Chapter 17. Fracture Mechanics Characterization of Crack/Fiber Interactions in Ceramic Matrix Composites

  1. William Smothers
  1. T. W. Coyle1,
  2. E. R. Fuller Jr.1,
  3. P. Swanson1 and
  4. T. Palamides2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320402.ch17

11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8

11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8

How to Cite

Coyle, T. W., Fuller, E. R., Swanson, P. and Palamides, T. (1987) Fracture Mechanics Characterization of Crack/Fiber Interactions in Ceramic Matrix Composites, in 11th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 8, Issue 7/8 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320402.ch17

Author Information

  1. 1

    Ceramics Div., Inst. Materials Sci. and Eng. National Bureau of Standards, Gaithersburg, MD 20899

  2. 2

    Drexel Univ. Philadelphia, PA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1987

ISBN Information

Print ISBN: 9780470374733

Online ISBN: 9780470320402

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Keywords:

  • ceramic matrix composites;
  • double-cleavage;
  • drilled compression (DCDC);
  • interfacial strength;
  • fiber-matrix system;
  • nomarsky contrast

Summary

A crucial factor in the structural performance of ceramic matrix composites is the influence of the fiber/matrix bond on the interaction of a matrix crack with the reinforcing fibers. To elucidate the character of this interaction under controlled fracture conditions, glass fracture mechanics specimens were fabricated in the double-cleavage, drilled compression (DCDC) configuration with simple arrays of fibers. Propagating cracks were observed in cross-polarized illumination to characterize determination of the fiber ahead of the crack and bridging interactions behind the crack tip. Stress wave fractography was employed to analyze the shape and relative velocity of the crack front.