Hello lunaenergy,

We found this comment on the Eng-Tips forum and thought it may help.

corus (Mechanical)
29 Apr 06 3:57
I don't understand why you're cutting layers from the assembly and what purpose this serves.

For the bolted connection you could simply restrain the pipe at the mating face of the bolt holes or a region around the bolt holes. If you wanted to include the stiffness and pretension of the bolts with contact between the mating faces then you'd have to look at using the Advanced Professional version.

corus