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 Scopus citations

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 - Dec 16 2010
Event51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Orlando, FL, United States
Duration: Apr 12 2010Apr 15 2010

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Other

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

All Science Journal Classification (ASJC) codes

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

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