Chapter 64. Effect of Frequency on Fatigue Behavior in Tyranno Fiber Reinforced Sic Composites

  1. Mrityunjay Singh and
  2. Todd Jessen
  1. Yohei Kaneko1,
  2. Shijie Zhu1,
  3. Yasuo Ochi1,
  4. Toshio Ogasawara2 and
  5. Takashi Ishikawa2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294680.ch64

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

How to Cite

Kaneko, Y., Zhu, S., Ochi, Y., Ogasawara, T. and Ishikawa, T. (2001) Effect of Frequency on Fatigue Behavior in Tyranno Fiber Reinforced Sic Composites, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch64

Author Information

  1. 1

    The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585 Japan

  2. 2

    National Aerospace Laboratory of Japan 6-13-1 Ohsawa, Mitaka, Tokyo, 181-0015 Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375730

Online ISBN: 9780470294680

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Keywords:

  • temperature;
  • fatigue;
  • composites;
  • monolithic;
  • aerospace

Summary

The fatigue tests of two types of 3-D Tyranno fiber reinforced SiC matrix composites were conducted at frequencies between 20 and 0.02Hz with a sine wave form and a stress ratio of 0.1 at room temperature. It was shown that the fatigue life of CVI composite was cyclic-dependent between 20 and 0.2Hz, but time-dependent between 0.2 and 0.02Hz. However, the fatigue life of PIP composite was strongly time-dependent between 20 and 0.2Hz. The reduction of Young's modulus and sliding stress of interface during fatigue was analyzed. The cyclic-dependent behavior was dominated by wear of interphase during cyclic loading-unloading. The time-dependent behavior was controlled by stress corrosion cracking of fiber and matrix.