As a point of interest I thought it might be worth mentioning that Autodesk Labs has a 'Piping Design Technology Preview'.
This is basically in the pipe stress analysis realm, so if your Stress Engineer is sad because you get to play with AutoCAD Plant 3D, but they have nothing new to try then direct them over to Autodesk Labs to give this a whirl!
http://labs.autodesk.com/utilities/piping_design_extender/overview/
disclaimer: The Labs Tech Preview is a standalone app that is not tied into Plant 3D in any way, this is merely a public service announcement from your friendly neighbourhood Plant 3D team. Happy stressing
🙂
-damian
Damian Willcox
Sr. XD Architect