Simple impact simulation do not converge


Hi,
I am trying to learn how to realize an impact test with RADIOSS. I folowed this tutorial from Altair University: https://www.youtube.com/watch?v=aDeNhQFvqjE&t=304s
I folowed every steps of this video but my simulation seems not to converge... I stopped it after 30 minutes and here is the last iteration message:
You can see that after 1715s I had an error of 99.9%, and the remaining time was increasing again and again (so the response couldn't converge)
Before running the test, I had no error in the model checker:
And here is the picture of mu model:
I attached a file to this post which is the model i use for this simulation.
Thank you very much for the help. Quentin BERMOND
- unit consistency: input units were defined as kg, m, s in the begin card, but initial velocity and material (steel?) had values more consistent with tonne, mm, s unit system
- impactor with 34000 mm/s (122.4 km/h) initial velocity and 450 kg mass has too much initial kinetic energy for the plate to absorb
- animation output frequency (ANIM/DT) was too low to capture deformations
- contact was modified

Hi,
the shared model had some issues:
The model is able to solve with failure plastic strain (EPS_p_max) defined. Without material fracture the model will fail to solve as the loading is so high the plate will undergo unrealistic deformations causing numerical difficulties.


Thank you very much for the help, I will try to run this simulation during the week with the modifications you suggested. I would never have noticed these errors without you since these values are directly taken from the Altair Tutorial.
Best regards, Quentin
help?