Tons of searching through the articles really exhausted me. I find the parameters for the different type of Steels and AL and EVEN other alloys of Mg. But there isn't any kind of single resource for Pure Mg.

I would like to know "Johnson-Cook parameters of pure magnesium" A, B, C, n.

Another issue is about Johnson-Cook model which includes damage parameter "D". As I Found on SFTC-DEFORM document, they use a rare equation that includes damage and vague parameters like  "Tb", "E", "D0", "K", "Betha"

Attached file is the SFTC-DEFORM equation for J_C model.

I can summarize inquires like this:

1- what are the correct values for A, B, C, n in J_C model?

2-If I wanna employ damage form, what should I do for "Tb", "E", "D0", "K", "Betha when I do not even what are they stand for!?

I really, really appreciate your prompt attention and help!