Hydrostatic Loading in NASTRAN In-CAD

This video explores how to capture hydrostatic load cases in Autodesk NASTRAN In-CAD. In the example, a tank of water is analysed.

[@marknorman4389]

Hi Francisco, really enjoying the Nastran video series you've created. We've only just got the software so slowly getting to grips with it. Keep it up and many thanks!!

[@rucaskeeper666]

Very nice tutorial. I have a question: why didn't you use the hydrostatic load option?

[@paulparker7992]

SUPERCEDED. Nastran Inventor now has hydrostatic loading. Also, as stated in another comment this should use shell elements not solids.

[@HealthMec]

Some how it does not work for me , the pressure seems to be evenly distributed

[@HoomanM]

There is a problem in your analysis though, you chose solid instead of shell. your Tank is a shell not a solid.

[@robinherrick4646]

Good video. I think Autodesk made a typo - shouldn't it be scaler rather than scalar?

[@robinherrick4646]

Note that there is a reported problem with Nastran In CAD and Autodesk say this method doesn't calculate correctly. See knowledge.autodesk.com/support/nastran-in-cad/troubleshooting/caas/sfdcarticles/sfdcarticles/Variable-load-gives-wrong-result-in-Autodesk-Nastran-In-CAD.html

[@drury2d8]

can you elaborate, the link is broken.

[@robinherrick4646]

@@drury2d8 Maybe Autodesk have fixed the calculation and taken down the knowledgebase article. I stopped using Nastran In-CAD a while ago.