Carbon nanofiber-network sensor films for strain measurement in composites

Nguyen Quang Nguyen, Sangyoon Lee, Nikhil Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A carbon nanofiber-based sensor film is designed and calibrated for force measurement. The sensor is designed for use in structural health monitoring of composite materials. The sensing scheme is based on creating a network of carbon nanofibers on the surface of the composite material. In the experimental scheme a patch of nanofiber reinforced epoxy resin film is developed and adhesively bonded to the laminate. The extension of the sensor film due to the applied force leads to a change in the connectivity of carbon nanofibers in the film, resulting in the change in the resistance of the network. Results show that such sensing schemes have high sensitivity and repeatability. Use of nanofibers can provide a low cost and more efficient alternative to other sensor films that rely on carbon nanotubes.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III
Number of pages7
StatePublished - 2009
EventMaterials and Devices for Smart Systems III - 2008 MRS Fall Meeting - Boston, MA, United States
Duration: Dec 1 2008Dec 4 2008

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


OtherMaterials and Devices for Smart Systems III - 2008 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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