Composites with functionally graded interphases

Mesocontinuum concept and effective transverse conductivity

M. Ostoja-Starzewski, I. Jasiuk, W. Wang, K. Alzebdeh

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We consider a unidirectional fiber-reinforced composite with an interphase between the fiber and matrix taken as a graded zone of two randomly interpenetrating phases of these materials. In particular, we take this interphase as a functionally graded material (FGM). The objective of this paper is to present a micromechanics based method to treat FGM and to calculate the effective macroscopic properties (transverse conductivity, or, equivalently, axial shear modulus) of such a composite material. This problem requires the treatment of several length scales: the fine interphase microstructure, its mesocontinuum representation, the fiber size, and the macroscale level (of many fibers) at which the effective properties are defined. It is shown through an example that a convergent hierarchy of bounds on the effective response is obtained with systematically increasing mesoscale resolutions.

Original languageEnglish
Pages (from-to)2057-2066
Number of pages10
JournalActa Materialia
Volume44
Issue number5
DOIs
Publication statusPublished - May 1996

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Functionally graded materials
Fibers
Composite materials
Micromechanics
Elastic moduli
Microstructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys

Cite this

Composites with functionally graded interphases : Mesocontinuum concept and effective transverse conductivity. / Ostoja-Starzewski, M.; Jasiuk, I.; Wang, W.; Alzebdeh, K.

In: Acta Materialia, Vol. 44, No. 5, 05.1996, p. 2057-2066.

Research output: Contribution to journalArticle

Ostoja-Starzewski, M. ; Jasiuk, I. ; Wang, W. ; Alzebdeh, K. / Composites with functionally graded interphases : Mesocontinuum concept and effective transverse conductivity. In: Acta Materialia. 1996 ; Vol. 44, No. 5. pp. 2057-2066.
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