Experimental study of high electric current effects in carbon/epoxy composites

P. E. Deierling, O. I. Zhupanska

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Electrical and thermal behavior of the carbon fiber-reinforced epoxy composites subjected to relatively high (up to 75. A) steady electric currents is studied. A fully automated experimental setup for real time measurements of the electric current, resistance, voltage, and temperature in carbon fiber-reinforced epoxy matrix composites has been developed. A series of electrical characterization tests on IM7/977-3 unidirectional and symmetric cross-ply composite laminates have been performed and the effects of electric current magnitude and duration, electrical resistance, and associated thermal effects have been investigated. It is determined that electrical resistance exhibits time-dependent behavior. It is also found that application of an electric current leads to a significant temperature rise in the composites that is a result of the intense Joule heat produced in the electrically conductive carbon fibers as well as in the composite-electrode contact.

Original languageEnglish (US)
Pages (from-to)1659-1664
Number of pages6
JournalComposites Science and Technology
Volume71
Issue number14
DOIs
StatePublished - Sep 30 2011
Externally publishedYes

Keywords

  • A. Carbon fibers
  • A. Laminate
  • A. Polymer-matrix composites (PMCs)
  • B. Electrical properties
  • Electrical behavior

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering(all)

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