Chapter 25. Assessment of Damage Tolerance for Porous Ceramics

  1. Waltraud M. Kriven and
  2. Hua-Tay Lin
  1. Akihiko Suzuki,
  2. Hidenari Baba and
  3. Fumio Takemasa

Published Online: 27 MAR 2008

DOI: 10.1002/9780470294802.ch25

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

How to Cite

Suzuki, A., Baba, H. and Takemasa, F. (2003) Assessment of Damage Tolerance for Porous Ceramics, in 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3 (eds W. M. Kriven and H.-T. Lin), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294802.ch25

Author Information

  1. Ishikawajima-Harima Heavy Industries Co., Ltd. Shin-nakahara-cho 1, Isogo-ku, Yokohama, 235-8501 Japan

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2003

ISBN Information

Print ISBN: 9780470375839

Online ISBN: 9780470294802

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Keywords:

  • porous ceramics;
  • notched plate specimens;
  • nonlinear stress-strain curve;
  • porous cordierite;
  • plastic deformation

Summary

To show the existence of damage tolerance in porous ceramics, the nonlinear stress-strain behavior was investigated by using specimens of porous cordierite under tensile loading. The nonlinear stress-strain curve obtained was analyzed by the distributed-micro-crack model, which was a constitutive model for brittle materials and was developed here. The damage tolerance of the material was expected to have the effect of improving the reliability of the brittle material and components with such material. Tests were carried out using specimens of porous ceramics with various notch sizes to show that the notch sensitivity is low in this material and accordingly the reliability increases because of the damage tolerance.