Model construction with Python API

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Joined: Thu Dec 09, 2021 10:53 am

Re: Model construction with Python API

Post by ValentinaSB » Mon May 22, 2023 7:45 am

Hi Fabiola,

The problem why you couldn't run it was that when you assign your triangular_elements you selected not only faces but also edges and nodes. I reassigned it and now it runs.
Screenshot 2023-05-22 094005.jpg
Screenshot 2023-05-22 094005.jpg (176.71 KiB) Viewed 67 times
But now it asks you to insert peakShearStra for PressureIndependMultiYield
Screenshot 2023-05-22 094212.jpg
Screenshot 2023-05-22 094212.jpg (78.14 KiB) Viewed 67 times
Let us know if you need help

Best, Valentina
Schema 1.rar
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Posts: 16
Joined: Tue Jun 07, 2022 7:50 am

Re: Model construction with Python API

Post by Fabiola » Wed May 24, 2023 5:27 pm

Thank you so much Valentina!
I changed the parameters; but why doesn't my analysis run?
I attach my file below.
thanks again!!
Schema 1.rar
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Posts: 1811
Joined: Tue Oct 29, 2019 8:45 am

Re: Model construction with Python API

Post by STKO Team » Wed May 31, 2023 2:45 pm

Try this:
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The analysis was not running because you set a duration of 0.
Typically static analysis should have a duration of 1 (if you use a linear time series).
After the first analysis you should keep load constant and reset the time to 0 (otherwise it will mess up subsequent time Series)

The the dynamic analysis should have a non-zero duration (I used 25 in this case, due to the duration of your ground motion).
Then, you have to study the analysis settings. Many of them were wrong (system = Linear works only for linear materials, integrator = CentralDifference is for explicit dynamics, not for implicit ones, you don't have any damping, etc..)

Also, I found that applying your self weight assuming the model elastic, gives convergence issues when switching to plastic. So I set the material plastic from the beginning

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