Paper Titles
Oragnizers
Preface
An Internal Variable Approach to Inelastic Deformation Including Structural Superplasticity
p.1
Mechanics of Carbon Nanotubes: A Continuum Theory Based on Interatomic Potentials
p.11
Plasticity-Related Microstructure-Property Relations for Materials Design
p.21
Discrete Dislocation Modeling of Plastic Flow Processes
p.31
Nanoindentation-Induced Collective Dislocation Behavior and Nanoplasticity
p.39
Analyses of Cavitation Instabilities in Ductile Metals
p.49
The Effect of Heating Rate on the Formability of Bulk Metallic Glass in a Supercooled Liquid Region
p.59

Mechanics of Carbon Nanotubes: A Continuum Theory Based on Interatomic Potentials

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Abstract:

It is commonly believed that continuum mechanics theories may not be applied at the nanoscale due to the discrete nature of atoms. We developed a nanoscale continuum theory based on interatomic potentials for nanostructured materials. The interatomic potential is directly incorporated into the continuum theory through the constitutive models. The nanoscale continuum theory is then applied to study the mechanical deformation and thermal properties of carbon nanotubes, including (1) pre-deformation energy; (2) linear elastic modulus; (3) fracture nucleation; (4) defect nucleation; (5) electrical property change due to mechanical deformation; (6) specific heat; and (7) coefficient of thermal expansion. The nanoscale continuum theory agrees very well with the experiments and atomistic simulations without any parameter fitting, and therefore has the potential to be utilized to complex nanoscale material systems (e.g., nanocomposites) and devices (e.g., nanoelectronics).

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Periodical:

Key Engineering Materials (Volumes 340-341)

Pages:

11-20

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.340-341.11

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Online since:

June 2007

Authors:

Han Qing Jiang, Keh Chih Hwang, Young Huang

Keywords:

Carbon Nanotube (CN), Continuum Theory, Interatomic Potential, Nanomechanics

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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