Effective Shear Viscosity of Iron under Shock-Loading Condition

We combine the flyer-impact experiment and improve the finite difference method to solve whether the shear viscosity coefficient of shock iron is more reliable. We find that the numerical simulated profile agrees well with the measured one, from which the determined effective shear viscosity coefficients of shocked iron are 3000±100 Pa⋅s and 4000±100 Pa⋅s, respectively, at 103 GPa and 159 GPa. These values are more than 2000±300 Pa⋅s of Li Y L et al.Chin. Phys. Lett. 26 (2009) 038301 Our values are more reasonable because they are obtained from a comprehensive simulation for the full-shocked perturbation evolving process.