Buckling modes of a thin-walled transversely loaded I-beam from ANSYS (a) and from GBT (b)
From the same paper as the previous 2 images
Fig. 18. L = 400 cm two-span beam with top and bottom loading: critical buckling mode shapes yielded by (a) Ansys and (b) “exact” GBT-based formulation, and (c) modal amplitude functions.