lateral-torsional buckling and local buckling
lateral-torsional buckling and local buckling
(OP)
Hello every body
Does anyone know how to design laterally loaded stiffened panel?
Design considerations are lateral-torsional buckling and also local buckling.
i am completely confused!....
Does anyone know how to design laterally loaded stiffened panel?
Design considerations are lateral-torsional buckling and also local buckling.
i am completely confused!....






RE: lateral-torsional buckling and local buckling
BA
RE: lateral-torsional buckling and local buckling
a circular plate with thichness of 5mm which is loaded by uniform lateral pressure of 5935 Pa.
2 plate stiffener with rectangular cross section (100mm * 10 mm) are welded to the plate inorder to prevent large deflection.
I have attached the picture.
Material :Steel
RE: lateral-torsional buckling and local buckling
BA
RE: lateral-torsional buckling and local buckling
I have attached the picture for you.
Ok, there is no probability for LTB.
How can I check local buckling?
I also need to know about "AISC code unity check".
i am mechanical engineer. would you please tell me how to check unity? i know nothing about it.
Best Regard.
RE: lateral-torsional buckling and local buckling
BA
RE: lateral-torsional buckling and local buckling
"How can I check local buckling?"
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Since plate is not subjected to any kind of point load or non-uniform loading; I don't see any local buckling problem in a plate. It seems that you are interested to know the deflection of the plate under uniform pressure loading.
Refer "Roarks formulas for stress & strain" book to determine the centre deflection, the max. stress of circular plate with uniform pressure loading.
This type of plate and loading are covered in table 11.2 case 10a.
else go for FEM model of plate and analysis to decide extra stiffening requirement of the plate.
Cheers! -VH
RE: lateral-torsional buckling and local buckling
Fortunately, it seems there is no probability of buckling.
I will be appreciated if anyone help me for "AISC unity check".
RE: lateral-torsional buckling and local buckling
Look into the plate slenderness limits (b/t ratios) in AISC to determine how much plate is effective in resisting the load. AISC isn't my code either so don't know where this is in the standard specification
RE: lateral-torsional buckling and local buckling
BA
RE: lateral-torsional buckling and local buckling
maximum stress in Stifener : 14.68 Mpa
maximum stress in plate : 3.33 Mpa
the deflection of plate should not exceed 2 mm.
Maximum deflection is 0.22 mm.
So, the problem is solved!
Thank to every body.