Chapter 45. Prediction of Elastic Properties of Ceramic Matrix Composites Using a Plain Weave Classical Laminate Theory

  1. John B. Wachtman Jr.
  1. K. Ranji Vaidyanathan,
  2. Ajit D. Kelkar and
  3. Jagannathan Sankar

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314234.ch45

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10

How to Cite

Vaidyanathan, K. R., Kelkar, A. D. and Sankar, J. (1993) Prediction of Elastic Properties of Ceramic Matrix Composites Using a Plain Weave Classical Laminate Theory, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314234.ch45

Author Information

  1. Department of Mechanical Engineering North Carolina A & T State University, Greensboro, NC 27411

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375273

Online ISBN: 9780470314234

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Keywords:

  • elastic properties;
  • orientations;
  • customized;
  • chemical vapor infiltration (CVI);
  • mechanical properties

Summary

An analytical technique using a plain weave classical laminate theory is used to predict the elastic properties of ceramic matrix woven fabric composites. The model uses the constituent material properties of the fiber, the interface, and the matrix. The analytical model is developed by considering a typical representative fabric element of the composite. Within this fabric element, a repeating unit, termed as unit cell is identified. An analytical procedure is developed to determine the elastic properties of a single plain weave fabric composite using the material properties of the constituents. These properties can be used to predict the elastic properties of ceramic laminates fabricated by stacking these plain weave plies at different orientations.

The model is tested for a graphite/epoxy woven composite with known experimental results and also extended to woven Nicalona fiber-reinforced SiC ceramic matrix composites with known experimental results. The developed model is able to predict both the modulii and Poisson's ratio which are close to the experimental values for the Nicalon/SiC system.