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Author Topic: HyperFEA Freezing whilst reading Nastran  (Read 266 times)

Gawain

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HyperFEA Freezing whilst reading Nastran
« on: November 04, 2019, 08:15:28 AM »
Hi

I have a very simply model, just a single flat plate (roughly 72 Quad elements) with simply edge supports and a PLOAD4 pressure applied.  When using HyperFEA it just freezing during the second iteration whilst running Nastran.  Looking in the analysis folder it looks like the Nastran model has not fully complete, as the .rcf, .bat files are still there, even though the .f06 says it's finished.

Running Nastran separately works fine, so I not sure why during the HyperFEA process it freezing and false to complete the Nastran run.  Any ideas?

Gawain

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Re: HyperFEA Freezing whilst reading Nastran
« Reply #1 on: November 05, 2019, 08:13:50 AM »
Problem solved.  It was a Nastran issue.  Nastran kept the .xdb file from the previous iteration and when trying to over-write for the next iteration, this caused Nastran to freeze and hence Hypersizer.  Changing to a .op2 output file resolved the issue.

Stephen

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Re: HyperFEA Freezing whilst reading Nastran
« Reply #2 on: November 05, 2019, 08:54:20 AM »
Gawain,

Glad you were able to resolve the issue!

-Stephen