Hi, thanks for the reply.

I believe the model is well constrained, fixed at the bottom and applied a load up there in the middle of the beam. However, I am not sure how to check the initial contact status. HOw do we check it? And how do we "adjust to touch"? The gap between surfaces are just 2mm at most, to facilitate assembly in real life.

Some of the current faces that are connected are as follow. Hope it helps. I was forced to change the last pic from Frictional to Bonded due to the problem mentioned. That was the main purpose of this post. Thanks a lot for the help!!