Ultrasonic Inspection of a Graphite/Epoxy Structural Member Using a Thickness-Imaging Device.

Abstract

Structural members, serving as models of a foil support strut for hydrofoil craft, have been built using graphite/epoxy material. A nondestructive evaluation (NDE) test is required to measure delamination (ply separation) as well as delamination growth which may occur during the structural fatigue testing cycle. This report describes the results of the first test sequence, using a ultrasonic thickness imaging instrument to accomplish the required NDE. These results support the contention that the ultrasonic thickness imaging device may be used to measure delamination growth in graphite/epoxy composites. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1981
Accession Number
ADA096609

Entities

People

  • Henry H. Chaskelis

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Properties
  • Boats
  • Box Beams
  • Composite Materials
  • Delamination
  • Epoxy Composites
  • Graphitic Materials
  • Hydrofoil Craft
  • Inspection
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Measurement
  • Measuring Instruments
  • Test And Evaluation
  • Test Sets
  • Ultrasonic Inspection

Fields of Study

  • Materials science
  • Physics

Readers

  • Materials Science (Mechanical Engineering).
  • Medical Imaging.
  • Structural Dynamics.