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Journal of Materials Science

, Volume 20, Issue 1, pp 229–236 | Cite as

Electron emission and acoustic emission from the fracture of graphite/epoxy composites

  • J. T. Dickinson
  • A. Jahan-Latibari
  • L. C. Jensen
Papers

Abstract

In past studies it has been shown that the fracture of materials leads to the emission of a variety of species, including electrons, ions, neutral molecules, and photons, all encompassed by the term fracto-emission (FE). In this paper we examine electron emission (EE) from the fracture of single graphite fibres and neat epoxy resin. We also combine measurements of EE with the detection of acoustic emission (AE) during the testing of graphite-epoxy composite specimens with various fibre orientation. The characteristics of these signals are related to known failure mechanisms in fibre-reinforced plastics. This study suggests that by comparing data from AE and FE meausrements, one can detect and distinguish the onset of internal and external failure in composites. EE measurements are also shown to be sensitive to the locus of fracture in a composite material.

Keywords

Polymer Graphite Epoxy Composite Material Failure Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1985

Authors and Affiliations

  • J. T. Dickinson
    • 1
  • A. Jahan-Latibari
    • 1
  • L. C. Jensen
    • 1
  1. 1.Department of PhysicsWashington State UniversityPullman, WashingtonUSA

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