A mean-field micromechanical formulation of a nonlinear constitutive equation of a two-phase composite

Tsukamoto, Hideaki (2010) A mean-field micromechanical formulation of a nonlinear constitutive equation of a two-phase composite. Computational Materials Science, 50 2: 560-570.


Author Tsukamoto, Hideaki
Title A mean-field micromechanical formulation of a nonlinear constitutive equation of a two-phase composite
Journal name Computational Materials Science   Check publisher's open access policy
ISSN 0927-0256
Publication date 2010-12
Sub-type Article (original research)
DOI 10.1016/j.commatsci.2010.09.019
Volume 50
Issue 2
Start page 560
End page 570
Total pages 11
Place of publication Amsterdam , The Netherlands
Publisher Elsevier BV
Collection year 2011
Language eng
Abstract In this paper, a mean-field micromechanical approach has been employed to formulate a nonlinear constitutive equation and yield conditions of a two-phase composite considering plastic and creep deformation of constituent phases. The derived constitutive equation is expressed in a piecewise linear-rate form, so it can be easily combined with common structural analyses such as a finite element analysis as well as lamination theories for typical continuous fiber-reinforced composite structures. The model has taken into account the threshold creep of constituent phases and diffusional mass transfer at the inclusion/matrix interface, which play a significant role in high-temperature deformation of short-fiber-reinforced metal matrix composites. A numerical study on anisotropy in Bauschinger effect and thermal-cycling creep of SiC whisker/Al matrix composites has been made based on the developed model. © 2010 Elsevier B.V. All rights reserved.
Keyword Nonlinear constitutive equation
Micromechanics
Composites
Creep
Diffusional mass transfer
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2011 Collection
 
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Created: Sun, 20 Feb 2011, 00:05:15 EST