The uniaxial tension of particulate composite materials with nonlinear interface debonding

H. Tan, Y. Huang* (Corresponding Author), C. Liu, G. Ravichandran, H.M. Inglis, P.H. Geubelle

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)


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
Pages (from-to)1809-1822
Number of pages14
JournalInternational Journal of Solids and Structures
Issue number6
Early online date12 Sept 2006
Publication statusPublished - 15 Mar 2007

Bibliographical note

This research was supported by the US Department of Energy and the US Department of Defense/Office of Land Warfare and Munitions under the Joint DoD/DOE Munitions Technology Development Program, the ASCI Center for Simulation of Advanced Rockets at the University of Illinois supported by US Department of Energy through the University of California under subcontract B523819, and ONR Composites for Marine Structures Program (Grants N00014-01-1-0205, Program Manager Dr. Y.D.S. Rajapakse).


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


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