I am trying to analyze a 2 degree section of a tank with a non-uniform pressure load. I can't analyze a 90 degree section because it will be too big, its a faily complex wall section. I have used the advanced fixture of circular symmetry and it appears to be neglecting the hoop force to hold the wall and looks to be just pushing the wall over. I researched this a little bit and it appears that there may be a problem with that fixture within the solidworks software, but this was dated to the 2013 Solidworks. I have SW 2014 SP0. Here is a shot of the wall deformed out, note the bottom is fixed. Any thoughts?