Lip — where it appears
Named by 2 essays across 2 fields — each of them below, with the objects they name alongside it.
What is left after it ripples
A thin plate that buckles locally has not failed. It has stopped taking load in its middle and gone on taking it near its edges, so the member is now made of a different section from the one that was drawn — and the new one has its centroid somewhere else, which turns a concentric load into an eccentric one.
The mode between the two that get checked
A thin-walled strut has three ways of buckling and two of them have design rules. The third has a half-wavelength several times the section depth, a shape in which the fold lines themselves move, and an elastic stress that no effective-width calculation can produce.
Named alongside it
The objects these essays reach for when they reach for this one.
Effective widthLocal bucklingPlate bucklingPost bucklingSlendernessCentroidCold formedCold formed sectionDistortional bucklingEccentricityElastic foundationHalf wavelength