Integration of structurally embedded vascular antenna (Seva) in a complex curved composites

Jeffery W. Baur, Thao Gibson, Daniel Rapking, Shaun Murphy, Geoffrey J. Frank, Robyn Bradford, Gregory Huff, Darren J. Hartl, David Phillips

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Recently, a reconfigurable structurally embedded vascular antenna (SEVA) has been demonstrated in flat epoxy/quartz fiber composite panels based on the transport of liquid metal within embedded microchannels. The liquid metal is a non-toxic eutectic gallium-indium alloy which remains liquid down to -19°C, has low viscosity, and has high electrical conductivity. Patterned microchannels are created using fused deposition printing of sacrificial catalyzed poly(lactic acid) cPLA followed by transfer, composite lamination, composite cure, and then thermal removal of the sacrificial cPLA during post-cure. It has been previously demonstrated that when the resulting embedded channel are progressively filled with liquid metal and electromagnetically connected, their resonant frequency can be tuned over a large frequency range depending on the resulting shape of the liquid metal trace. The large frequency response, small footprint, low volume of the metal (<2%), and retention of an aerodynamically efficient shape makes SEVA attractive for reconfigurable aircraft antenna. Mechanical modeling and experimental testing of the microvascular panels has shown modest decreases in tensile strength due to the microchannels. This paper will describe the composite fabrication of a multi-element SEVA antenna array within a complex curved article that resembles an aircraft leading-edge.

Original languageEnglish (US)
Pages2477-2486
Number of pages10
StatePublished - Jan 1 2017
EventSAMPE Seattle 2017 Conference - Seattle, United States
Duration: May 22 2017May 25 2017

Other

OtherSAMPE Seattle 2017 Conference
CountryUnited States
CitySeattle
Period5/22/175/25/17

Fingerprint

Liquid metals
Microchannels
Antennas
Composite materials
Gallium alloys
Indium alloys
Aircraft
Quartz
Lactic acid
Antenna arrays
Eutectics
Frequency response
Printing
Natural frequencies
Tensile strength
Metals
Viscosity
Fabrication
Fibers
Liquids

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Baur, J. W., Gibson, T., Rapking, D., Murphy, S., Frank, G. J., Bradford, R., ... Phillips, D. (2017). Integration of structurally embedded vascular antenna (Seva) in a complex curved composites. 2477-2486. Paper presented at SAMPE Seattle 2017 Conference, Seattle, United States.
Baur, Jeffery W. ; Gibson, Thao ; Rapking, Daniel ; Murphy, Shaun ; Frank, Geoffrey J. ; Bradford, Robyn ; Huff, Gregory ; Hartl, Darren J. ; Phillips, David. / Integration of structurally embedded vascular antenna (Seva) in a complex curved composites. Paper presented at SAMPE Seattle 2017 Conference, Seattle, United States.10 p.
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Baur, JW, Gibson, T, Rapking, D, Murphy, S, Frank, GJ, Bradford, R, Huff, G, Hartl, DJ & Phillips, D 2017, 'Integration of structurally embedded vascular antenna (Seva) in a complex curved composites' Paper presented at SAMPE Seattle 2017 Conference, Seattle, United States, 5/22/17 - 5/25/17, pp. 2477-2486.

Integration of structurally embedded vascular antenna (Seva) in a complex curved composites. / Baur, Jeffery W.; Gibson, Thao; Rapking, Daniel; Murphy, Shaun; Frank, Geoffrey J.; Bradford, Robyn; Huff, Gregory; Hartl, Darren J.; Phillips, David.

2017. 2477-2486 Paper presented at SAMPE Seattle 2017 Conference, Seattle, United States.

Research output: Contribution to conferencePaper

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Baur JW, Gibson T, Rapking D, Murphy S, Frank GJ, Bradford R et al. Integration of structurally embedded vascular antenna (Seva) in a complex curved composites. 2017. Paper presented at SAMPE Seattle 2017 Conference, Seattle, United States.