Impact Damage in Carbon-Carbon Composites.

Abstract

The damage to three-dimensional orthogonal carbon-carbon composites created by particle impacts ranging from 1800 to 6000/ms has been characterized for three weave constructions at both ambient and at temperatures up to 3500 C. The subsurface damage modes in the vicinity of the impact crater are described for the range of conditions investigated. Hypotheses are advanced concerning the failure modes and kinetics for the material ejected from the crater based on examination of sectioned specimens and high-speed photographic sequences. Penetration, compliance and plane-strain compression tests are utilized to supply mechanical characterization data for the dominant modes of failure, which are analyzed in terms of the dynamic stress states which develop in the three-dimensional composites during the collision cycle. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 11, 1977
Accession Number
ADA047306

Entities

People

  • Anthony G. Evans
  • William F. Adler

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Carbon Carbon Composites
  • Composite Materials
  • Electron Microscopy
  • Engineering
  • Materials
  • Materials Laboratories
  • Materials Science
  • Measurement
  • Mechanics
  • Military Research
  • Modulus Of Elasticity
  • Physics Laboratories
  • Plastic Properties
  • Resistance
  • Shear Stresses
  • Test Facilities

Readers

  • Explosive Engineering.
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.