Characterization of the electromagnetic parameter uncertainty in single-ply unidirectional carbon-fiber-reinforced-polymer laminas

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Abstract

This paper characterizes the variation in electromagnetic properties of single-ply unidirectional carbon-fiber-reinforced-polymer (CFRP) laminas between samples fabricated using the same material. The variation is referred to as the electromagnetic-parameter uncertainty (EPU). The resulting EPU from both wet-layup and pre-preg fabrication techniques were investigated. A free-space materials characterization system operating from 4 to 18 GHz was used to characterize the electromagnetic properties with respect to the main fiber direction. A surface-impedance representation was calculated from the measured data to expose the EPU. Finally, the effects of the EPU on the reflectivity properties of electromagnetic-absorber designs using unidirectional CFRP were determined.

Original languageEnglish (US)
Pages (from-to)361-368
Number of pages8
JournalComposites Part B: Engineering
Volume162
DOIs
StatePublished - Apr 1 2019

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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