Interfacial shear and matrix plasticity during fiber push-out in a metal-matrix composite

D. A. Koss, R. R. Petrich, M. N. Kallas, J. R. Hellmann

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Interfacial shear during thin-slice fiber push-out of sapphre fibers bonded to a niobium matrix has been examined both experimentally and computationally. Observations indicate a failure process involving the combination of interfacial crack growth and diffuse matrix deformation at opposite ends of the fibers being displaced. The result is a stage during which 'stable' fiber displacement occurs under increasing axial loads applied to the fiber. A straightforward analysis of the extent of this stage suggests that it obeys a load instability criterion, depending on the competition between geometric softening due to interfacial crack growth and strain-hardening within the matrix near the interface.

Original languageEnglish (US)
Pages (from-to)27-33
Number of pages7
JournalComposites Science and Technology
Volume51
Issue number1
DOIs
StatePublished - Jan 1 1994

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Plasticity
Metals
Fibers
Composite materials
Crack propagation
Niobium
Axial loads
Strain hardening

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)

Cite this

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Interfacial shear and matrix plasticity during fiber push-out in a metal-matrix composite. / Koss, D. A.; Petrich, R. R.; Kallas, M. N.; Hellmann, J. R.

In: Composites Science and Technology, Vol. 51, No. 1, 01.01.1994, p. 27-33.

Research output: Contribution to journalArticle

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