Characterization of the electromagnetic parameter uncertainty in single-ply unidirectional carbon-fiber-reinforced-polymer laminas
| Autor: | Kevin L. Koudela, Ram M. Narayanan, Elliot J. Riley |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Carbon fiber reinforced polymer
Fabrication Materials science Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Reflectivity Industrial and Manufacturing Engineering 0104 chemical sciences Characterization (materials science) Mechanics of Materials Ceramics and Composites Fiber Composite material 0210 nano-technology |
| Zdroj: | Composites Part B: Engineering. 162:361-368 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2018.10.089 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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