The Effects of Jet Exhaust Blast Impingements on Graphite-Epoxy Composites.

Abstract

The effect of jet exhaust blasts on graphite epoxy composites (Hercules 3501-6/AS4) is examined. The material degradation of the composites is determined by means of the short beam shear test. The jet exhaust tests were designed to test the worst case conditions for an F-18 aircraft operating off an aircraft carrier. Results indicate that the composites show no significant property changes if the temperature is maintained less than 230 C. At temperatures in excess of these, strength degradation occurs. It was also observed that when strength degradation occurs, obvious discoloration and delamination of the composite are evident. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1981
Accession Number
ADA104622

Entities

People

  • John Michael Hampey

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aging (Materials)
  • Aircrafts
  • Composite Materials
  • Delamination
  • Epoxy Composites
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Mechanics
  • Reinforced Plastics
  • Shear Tests
  • Test Methods

Readers

  • Combustion and Flow Dynamics.
  • Reinforced Composite Materials