Modeling supports that have been painted

[treemkr]

I am working a stress analysis of an existing hot piping system where numerous supports have been painted over the years. Pipe slides/guides where paint has filled gaps between pipe shoes and steel.

I am looking for suggestions when modeling in Caesar II. I assume one way is to define a higher friction factor, but, realistically, the movement force would build up to a point where the pipe breaks free and then the sliding resistance would be lower.

Any thoughts would be appreciated.

 

[DSB123]

Suggest you get the muppets who have painted the sliding surfaces to remove the paint. If there is no sign of movement on the paintwork between the surfaces and the system has been shutdown/heated up over the years then model as you see. (i.e. no movement on the paint evident) then "fix" the pipe in that direction at that support.