Reply To: what is difference between face to face contact and body to body contact?

[Armin]

No problem JooJaehoon!
It's important to choose the scoping method that best represents the physical contact conditions of the problem you are analyzing. If, for example, only two surfaces are interacting in an analysis, I believe the results for surface-to-surface (selecting the two interacting surfaces) and body-to-body scoping should be comparable.