Dear Friends
I am comparing the buckling coefficients of the simply supported plate under shear forces obtained from theoretical solution and buckling analysis using abaqus.
In order to model shear forces in this plate, I apply some concentrated forces placed at all nodes along 4 edges (Each edge has 51 nodes) of this plate given in the attached file. After running buckling analysis, the mode shape is good. After that, I use the first mode shape to calculate the critical buckling load by using equation 2 in the attached file (calculation) and the get the buckling coefficient K(FEA) = 37.55
This value is totally different compare with the theoretical value (9.35).
Does any body know what the problem is?
Please give me some suggestions
Thank you so much
Thank you, Mr. Claudio Pedrazzi
I also wonder about what you mentioned. And now I understood.
That formula is taken from the Theory of Timoshenko 1961. It is also used for many papers. I give you the paper which is used this formula.
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