Chapter 83. Thermo-Mechanical Fatigue Behavior of Cross-Ply Ceramic Matrix Composite Under Tension-Tension Loading

  1. J. P. Singh
  1. D. G. Allen and
  2. S. Mall

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294437.ch83

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3

How to Cite

Allen, D. G. and Mall, S. (1997) Thermo-Mechanical Fatigue Behavior of Cross-Ply Ceramic Matrix Composite Under Tension-Tension Loading, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294437.ch83

Author Information

  1. Wright-Patterson AFB, OH

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375495

Online ISBN: 9780470294437

SEARCH

Keywords:

  • ceramic matrix composite;
  • cyclic temperature;
  • damage rate;
  • fiber-matrix debonding;
  • mechanical loads

Summary

The purpose of this study was to investigate the effect of cyclic temperature and loading on the fatigue life of a cross ply ceramic matrix composite. The material used in this study was a potassium borosilicate glass (BSG) doped with 5% magnesium aluminosilicate (MAS) cordierite matrix reinforced with Nicalon (silicon carbide, SiC) fibers in a [0/90]45 lay-up. The thermomechanical tests were all performed with a period of 180 seconds/cycle, or 0.00556 Hz, and a triangular wave-form. All tests were tension-tension with a stress ratio of 0.1. The results indicate a much higher damage rate for thermo-mechanical fatigue than for high temperature isothermal mechanical fatigue, with the out-of-phase being much higher than the in-phase. By comparing with previous data, it is shown that frequency has no effect, thus the damage is a time dependent environmentally assisted crack growth and fiber-matrix debonding.