Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis

Ailin Liu, K. W. Wang, Charles E. Bakis

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

4 Citations (Scopus)

Abstract

In this paper, the damping characteristics of epoxy resin containing aligned or randomly oriented carbon nanotube (CNT) ropes are investigated via a multiscale analysis approach. The shear strengths at the inter-tube and tube-resin interfaces are calculated using molecular dynamics simulations of nanotube pullouts before being applied to a micromechanical damping model. In the micromechanical model, the composite is described as a three-phase system composed of a resin, a resin sheath acting as a shear transfer zone, and a carbon nanotube rope. The concept of stick-slip motion is used to describe the load transfer behavior between carbon nanotubes in a rope as well as between nanotubes and the surrounding sheath. Both the energy dissipations from the viscoelastic polymer matrix and from the stick-slip motion are included in the overall structural damping characteristics. The effect of nanorope alignment on damping characteristics is also presented.

Original languageEnglish (US)
Title of host publication51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
StatePublished - 2010
Event51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Orlando, FL, United States
Duration: Apr 12 2010Apr 15 2010

Other

Other51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityOrlando, FL
Period4/12/104/15/10

Fingerprint

Carbon nanotubes
Damping
Stick-slip
Resins
Composite materials
Nanotubes
Polymer matrix
Epoxy resins
Shear strength
Interfaces (computer)
Molecular dynamics
Energy dissipation
Computer simulation

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

Cite this

Liu, A., Wang, K. W., & Bakis, C. E. (2010). Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis. In 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [2010-2896]
Liu, Ailin ; Wang, K. W. ; Bakis, Charles E. / Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis. 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2010.
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Liu, A, Wang, KW & Bakis, CE 2010, Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis. in 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference., 2010-2896, 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Orlando, FL, United States, 4/12/10.

Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis. / Liu, Ailin; Wang, K. W.; Bakis, Charles E.

51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2010. 2010-2896.

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

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T1 - Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis

AU - Liu, Ailin

AU - Wang, K. W.

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PY - 2010

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N2 - In this paper, the damping characteristics of epoxy resin containing aligned or randomly oriented carbon nanotube (CNT) ropes are investigated via a multiscale analysis approach. The shear strengths at the inter-tube and tube-resin interfaces are calculated using molecular dynamics simulations of nanotube pullouts before being applied to a micromechanical damping model. In the micromechanical model, the composite is described as a three-phase system composed of a resin, a resin sheath acting as a shear transfer zone, and a carbon nanotube rope. The concept of stick-slip motion is used to describe the load transfer behavior between carbon nanotubes in a rope as well as between nanotubes and the surrounding sheath. Both the energy dissipations from the viscoelastic polymer matrix and from the stick-slip motion are included in the overall structural damping characteristics. The effect of nanorope alignment on damping characteristics is also presented.

AB - In this paper, the damping characteristics of epoxy resin containing aligned or randomly oriented carbon nanotube (CNT) ropes are investigated via a multiscale analysis approach. The shear strengths at the inter-tube and tube-resin interfaces are calculated using molecular dynamics simulations of nanotube pullouts before being applied to a micromechanical damping model. In the micromechanical model, the composite is described as a three-phase system composed of a resin, a resin sheath acting as a shear transfer zone, and a carbon nanotube rope. The concept of stick-slip motion is used to describe the load transfer behavior between carbon nanotubes in a rope as well as between nanotubes and the surrounding sheath. Both the energy dissipations from the viscoelastic polymer matrix and from the stick-slip motion are included in the overall structural damping characteristics. The effect of nanorope alignment on damping characteristics is also presented.

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M3 - Conference contribution

SN - 9781600867422

BT - 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

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Liu A, Wang KW, Bakis CE. Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis. In 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2010. 2010-2896