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Prestress ANSYS WB, ASME Sec VIII Div 2, Buckling Check

Prestress ANSYS WB, ASME Sec VIII Div 2, Buckling Check

Prestress ANSYS WB, ASME Sec VIII Div 2, Buckling Check

(OP)
Hi,

I'm trying to practice Example E5.4 from PTB-3-2013 in Workbench (protection against collapse by buckling)

How does one apply a pressure to create a prestressed state, then add a perturbation and then get the eigenvalues from the elastic buckling solution? I believe the pre-stress from the eigenvalue buckling analysis will take either the initial pressure or the perturbation.

Thank you

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