Numéro
J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1195 - 1200
DOI https://doi.org/10.1051/jp4:2006134182
Publié en ligne 26 juillet 2006
EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1195-1200

DOI: 10.1051/jp4:2006134182

A new approach of high speed cutting modelling: SPH method

J. Limido1, C. Espinosa1, M. Salaun1 and J.L. Lacome2

1  DGM, ENSICA, 1 place Emile Blouin, 31056 Toulouse Cedex 5, France
2  LSTC, Rue du Lanoux, 31330 Grenade sur Garonne, France


Published online: 26 July 2006

Abstract
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A lagrangian Smoothed Particle Hydrodynamics (SPH) based model is carried out using the Ls-Dyna software. SPH is a meshless method, thus large material distortions that occur in the cutting problem are easily managed and SPH contact control permits a “natural” workpiece/chip separation. Estimated chip morphology and cutting forces are compared to machining dedicated code results and experimental data. The developed SPH model proved its ability to account for continuous and shear localized chip formation and also correctly estimates the cutting forces, as illustrated in some orthogonal cutting examples.



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