The study on plastic flow behavior and constitutive model of h96 brass alloy under compression

The plastic behavior of H96 brass alloy under a wide range of temperatures ranging from 20°C to 600°C and strain rates ranging from 0.01 s−1 to 6300 s−1 was studied by Gleeble-3500 simulator and split Hopkinson bar test. The results show that the flow stress increases with the strain and strain rate, while decreases with the temperature. The flow behavior is modeled by Johnson-Cook model and the parameters were obtained by regressions. The effect of strain rate and temperature on the flow stress was studied by modified JC model.