When using the no penetration contact condition there are a few different approaches one could take to create them. If we have to two parts each with multiple surfaces that interact between the adjacent part (but not bonded) one option would be to use a no penetration component contact and select part A and part B. Another option would be to use one no penetration contact set where we select all interacting faces of component A in face set 1 and all of interacting faces of component B in face set 2. Yet another option would be to use multiple no penetration contact sets where one contact set would be created for each pair of adjacent interacting faces.

Of course, there are many factors that affect accuracy of results and solve time. So, for talking purposes on a given study and all things being equal except for the manner in which no penetration is applied my questions are:

Would Simulation analyze/solve these approaches differently?

Would you expect to see significant differences in the results (significant is relative, so let's say greater than 10%)?

Is there a significant difference in solve time between the different approaches?