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Predictive Capabilities and Limitations of Molecular Simulations

  • Mohammed CherkaouiEmail author
  • Laurent Capolungo
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 112)

Atomistic simulations – in which the position, velocity, and energy (among others) of each atom within a group of atoms subjected to various types of external constraints (e.g., displacement, temperature, stress) can be predicted – are particularly suited to study the response of nanocrystalline (NC) materials. Indeed, the size of numerically generated microstructures, typically varying from ~105 up to ~3.106 atoms, is sufficient to study both local processes, such as the emission of a dislocation from bicrystals, and larger scale processes, such as grain growth via grain boundary coalescence. The amazing predictive capabilities provided by atomistic simulations are unfortunately limited (1) by their computational cost and (2) by the description of the interaction between atoms via use of an energy potential function.

Keywords

Canonical Ensemble Molecular Dynamic Method Atomistic Simulation Partial Dislocation Interatomic Potential 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Georgia Institute of TechnologyAtlantaUSA
  2. 2.Los Alamos National LaboratoryLos AlamosUSA

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