Effects of interfacial friction on the damping characteristics of composites containing randomly oriented carbon nanotube ropes

Ailin Liu, Jin H. Huang, K. W. Wang, Charles E. Bakis

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

This article presents a model for describing the damping characteristics of uniaxially stressed polymeric composites filled with randomly oriented single-wall nanotube (SWNT) ropes. A close-packed lattice consisting of seven nanotubes in hexagonal array is used to present the nanoropes. The composite is described as a three-phase system composed of a resin, a resin sheath acting as a shear transfer zone, and SWNT ropes. The concept of 'stick-slip' motion caused by frictional contacts is proposed to describe the load transfer behavior between individual nanotubes and between a nanotube rope and a sheath. The results of the analytical study show that both the Young's modulus and the loss factor of the composite are sensitive to stress magnitude. Also, to show the inter-tube sliding effects due to nanotube aggregation, the Young's moduli and the loss factors of composites filled with aligned SWNTs, aligned nanoropes, and randomly oriented nanoropes are compared.

Original languageEnglish (US)
Pages (from-to)217-229
Number of pages13
JournalJournal of Intelligent Material Systems and Structures
Volume17
Issue number3
DOIs
StatePublished - Mar 1 2006

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

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