Buckling analysis of a preloaded square plate using FEA (Nastran)
Buckling analysis of a preloaded square plate using FEA (Nastran)
(OP)
Dear Sir/Madam,
I would like to know how to do buckling analysis on a square plate that is already been pre-loaded under a shear load (qb).
That is I have a square plate model that needs to be stressed by loading in shear (qb) initially along the two plate (left & right) edges. Then I need to do a linear buckling solution to find how much compressive load (fb) is required (on the plate left and right edges) for the buckling to take place. How do I initially apply the shear pre-load (qb) to pre-stress the plate before loading the compressive load (fb) to analyse the linear buckling load.
For your information I am using Msc Nastran for windows.
Any help would be gratefully appreciated. Many thanks for looking into my problem.
Best Regards
I would like to know how to do buckling analysis on a square plate that is already been pre-loaded under a shear load (qb).
That is I have a square plate model that needs to be stressed by loading in shear (qb) initially along the two plate (left & right) edges. Then I need to do a linear buckling solution to find how much compressive load (fb) is required (on the plate left and right edges) for the buckling to take place. How do I initially apply the shear pre-load (qb) to pre-stress the plate before loading the compressive load (fb) to analyse the linear buckling load.
For your information I am using Msc Nastran for windows.
Any help would be gratefully appreciated. Many thanks for looking into my problem.
Best Regards





RE: Buckling analysis of a preloaded square plate using FEA (Nastran)
Or if you want to do the FE, i would not model this combination by a linear buckling model, the results you get out are likely to be garbage.
RE: Buckling analysis of a preloaded square plate using FEA (Nastran)
or if your design is intended to be shear resistant (non-buckling) (also = heavier) then Bruhn chapter C10 would answer.