To clarify the problem a bit, I'am analysing the topside piping system of a gas production wellhead platform. Due to the temperature of the produced gas the x-mass tree connections may move upwards as much as 250 mm.
At the moment I have modelled this connection as a rigid anchor with thermal...
After doing some searching on the web I found some information about hot sustained stress in a piping system. This can be analysed by removing the lift-off supports from the system and then checking the sustained stress.
For a "regular" piping system this works as lift-off is mainly due to the...
