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JRM Vol.9 No.6 pp. 455-460
doi: 10.20965/jrm.1997.p0455
(1997)

Paper:

A Combined Molecular Dynamics and Rigid-Plastic FEM Simulation of Atomic Level Cutting

Keiji Manabe, Manabu Isobe and Kanji Ueda

Faculty of Engineering, Kobe University, Rokkodai-cho, Nada-ku, Kobe-shi 657, Japan

Received:
9 October,1997
Accepted:
25 November, 1997
Published:
December 20, 1997
Keywords:
Cutting simulation, Atomic-order cutting process, Combined MD and rigid-plastic FEM method
Abstract

An atomic-level cutting process is simulated using the combined molecular dynamics (MD) method and the rigid-plastic finite element method (RPFEM). The algorithm for combining the MD and RPFEM was developed. The MD solution of the atomic displacements and the nodal displacements obtained by the RPFEM analysis are combined in the vicinity of the tool edge, so an atomic-level cutting process is simulated. The transition process at the beginning of cutting a single crystal of copper with a diamond tool is simulated. In this calculation, the atomic behavior in the shear zone near the tool edge and the plastic flow of the chip can be analyzed simultaneously. The proposed MD-RPFEM hybrid simulation is considered to be effective in analyzing the atomic-order cutting process.

Cite this article as:
Keiji Manabe, Manabu Isobe, and Kanji Ueda, “A Combined Molecular Dynamics and Rigid-Plastic FEM Simulation of Atomic Level Cutting,” J. Robot. Mechatron., Vol.9, No.6, pp. 455-460, 1997.
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