Concept
Section classification — where it appears
2 essays name this object, across 2 fields. What follows is each of them, and the objects they name alongside it.
The plate that ripples, and the width that is left
A wide thin plate in compression buckles at a stress that has nothing to do with the strength of the material. It then goes on carrying load — the middle drops out, and the edges work harder.
The section that cannot reach its own strength
A section classification looks like a table of arbitrary numbers. Set a plate's buckling stress equal to the yield stress and the numbers fall out of a formula written three phases ago — larger than the quoted ones by a constant factor, at every grade.
Named alongside it
The objects these essays reach for when they reach for this one.
Effective widthDuctilityImperfectionLocal bucklingMoment curvaturePlate bucklingPlate slendernessPost bucklingResidual stressRotation capacitySlendernessWidth to thickness