# Can buckling of wing skin panels occur without external compressive loads?

State whether True or False: In general, the buckling of thin and slender structures occurs under applied axial compressive stresses. In the case of wing skin panels, they can fail in buckling even if no external compressive loads are applied.

• You might find this interesting. Aug 21 at 7:37

2. Shear. Wings not only bend upwards, but twist as well. Due to the constant $$C_M$$ of asymmetrical profile wings, the wing tip wants to twist to a higher AoA, causing shear in all the wing panels. If the shear stresses exceed the dimensional/elastic buckling dimensions of the wing plate, it will deform in a wavy pattern, which is also a form of buckling.