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The Influence of Johnson-Cook Parameters on SPH modeling of Orthogonal Cutting of AISI 316L

Over the past few decades, there has been a growing interest in modelling of machining processes. In this regard, smoothed particle hydrodynamics (SPH) is one of the latest methods used for that purpose. SPH is a powerful technique that can be used in handling problems of large deformation that are difficult to be tackled using traditional finite element methods. The current work aims to present and evaluate the use of SPH in modelling the machining process. A coupled thermo-mechanical analysis of a 3D model is performed using ANSYS LS-DYNA to predict the cutting forces and residual stresses during orthogonal cutting of AISI 316L, at different sets of machining conditions. The Johnson-Cook material constitutive model is used to simulate the material behavior. The simulation results are validated by a previously published experimental work and compared to finite element model.