Contact problem. Static vs Dynamic

I have an impact model; steel presses down soft tissue.

I can solve this model in static analysis with prescribed displacement.

But when I solved the model in dynamic analysis with prescribed velocity, penetration occured.

Besides prescribed movement and solver, everythings are the same.

I do not understand why the model cannot be solved in dynamic analysis.

Actually error does not occured but there shouldn't be penetration.

I attached two files,

0-hyper.mph - static analysis
00-hyper.mph - dynamic analysis

Any help will be appreciated.

Thanks,


Jay