Chapter 18. First-Cracking Strength of Short Fiber-Reinforced Ceramics

  1. John B. Wachtman Jr.
  1. C. K. Leung and
  2. V. C. Li

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch18

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Leung, C. K. and Li, V. C. (1989) First-Cracking Strength of Short Fiber-Reinforced Ceramics, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch18

Author Information

  1. Dept. of Civil Engineering Massachusetts Institute of Technology Cambridge, MA

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • polycrystalline alumina;
  • sic whisker;
  • silicon carbide;
  • thermal shock resistance;
  • electron microscopy

Summary

The relation between first-cracking strength and inherent flaw size of short fiber-reinforced ceramic (sfrc) are evaluated using a fracture mechanics approach. Such a relation can be employed to predict material reliability. Results of the present investigation shows that the material properties affecting sfrc behavior can be grouped into a single dimensionless term, L/uc that governs the behavior of sfrc. Sfrc with small L/uc values behave similarly to continuous fiber composites while sfrc with large L/uc behave similarly to ideally brittle materials (Griffith materials). L/uc is thus an important parameter to be considered in the design of sfrc.