International Journal of Automation and Computing

, 8:326

The effect of interatomic potentials on the molecular dynamics simulation of nanometric machining

Authors

    • Centre for Precision TechnologiesUniversity of Huddersfield
  • Xun Chen
    • Centre for Precision TechnologiesUniversity of Huddersfield
Article

DOI: 10.1007/s11633-011-0588-y

Cite this article as:
Oluwajobi, A. & Chen, X. Int. J. Autom. Comput. (2011) 8: 326. doi:10.1007/s11633-011-0588-y

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 (LJ), 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.

Keywords

Interatomic potentials molecular dynamics (MD) nanomachining modelling material removal

Copyright information

© Institute of Automation, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2011