Analysis of hollow inclusion-matrix debonding in particulate composites

Research output: Contribution to journalArticle

Abstract

This work aims at understanding the effect of particle-matrix interfacial debonding on the tensile response of syntactic foams. The problem of a single hollow inclusion with spherical-cap cracks embedded in a dissimilar matrix material is studied. Degradation of elastic modulus, cavity formation in the proximity of debonded regions, stress localization phenomena in the inclusion, debonding energetics, and crack kinking are studied for a broad range of inclusion wall thickness and debonding extent. A series solution based on the Galerkin method is proposed and validated through comparison with findings from boundary element and finite element methods. Results are specialized to glass particle-vinyl ester matrix systems widely used in marine structural applications. The insight gained into the role of particle-matrix debonding extent and inclusion wall thickness is useful in understanding the possible failure mechanisms of syntactic foams under tensile and flexural loading conditions and in tailoring their parameters for specific applications.

Original languageEnglish (US)
Pages (from-to)2164-2177
Number of pages14
JournalInternational Journal of Solids and Structures
Volume47
Issue number16
DOIs
StatePublished - Aug 1 2010

Fingerprint

Debonding
particulates
hollow
Inclusion
Composite
inclusions
composite materials
Foam
Composite materials
Syntactics
matrices
foams
Foams
Crack
cracks
Insulator Elements
kinking
spherical caps
Cracks
matrix materials

Keywords

  • Composites
  • Debonding
  • Effective behavior
  • Interface crack
  • Numerical solution
  • Syntactic foam

ASJC Scopus subject areas

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

Cite this

Analysis of hollow inclusion-matrix debonding in particulate composites. / Tagliavia, G.; Porfiri, Maurizio; Gupta, Nikhil.

In: International Journal of Solids and Structures, Vol. 47, No. 16, 01.08.2010, p. 2164-2177.

Research output: Contribution to journalArticle

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