Reply To: artificial stresses at the fixed points in thermo-structural analysis

[dlooman]

The elastic support would tend to cancel out the pressure load.  Is the pressure load supposed to be carried at the bolt holes?  If so, a remote displacement in UY could be used at the center of each hole instead of the elastic support.  Use deformable behavior to prevent non-physical thermal stress.  (The warning message can be ignored.  The program isn't considering the role of the elastic support to prevent rigid body motion.)