Dynamic Response and Simulations of Nanoparticle-Enhanced Composites

Abstract

Objectives of this research are to characterize the: (a) vibration and acoustic response; (b) low-velocity impact and high-strain energy absorption; (c) effects of freeze-thaw cycling; and (d) molecular dynamics simulations of nanoparticle-enhanced composites and fly- ash based foams that are being considered for the future generation naval structures or retrofitting of existing ones. In this study, the flexural/extensional dynamic modulus, damping, low-velocity impact and high-strain (Hopkinson bar) response of nylon 6,6 thermoplastic reinforced with multi-wall carbon nanotubes (MWCNT) were characterized. Preliminary investigations were also conducted on Derakane 411-350 vinyl ester thermoset, reinforced with Cloisite 30B nanoclay and exfoliated graphite nanoplatelets (xGnP). Molecular Dynamic (MD) simulations are used for obtaining the elastic constants (Cij) of SwCNT, MWCNT and nylon 6,6 nanocomposites.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 2007
Accession Number
ADA474745

Entities

People

  • Ahmed Al-ostaz
  • Alexander H. Cheng
  • P. R. Mantena

Organizations

  • University of Mississippi

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Carbon Nanotubes
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Molecular Dynamics
  • Plastics
  • Polymer Matrix Composites
  • Standing Waves
  • Thermodynamics

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Nanocomposite Materials Science
  • Reinforced Composite Materials

Technology Areas

  • Biotechnology