Eddy Current Nondestructive Inspection of Graphite Epoxy Using Ferrite Cup Core Probes.

Abstract

This report summarizes the results of a three year project to develop the eddy current technical base for the detection and measurement of broken fiber damage in graphite epoxy using eddy current. Since graphite epoxy components are frequently made of panels having only one accessible surface, a single sided technique using a probe coil was required. Parameters of ferrite pot core probes which affect the defect sensitivity of the probe were identified and evaluated in terms of the coil efficiency factor or coupling coefficient. As a result of this investigation, it is possible to optimize eddy current probes for the single sided inspection of graphite epoxy and other high resistivity materials.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA189823

Entities

People

  • Susan N. Vernon

Organizations

  • Naval Surface Warfare Center

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aircrafts
  • Birds
  • Composite Materials
  • Delamination
  • Detectors
  • Engineering
  • Fabrication
  • Geometry
  • Laminates
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Phase Detectors
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Coastal Oceanography
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Systems Analysis and Design