Wing Skin Buckling on FEMAP Model
Wing Skin Buckling on FEMAP Model
(OP)
I'm working on a T-34 wing model after an in flight failure. At ultimate flight loads the upper wing skin is buckled so I used CShear elements that will not take normal force and used rod elements to model the effective skin. Even using permanent constraits 45&6 and Auto SPC on, the deformed output veiw shows unrealistic out of plane deformation. I'm loading the model with pressure on the skin for the airloads. I have three skin elements between each rib. I have rod elements around every CShear element. How can I get the wing skin to take the shear loads but no normal loads?





RE: Wing Skin Buckling on FEMAP Model
Another approach may be in order. Change your CShear elements to Plates (Shell64 in ANSYS). Change your Rods to Beams. Then try doing a buckling analysis. A buckling analysis requires a mesh finer than that required for a static run, so you may need to remesh.
Good luck.