Transverse Cracking in a Fiber Reinforced Ceramic Matrix Composite

Abstract

The purpose of this study was to investigate the transverse cracking behavior of a fiber reinforced ceramic matrix composite. The major objectives were to determine the crack initiation stress and the minimum transverse crack spacing for different cross-ply lay-ups of SiC/1723, to provide explanation for the differences in the performance of the lay-ups, and to compare the test results to available theoretical models and to other composite systems. The thickness of the transverse ply was found to have a great effect on the transverse cracking behavior of laminates. The saturation crack spacing decreased as the transverse ply thickness was decreased. Classical laminate theory was used to predict crack initiation stresses and modulus of elasticity. A crack spacing theory based on shear lag analysis was applied. Comparisons were made to glass/epoxy and graphite/epoxy systems.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA231029

Entities

People

  • Steven E. Bachmann

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Ceramic Materials
  • Ceramic Matrix Composites
  • Composite Materials
  • Elastic Properties
  • Geometry
  • Glass Fibers
  • Graphitic Materials
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanics
  • Modulus Of Elasticity
  • Reinforced Plastics
  • Stress Strain Relations
  • Stresses

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials

Technology Areas

  • Space