Interfacial stress state present in a "thin-slice" fibre push-out test

M. N. Kallas, D. A. Koss, H. T. Hahn, J. R. Hellmann

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An analysis of the stress distributions along the fibre-matrix interface in a "thin-slice" fibre push-out test is presented for selected test geometries. For the small specimen thicknesses often required to displace large-diameter fibres with high interfacial shear strengths, finite element analysis indicates that large bending stresses may be present. The magnitude of these stresses and their spatial distribution can be very sensitive to the test configuration. For certain test geometries, the specimen configuration itself may alter the interfacial failure process from one which initiates due to a maximum in shear stress near the top surface adjacent to the indentor, to one which involves mixed mode crack growth up from the bottom surface and/or yielding within the matrix near the interface.

Original languageEnglish (US)
Pages (from-to)3821-3826
Number of pages6
JournalJournal of Materials Science
Issue number14
StatePublished - Jan 1 1992

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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