An Image Analysis Technique for Evaluating Internal Damage in Graphite/Polyimide Fabric Composites

Abstract

The purpose of this paper is to suggest a possible technique for evaluating internal damage in fabric composite material. The technique presented in this work is based on capturing and performing a qualitative analysis of scanning electron microscope (SEM) images of damage from planar specimen slices and then reassembling the slices in three dimensional space. This method has been applied to evaluate damage in graphite/PMR-15 fabric Iosipescu specimens tested in shear. Three-dimensional damage maps have been presented and the extent of damage through the thickness of a graphite/PMR-15 Iosipescu specimen has been determined. The same approach could be used for the evaluation of internal damage in other composite systems.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1997
Accession Number
ADA329913

Entities

People

  • J. Mccarthy
  • K. Searles
  • M. Kumosa

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Advanced Materials
  • Composite Materials
  • Electron Microscopes
  • Epoxy Laminates
  • Failure Mode And Effect Analysis
  • Graphitic Materials
  • Image Processing
  • Materials
  • Materials Science
  • Materials Testing
  • Microscopes
  • Scanning Electron Microscopes
  • Shear Tests
  • Stresses
  • Three Dimensional
  • Two Dimensional

Readers

  • Computer Vision.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics
  • Space