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Fabrication, Optimization, and Characterization of PDMS/CNF Nanocomposite Sensor Arrays

[+] Author Affiliations
Wenyuan Luo, Yingtao Liu, Mrinal Saha

University of Oklahoma, Norman, OK

Steven Patterson, Thomas Robison

National Nuclear Security Administration’s Kansas City Plant, Kansas City, MO

Paper No. IMECE2018-86269, pp. V001T03A021; 6 pages
doi:10.1115/IMECE2018-86269
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5200-2
  • Copyright © 2018 by ASME

abstract

This paper presents the fabrication, optimization, and characterization of in-situ pressure sensor arrays using polydimethylsiloxane (PDMS) and carbon nanofibers (CNFs) nanocomposites. We first synthesize and characterize the nanocomposites to identify the optimal material formulation and fabrication procedure. Structural optimization algorithms and finite element method are employed to optimize the geometries of sensors. Pressure sensing units in cylinder and conical shapes are fabricated using the optimized material formulation and geometries. Two prototypes of sensors arrays are assembled and tested under different pressure load conditions. The long term sensor performance is validated using cyclic compression tests.

Copyright © 2018 by ASME

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