Dear all,

We are attempting to Provide "hydrostatic" data to our structural department from our pipe model. The Structural Department requests that forces imparted by the "fluid alone" at each support location during a hydrostatic test. We would like to take into account non-linearity effects during the hydrostatic test.

Our proposals are:
Load scenario 1
1. WW+HP+H (hydro test)
2. WNC+P1+H (dead load)
3. L1-L2 <--- "fluid alone load"

Load scenario 2
1. WW-WNC + H "fluid alone load" <-- where hangers are set to rigid

Which case is right, or is there a better scenario?

Also, does load scenario 2 carry any non-linearity responses if the model has non-linear items?

Do the added items in load scenario 1 (HP, P1) impart non-linearities that are valid?

super thanks,
mervyn