Hello Joe;
I know of two FEA programs available you may be interested in looking at. They are inexpensive template-driven programs that let piping & vessel engineers input simple geometry and create/analyze an FE model of various such non-standard components.
Output includes SIFs, stresses, allowable stresses, allowable loads and flexibilities.
More information can be found at http://www.codecad.com/PRG.htm
Image attached fyi.