Bending stress — where it appears
Named by 2 essays across 2 fields — each of them below, with the objects they name alongside it.
The load put on backwards
Every other structure in this collection waits for its load and then resists it. A prestressed one is given a load first — chosen, permanent, and pointing the wrong way — so that when the real one arrives the two nearly cancel and the material never has to do the thing it is bad at.
Loaded straight down, and it moves sideways
Every section this collection has drawn had an axis of symmetry, and that symmetry has been doing silent work. Take it away and a vertical load produces a neutral axis that is not horizontal, a deflection that is not vertical, and on one ordinary section a sideways movement larger than the downward one.
Named alongside it
The objects these essays reach for when they reach for this one.
Biaxial bendingCrackingKernLoad balancingNeutral axisPrestressPrestress lossesPrincipal axesProduct of inertiaSecond momentShear centreSuperposition