Mechanical characterization of graphite platelet nanocomposites through molecular mechanics and continuum modeling

J. Cho*, J. J. Luo, Isaac M Daniel

*Corresponding author for this work

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

Abstract

Mechanical properties of nanocomposites consisting of epoxy substrate reinforced by randomly oriented graphite platelets are studied with Mori-Tanaka method in collaboration with molecular mechanics. Elastic constants of graphite nanoplatelets which are the inclusion phase of the micromechanical model are calculated based on their molecular force field. The calculated elastic constants are well compared with the both experimental data and other theoretical predictions in literatures. The results from Mori-Tanaka's method based on the graphite modulus calculation from molecular mechanics are found that nanocomposite moduli have strong dependence on the aspect ratios of reinforcing particles, but no direct size dependence. The predicted nanocomposite moduli compare favorably with modulus measurement of several graphite particles of various aspect ratios and sizes. The experimental data also shows that particle sizes have very weak effect on nanocomposite moduli.

Original languageEnglish (US)
Title of host publicationProceedings of the Materials Division, The ASME Non-Destructive Evaluation Division and The ASME Pressure Vessels and Piping Division, 2006
Pages525-532
Number of pages8
DOIs
StatePublished - Dec 28 2007
Event2006 ASME International Mechanical Engineering Congress and Exposition - Chicago, IL, United States
Duration: Oct 5 2007Oct 10 2007

Other

Other2006 ASME International Mechanical Engineering Congress and Exposition
CountryUnited States
CityChicago, IL
Period10/5/0710/10/07

ASJC Scopus subject areas

  • Mechanical Engineering

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