13 January 2019
ANSYS members like Sandeep and others are not permitted to download attachments, so I am inserting the images below for their benefit.
In Workbench Mechanical, you can define Frictional Contact by picking one set of faces for the Contact side on one brick, and a second set of faces for the Target side on the other brick.
You could make two sets of contacts, one for the boss and hole interface that might have a large gap, and a second contact for the horizontal faces that are touching. You might have to manually set the Pinball Radius on the first contact to a large number. This will force the Contact Tool to show that the contact pair with the large gap is Near Open, not Far Open.
Please explain how you want to use the COMBIN39.