Mortar Contact hard:
“Hard pressure-overclosure behavior is internally reduced to linear pressure-
overclosure behavior with the default constants. In case of mortar contact true
hard behavior can be simulated by omiting the *SURFACE BEHAVIOR card
within the *SURFACE INTERACTION card.”
If I’m not wrong this is not possible without custom cards in Prepomax right now. *SURFACE BEHAVIOR and *SURFACE INTERACTION are always created together.

