Johnson Cook Model and its applicability to PP

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Dear
All,

I would like to study the drop behaviour of Polypropylene at -30oC from a
height of 1.2 m. I have two questions in my mind:

Q 1: Is the Johnson/Cook model is the right choice for my kind of application?
I have seen many people using this model in their publications. But my concern
is that is it good model for Polypropylene as it is thermoplastics? I have
checked the material models from Abacus and in their matreial data base they
say it is good for metals only. I can see in this model that it takes into
consideration effects of strain rate, temperature and hardening.

Q2: What kind of tests I have to perfrom to get material data for my model:
tensile, compression etc and at what temperature these tests have to be
conducted? Is it possible that I perform my test at room temperature and at a
particular strain rate and then enter this data and my model will take into
consideration the variation of temperature and strain rates based upon my
boundary conditions etc. I reallly donot understand how it works?

I would be thankful if anyone could write me about my matter.

Thanks very much

Best Regards

Shahid