Chapter 56. Interaction Between 0 and 90 Layers of Cross-Ply Laminated Carbon-Carbon Composites

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. Mohamed S. Aly-Hassan1,
  2. Hiroshi Hatta2 and
  3. Shuichi Wakayama3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch56

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

How to Cite

Aly-Hassan, M. S., Hatta, H. and Wakayama, S. (2008) Interaction Between 0 and 90 Layers of Cross-Ply Laminated Carbon-Carbon Composites, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294741.ch56

Author Information

  1. 1

    Hatta Lab. Division of Space Propulsion The Institute of Space and Astronautical Science 3–1-1 Yoshinodai, Sagamihara-shi, Kanagawa-ken 229–8510, Japan

  2. 2

    The Institute of Space and Astronautical Science (ISAS) 3–1-1 Yoshinodai, Sagamihara-shi, Kanagawa-ken 229–8510, Japan

  3. 3

    Department of Mechanical Engineering, Tokyo Metropolitan University, 1–1 Minami-Ohsawa, Hachioji, Tokyo 192–0397, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375785

Online ISBN: 9780470294741

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Keywords:

  • carbon-carbon composites;
  • fraction;
  • microscopic;
  • mechanisms;
  • shear band formation

Summary

Fracture toughness tests for cross-ply laminated carbon-carbon composites (0/90 C/Cs) with various ply ratios of 0:90 fiber orientations were carried out to compare the fracture behavior. These experiments aimed not only to evaluate the formation of shear bands that might be extended from the notch tips by different extension lengths when change the stacking sequence but also to elucidate the interaction between 0 and 90 layers in case of stacking sequence 1:1. The fracture pattern for notched C/Cs (compact tension specimens) was found to transfer from the macro-mode I to macro-mode II when 0 plies fraction increased and transition occurred at ratio equal to 0.53. Thus, shear bands were not observed in the 2D C/Cs with the ratio less than 0.53 even in microscopic level but clearly observed zigzag cracking in 0 layers, splitting in 90. This zigzag crack was yielded due to the interaction between 0 and 90 layers in these materials. The zigzag crack with partial delaminations releases a large amount of energy, which gives rise to high fracture toughness in cross-ply C/C composites.