Dear Friends,
I am modeling buckling and post buckling of steel plate girder. How can I determine critical shear load or critical shear buckling stress from analysis?
Some papers (attached file) show me the critical shear load and critical shear buckling stress by using numerical analysis. However, they did not show me how to get these values.
Can anyboy help me?
Thank you so much
Dear Haider,
Thank you for answering me
I have already read this file. However, they just shown me how to perform eigenvalue buckling analysis. They did not show me how to determine critical buckling load from analysis. In my opinion, In order to get the critical buckling stress or load, we have to multiply the value of the first eigenvalue (obtained from eigenvalue buckling analysis ) to the applied load. However, in imperfection-sensitive structure, the first eigenmode may not characterize the deformation that leads to the lowest buckling load. We need to find other eigenmode. Therefore, we can not obtain the critical buckling load by this way.
Do you have any solution in this case?
Dear
Please see this article which may help:
www.mdpi.com/1424-8220/12/12/16024/pdf
Ammar
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