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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Carbon fibers
Polymers
Fabrication
Uncertainty
carbon fiber
Fibers

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "Characterization of the electromagnetic parameter uncertainty in single-ply unidirectional carbon-fiber-reinforced-polymer laminas",
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.",
author = "Riley, {Elliot J.} and Koudela, {Kevin L.} and Narayanan, {Ram Mohan}",
year = "2019",
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doi = "10.1016/j.compositesb.2018.10.089",
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journal = "Composites Part B: Engineering",
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T1 - Characterization of the electromagnetic parameter uncertainty in single-ply unidirectional carbon-fiber-reinforced-polymer laminas

AU - Riley, Elliot J.

AU - Koudela, Kevin L.

AU - Narayanan, Ram Mohan

PY - 2019/4/1

Y1 - 2019/4/1

N2 - 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.

AB - 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.

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