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SPH method applied to high speed cutting modelling

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 arried 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. The developed approach is compared to machining dedicated code results and experimental data. The SPH cutting model has proved is ability to account for continuous to shear localized chip formation and also correctly estimates the cutting forces, as illustrated in some orthogonal cutting examples. Thus, comparable results to machining dedicated codes are obtained without introducing any adjusting numerical parameters (friction coefficient, fracture control parameter).
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Submitted on : Wednesday, August 28, 2019 - 11:48:41 AM
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Jérôme Limido, Christine Espinosa, Michel Salaün, Jean-Luc Lacome. SPH method applied to high speed cutting modelling. International Journal of Mechanical Sciences, Elsevier, 2007, 4 (7), pp.898-908. ⟨10.1016/j.ijmecsci.2006.11.005⟩. ⟨hal-02272886⟩



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