TY - GEN
T1 - Damping characteristics of carbon nanotube-epoxy composites via multiscale analysis
AU - Liu, Ailin
AU - Wang, K. W.
AU - Bakis, Charles E.
PY - 2010/12/16
Y1 - 2010/12/16
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.
UR - http://www.scopus.com/inward/record.url?scp=84855625177&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855625177&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84855625177
SN - 9781600867422
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
BT - 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 12 April 2010 through 15 April 2010
ER -