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Strengths of C/C composites under tensile, shear, and compressive loading: Role of interfacial shear strength

Authors
Journal
Composites Science and Technology
0266-3538
Publisher
Elsevier
Publication Date
Volume
65
Identifiers
DOI: 10.1016/j.compscitech.2005.07.012
Keywords
  • A. Carbon Fibers
  • B. Interfacial Strength
  • Strength
  • Stress/Strain Curves

Abstract

Abstract Various strengths of carbon–carbon composites (C/Cs) are comprehensively reviewed. The topics reviewed include tensile, shear, compressive, and fatigue strength as well as fiber/matrix interfacial strength of C/Cs. When data are available, high temperature properties, including creep behavior, are presented. Since C/Cs have extremely low fiber/matrix interfacial strength τ d, the interfacial fracture plays important roles in all of the fracture processes dealt in this review. The low τ d was found to divide tensile fracture units into small bundles, to seriously degrade both shear and compressive strength, and to improve fatigue performance. In spite of the importance of the interfacial strength of C/Cs, techniques for its evaluation and analysis are still in a primitive stage.

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