Multiscale analysis of the effect of carbon nanotube (CNT) functionalization on damping characteristics of CNT-based composites

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

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

Abstract

In this paper, the influence of carbon nanotube functionalization on interfacial shear strength and hence on damping characteristics of CNT-based polymeric composites is investigated with a multiscale model. The sequential multiscale approach consists of two parts. First, the interfacial shear strength between the functionalized nanotube and the polymer is calculated by simulating a CNT pull-out test using the molecular dynamics method. The strength values obtained from atomic simulation are then applied to a micromechanical damping model of a representative unit cell of a CNT/polymer composite under cyclic loading. The analysis results indicate that the nanotube functionalization increases the interfacial shear strength. The increased shear strength can either enhance or reduce the effective loss factor of the composite, depending on the operational stress range.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2010
Volume7643
EditionPART 1
DOIs
StatePublished - Jun 18 2010
EventActive and Passive Smart Structures and Integrated Systems 2010 - San Diego, CA, United States
Duration: Mar 8 2010Mar 11 2010

Other

OtherActive and Passive Smart Structures and Integrated Systems 2010
CountryUnited States
CitySan Diego, CA
Period3/8/103/11/10

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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