Evaluation of dynamic hardening models for BCC, FCC, and HCP metals at a wide range of strain rates

Rate-dependent hardening model for pure titanium considering the effect of deformation twinning

“…The most effective way to apply the dynamic hardening behavior of the material to a numerical simulation is to use the dynamic hardening model. Various rate-dependent hardening models have been suggested by many researchers to represent the effects of the strain and the strain rate simultaneously on the complex hardening characteristics of metallic materials [24]. However, most of the models, such as the Johnson-Cook, the Zerilli-Armstrong, and the Khan-Huang, only describe dynamic recovery with an increase in the plastic strain.…”

“…In this research, the Lim-Huh model [27] is selected as the best model for representing the tensile stress-strain curves of the titanium. This selection is based on a comparison of the fitted tensile test results using several dynamic hardening models [24,28]. Fig.…”

Flow Stress of bcc Metals over a Wide Range of Temperature and Strain Rates

“…These are only few examples of an extensive literature. A detailed review of experimental testing and modelling for bcc metals can be found in [22,23] and more recently in [24][25][26].…”

Constitutive modeling and prediction of hot deformation flow stress under dynamic recrystallization conditions

“…Mirzadeh et al (2011a) have proposed a simple physically-based approach for constitutive analysis in hot working as an alternative for the conventional apparent approach. Huh et al (2014) have evaluated the dynamic hardening models of metallic materials for various crystalline structures. Mirzadeh et al (2012) have critically discussed the efficiency of artificial neural network, Arrhenius equation, and a proposed formula in prediction of DRX flow curves.…”