Hi to all,

I have a problem with excessive distorsion elements in submodeling explicit analysis.

This part is rotating starting from 0 to 42 rad/s in 1 second. At 78% of last step I get these distorsion.

Contact properties between two parts are: 

before step

*Surface Interaction, name=INTPROP-2
*Friction, ROUGH
*Surface Behavior, no separation, pressure-overclosure=HARD

after step

*CONTACT PAIR, INTERACTION=INTPROP-2,MECHANICAL CONSTRAINT=PENALTY

Someone has an idea of what happened?

Thanks

Best regards

Dario