Chapter 15. Modeling of Flexural Behavior of Continuous Fiber Ceramic Composites

  1. John B. Wachtman Jr.
  1. S. Raghuraman,
  2. E. Lara-Curzio and
  3. M. K. Ferber

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch15

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Raghuraman, S., Lara-Curzio, E. and Ferber, M. K. (1996) Modeling of Flexural Behavior of Continuous Fiber Ceramic Composites, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch15

Author Information

  1. Metals and Ceramics Division Oak Ridge National Laboratory Oak Ridge, TN 37831

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • flexural behavior;
  • continuous fiber-reinforced ceramic composites;
  • finite element analysis;
  • weak interlaminar properties;
  • flexural strengths

Summary

The flexural behavior of 2-D continuous fiber-reinforced ceramic composites (CFCC) is modeled using a finite element analysis. This model extends the analysis of Steif and Trojnacki [1] to account for the effect of the weak interlaminar properties of most 2-D CFCCs on their flexural behavior. The model predictions confirm the findings of Steif and Trojnacki [1] that the slope of the slow decaying tail which arises from fiber pull-out and that would be observed experimentally in the tensile stress-strain curve when the test is conducted under displacement-controlled loading conditions is the most influential parameter in the difference between tensile and “flexural strengths”. The model predictions are used to explain the difference between tensile and “flexural strengths” and to assess the effect of specimen geometry (e.g. span and specimen thickness) on the bending behavior of 2-D CFCCs.