Concept
Buckled mode shape
2 essays name this object, across one field. What follows is each of them, and the objects they name alongside it.
The ends decide the length that matters
Four columns of identical height and section, buckling at loads sixteen times apart. Nothing differs but what is holding the two ends.
The brace that need not be strong
A brace holding a column at mid-height carries almost no force. What it has to be is stiff — and the stiffness required is exact, large, and reached at a knee past which more buys nothing at all.
Named alongside it
The objects these essays reach for when they reach for this one.
BracingEffective lengthCritical loadEigenvalueEnd restraintImperfectionLateral restraintSlendernessStiffnessSway frame