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The Effect of Interatomic Potentials on the Molecular Dynamics Simulation of Nanometric Machining

Oluwajobi, Akinjide O. and Chen, Xun (2011) The Effect of Interatomic Potentials on the Molecular Dynamics Simulation of Nanometric Machining. International Journal of Automation and Computing, 8 (3). pp. 326-332. ISSN 1476-8186

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Abstract

One of the major tasks in a Molecular Dynamics (MD) simulation is the selection of adequate potential functions, from which forces are derived. If the potentials do not model the behaviour of the atoms correctly, the results produced from the simulation would be useless. Three popular potentials namely; Lennard-Jones, Morse and Embedded-Atom Method (EAM) potentials, were employed to model copper workpiece and diamond tool in nanometric machining. From the simulation results and further analysis, the EAM potential was found to be the most suitable of the three potentials. This is because it best describes the metallic bonding of the copper atoms; it demonstrated the lowest cutting force variation; and the potential energy is most stable for the EAM.

Item Type: Article
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
Schools: School of Computing and Engineering
School of Computing and Engineering > Centre for Precision Technologies
School of Computing and Engineering > Centre for Precision Technologies > Advanced Machining Technology Group
School of Computing and Engineering > Diagnostic Engineering Research Centre
School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
School of Computing and Engineering > Informatics Research Group
School of Computing and Engineering > Informatics Research Group > XML, Database and Information Retrieval Research Group
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Depositing User: Sharon Beastall
Date Deposited: 03 Mar 2011 09:17
Last Modified: 29 Sep 2011 11:23
URI: http://eprints.hud.ac.uk/id/eprint/9704

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