αcr - proper determining

[Anonymous]

Hi!

I am a freshly user of ARSA and I need a help.

I have tried on every way to solve this problem and this is too hard for me 🙂

Can anyone tell me how to proper determain an αcr (critical coefficient) in portal frame?

Best regards.

[Artur.Kosakowski]

Do you mean the critical coefficient for buckling analysis?

[Anonymous]

exactly.

[Artur.Kosakowski]

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Buckling-Analysis/m-p/3280269

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Critical-buckling-length/m-p/3841687

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[Tuctas]

You can vote my proposal in the wish list..
http://forums.autodesk.com/t5/Robot-Structural-Analysis/Coefficient-αcr-Alpha-critical-according-to-...

[Anonymous]

Thank you for your reply.

I have example like in the file. αcr should be 19,83. Can you tell me where i am doing fault. My αcr isn't even similiar than this.

[Artur.Kosakowski · Accepted solution]

1.974e1 = 1.974*10 = 19.74

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.