The uniaxial tension of particulate composite materials with nonlinear interface debonding

H. Tan, Y. Huang*, C. Liu, G. Ravichandran, H. M. Inglis, P. H. Geubelle

*Corresponding author for this work

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

Debonding of particle/matrix interfaces can significantly affect the macroscopic behavior of composite material. We have used a nonlinear cohesive law for particle/matrix interfaces to study interface debonding and its effect on particulate composite materials subject to uniaxial tension. The dilute solution shows that, at a fixed particle volume fraction, small particles lead to hardening behavior of the composite while large particles yield softening behavior. Interface debonding of large particles is unstable since the interface opening (and sliding) displacement(s) may have a sudden jump as the applied strain increases, which is called the catastrophic debonding. A simple estimate is given for the critical particle radius that separates the hardening and softening behavior of the composite.

Original languageEnglish (US)
Pages (from-to)1809-1822
Number of pages14
JournalInternational Journal of Solids and Structures
Volume44
Issue number6
DOIs
StatePublished - Mar 15 2007

Keywords

  • Constitutive equation
  • Homogenization
  • Interface debonding
  • Particulate composites
  • Size effect

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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