei, Wenxue Wang, Yoshihiro Takao

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The effective stiffness of noncontinuous carbon nanotubes (CNTs)/polymer composites are predicted by the homogenization method with exact periodic boundary conditions. Numerical calculations for regular and staggered array models are performed by the macro-microscopic finite element methods. The results are compared with those from Mori-Tanaka and Halpin-Tsai theories, which show that the stiffness of CNTs composites are not only related to aspect ratio and CNTs volume fraction as described in the earlier theories, but also sensitive to the space between CNTs ends, the distribution of CNTs within the selected representative volume element, and the geometrical shape of CNTs. The results from the two empirical approaches are included in the present results with special spacing ratios of horizontal and vertical fiber ends (T f/Hf). It is proved that the homogenization method is an efficient method to predict the effective stiffness of CNTs/polvmer composites with periodic microstructure.

Original languageEnglish
Pages (from-to)688-695
Number of pages8
JournalPolymer Composites
Volume28
Issue number5
DOIs
Publication statusPublished - Oct 1 2007

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Homogenization method
Carbon Nanotubes
Carbon nanotubes
Polymers
Stiffness
Composite materials
Macros
Aspect ratio
Volume fraction
Boundary conditions
Finite element method
Microstructure
Fibers

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Application of homogenization method on the evaluation and analysis of the effective stiffness for noncontinuous carbon nanotube/polymer composites. / Dongmei, Luo; Wang, Wenxue; Takao, Yoshihiro.

In: Polymer Composites, Vol. 28, No. 5, 01.10.2007, p. 688-695.

Research output: Contribution to journalArticle

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