Hello,
I was trying to follow the tutorial on fiber columns where I encountered the non convergence problem. I have attached the tutorial link and the created file. https://youtu.be/vPB9ZwTZbNw?si=qAIyzDIpDyRMQydp.Please help.
Thank You
Non Convergence during analysis
Non Convergence during analysis
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- fiber column.rar
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- non convergence.png (77.68 KiB) Viewed 373 times
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kesavapraba
- Posts: 468
- Joined: Sat Mar 28, 2020 2:25 pm
Re: Non Convergence during analysis
Hi, Please note the three things in your model, as follows:
1] Torsional stiffness (GJ) of the beam section can't be zero, as it will show singularity issue in the stiffness matrix.
2] You can use "LoadControl" integrator instead of "ArcLength", as the setting parameters for the arc length method is tricky!
3] No analysis settings has been provided for the last analysis (adaptive..), so either you should specify the analysis settings explicitly in the TCL script or disable the wipeAnalysis in the previous setting.
You can see the revised model in the attached file here.
1] Torsional stiffness (GJ) of the beam section can't be zero, as it will show singularity issue in the stiffness matrix.
2] You can use "LoadControl" integrator instead of "ArcLength", as the setting parameters for the arc length method is tricky!
3] No analysis settings has been provided for the last analysis (adaptive..), so either you should specify the analysis settings explicitly in the TCL script or disable the wipeAnalysis in the previous setting.
You can see the revised model in the attached file here.
- Attachments
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- fiber column_rev.zip
- (148.36 KiB) Downloaded 55 times
:: With best wishes ::
Prabakaran Kesavan
Prabakaran Kesavan
Re: Non Convergence during analysis
Thank you very much.
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kesavapraba
- Posts: 468
- Joined: Sat Mar 28, 2020 2:25 pm