Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites

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

Abstract

Carbon nanotubes (CNTs) are promising materials for increasing the damping of fiber reinforced composites on account of a hypothesized stick-slip dissipation mechanism. The current investigation aims to increase the damping of a carbon/epoxy composites by adding different types and amounts of CNTs to the interlayer regions [90] 6, [0]6 and [0/±45] carbon/epoxy laminates were manufactured using various types and concentrations of CNTs and surfactant. Dynamic behavior was characterized in terms of the storage and loss moduli and loss factor under tensile cyclic loading. For [0]6 and [0/±45] s laminates, the maximum increases in loss factor and loss modulus of roughly 400-600% were obtained with 10 volume percent CNT yarns aligned in the 0-deg. loading direction. The storage modulus of these laminates was not appreciably affected by the CNT yarns. Aligned CNT yarns provided higher damping than equivalent amounts of unaligned CNT buckypapers In a series of tests on 0-deg. laminates with and without aligned CNT yarns, damping increased with strain amplitude but not with mean strain, while damping in the baseline laminate was nearly invariant with strain. This series of tests also detected no lower threshold of strain for the onset of slip by CNT and a 10x reduction in the rate of increase of damping with strain amplitude when the amplitude exceeded 190 μϵ.

Original languageEnglish (US)
Title of host publication33rd Technical Conference of the American Society for Composites 2018
PublisherDEStech Publications Inc.
Pages1626-1640
Number of pages15
ISBN (Electronic)9781510872073
StatePublished - Jan 1 2018
Event33rd Technical Conference of the American Society for Composites 2018 - Seattle, United States
Duration: Sep 24 2018Sep 27 2018

Publication series

Name33rd Technical Conference of the American Society for Composites 2018
Volume3

Other

Other33rd Technical Conference of the American Society for Composites 2018
CountryUnited States
CitySeattle
Period9/24/189/27/18

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Carbon
Damping
Stiffness
Composite materials
Laminates
Yarn
Stick-slip
Surface-Active Agents
Surface active agents
Elastic moduli
Fibers

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

Cite this

Kim, J. J., Bakis, C. E., & Smith, E. (2018). Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites. In 33rd Technical Conference of the American Society for Composites 2018 (pp. 1626-1640). (33rd Technical Conference of the American Society for Composites 2018; Vol. 3). DEStech Publications Inc..
Kim, Jeffrey J. ; Bakis, Charles E. ; Smith, Edward. / Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites. 33rd Technical Conference of the American Society for Composites 2018. DEStech Publications Inc., 2018. pp. 1626-1640 (33rd Technical Conference of the American Society for Composites 2018).
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Kim, JJ, Bakis, CE & Smith, E 2018, Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites. in 33rd Technical Conference of the American Society for Composites 2018. 33rd Technical Conference of the American Society for Composites 2018, vol. 3, DEStech Publications Inc., pp. 1626-1640, 33rd Technical Conference of the American Society for Composites 2018, Seattle, United States, 9/24/18.

Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites. / Kim, Jeffrey J.; Bakis, Charles E.; Smith, Edward.

33rd Technical Conference of the American Society for Composites 2018. DEStech Publications Inc., 2018. p. 1626-1640 (33rd Technical Conference of the American Society for Composites 2018; Vol. 3).

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

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Kim JJ, Bakis CE, Smith E. Experimental evaluation of carbon nanotubes for high-stiffness damping augmentation in carbon/epoxy composites. In 33rd Technical Conference of the American Society for Composites 2018. DEStech Publications Inc. 2018. p. 1626-1640. (33rd Technical Conference of the American Society for Composites 2018).