Hello Denis,
Thanks for your answer.
The second link was helpful, but I'm looking for a table which included the correct parameters. I found on the internet a study about the dampings:
http://teaching.ust.hk/~mech300/mech300_7_1_damping_ref.pdf
But I'm not sure which damping needs me. (viscous damping ratio, material damping, loss factor, etc) First of all I have to clarify it.
I tried the 0.008 for the concrete block and 0.001 for aluminium specimen but the result of the simulation does not seem real. The local PTC support said me that I need to "iterate" these parameters based on the experience of the test.
Regards, Gyorgy
