A steady pull-out at the wing’s largest permitted positive angle of attack gives the positive high-angle-of-attack condition. In which labelled wing region does maximum tension occur?
Positive lift bends the wing upward, putting the lower skin in tension and upper skin in compression. At the positive high-angle-of-attack design condition, the combined bending/torsional loading in the illustrated box gives the critical lower rear region III, C. The upper labels cannot carry the maximum positive bending tension; the high-angle condition distinguishes the rear lower location from the other lower corner.
More Flight vehicle structures: torsion, bending and shear of thin-walled sections, loads on aircraft questions
GATE 2020 AE Q34– The shown closed thin-walled rectangular beam has constant thickness 2 mm, dimensions 400…
GATE 2019 AE Q23– When a transverse load on a beam acts through its shear centre,
GATE 2019 AE Q63– A thin closed single-cell section consists of a semicircle of radius 50 mm and the…
GATE 2024 AE Q33– An airplane experiences a net vertical ground reaction of 15000 N during landing. The…
GATE 2024 AE Q54– The cross section of a thin-walled beam with uniform wall thickness t, shown in the…
GATE 2025 AE Q60– Two designs A and B, shown in the figure, are proposed for a thin-walled closed section…
