Modified material constitutive models for serrated chip formation simulations and experimental validation in machining of titanium alloy Ti–6Al–4V

By M. Sima, Tugrul Özel. 2010

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Mesh influence in orthogonal cutting modelling with the Coupled Eulerian-Lagrangian (CEL) method (2017, unknown): “The feed force modelling is usually less accurate than for the cutting force (Ducobu et al., 2016b; Karpat, 2011; Sima and €Ozel, 2010; Zhang et al., 2011a) and these results follow the same trend.”
On the importance of the choice of the parameters of the Johnson-Cook constitutive model and their influence on the results of a Ti6Al4V orthogonal cutting model (2017, background): “According to Sima and Özel [13], the Johnson-Cook constitutive model does not represent accurately the behaviour of the material at high strain and the effects of strain, strain rate and temperature should be taken into account.”
On the selection of Johnson-Cook constitutive model parameters for Ti-6Al-4V using three types of numerical models of orthogonal cutting (2015, background): “Similar to Calamaz et al., Sima and Ozel [19] also modified the J-C model by considering the temperature depended strain softening.”