Domain integrals for axisymmetric interface crack problems

R. Nahta*, Brian Moran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

New domain integrals for axisymmetric interface crack problems are derived. Special attention is given to the specification and subsequent treatment of auxiliary fields for the extraction of mixed-mode stress intensity factors using interaction energy integrals. The effect of crack front curvature is shown to play an important role in the derivation of the integrals. Numerical examples include an interface penny-shaped crack and a longitudinal interface crack (fiber pull-out problem), and yield very accurate and consistent results, when compared with analytical solutions from the literature. The method is particularly suited for the analysis of fiber pull-out experiments and the accurate determination of fracture-parameters such as energy release rate G, mixed-mode stressintensity factors KI and KII and phase angle ψ.

Original languageEnglish (US)
Pages (from-to)2027-2040
Number of pages14
JournalInternational Journal of Solids and Structures
Volume30
Issue number15
DOIs
StatePublished - Jan 1 1993

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Domain integrals for axisymmetric interface crack problems'. Together they form a unique fingerprint.

Cite this