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International Journal for Multiscale Computational Engineering

ISSN for PRINT: 1543-1649

Institutional price:	$747.00
Issues per year:	6

Best Paper Award Selection - Editorial Board Site

2004, Volume2

172 pages

DOI: 10.1615/IntJMultCompEng.v2.i1

Issue price - $178.00

3D Micromechanical Modeling of Particulate Composite Materials with Imperfect Interface

Z. Zhong
Key Laboratory of Solid Mechanics of MEC, School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, P. R. China

X. B. Yu
Key Laboratory of Solid Mechanics of MEC, School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, P. R. China

S. A. Meguid
Engineering Mechanics and Design Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8

ABSTRACT

In this article, we study the effective elastic and plastic properties of particle-reinforced composite materials with imperfect interface. The imperfect interface is described by a spring-type model assuming that the traction continuity remains intact, while the displacement experiences a jump proportional to the interfacial traction. Both the tangential and normal displacement discontinuities at the interfaces are considered and the effective elastic moduli are obtained using a generalized version of dilute model, self-consistent model, Mori—Tanaka model, and differential model. A comparison between the effective elastic moduli obtained by these different models is made, and the determination of an effective plastic behavior of particulate composite materials, by means of the Mori—Tanaka model and secant moduli method, is also discussed. Finally, we examine the influence of interfacial compliance on the macroscopic averaged mechanical properties of composite materials.