Interfacial shear strength of Ti/SiC fibre composites measured by synchrotron strain measurement

Michael Preuss, G. Rauchs, P. J. Withers, E. Maire, J. Y. Buffiere

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Abstract

A single fibre Ti/SiCf composite sample was loaded incrementally and unloaded in-situ on a beam line at the European Synchrotron Research Facility (ESRF) in Grenoble. It was possible to measure the strain along the fibre with a high spatial resolution (50 μm) within the titanium matrix. The interfacial frictional shear strength inferred from the longitudinal strain profile of the broken fibre was calculated to be around 200 MPa. The result is compared to the interfacial shear stress derived from other methods developed to evaluate the matrix/reinforcement interface in this system. An axisymmetric finite element model gave good agreement between the numerical and experimental results.

Original languageEnglish
Pages (from-to)1381-1385
Number of pages5
JournalComposites Part A: Applied Science and Manufacturing
Volume33
Issue number10
DOIs
Publication statusPublished - Oct 2002
Externally publishedYes

Keywords

  • A. Metal-matrix composites (MMCs)
  • B. Fragmentation
  • B. Interface
  • C. Finite element analysis (FEA)
  • Strain scanning

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