Transformed section — where it appears
Named by 2 essays across one field — each of them below, with the objects they name alongside it.
When half the section has given up
Bending theory puts the neutral axis through the centroid. That is a consequence, not a rule — and when the tension side cracks, the same reasoning moves the axis somewhere else entirely.
A section made of two materials, one of them pretended away
Multiplying a material's width by the ratio of the moduli produces a fictitious section of one material with the right neutral axis and the right forces. It is not a trick — it is compatibility and Hooke's law written down — and it says a stiff material takes what its modulus asks for.
Named alongside it
The objects these essays reach for when they reach for this one.
Cracked sectionModular ratioNeutral axisSecond moment of areaCentroidComposite actionCreepElastic modulusFirst moment of areaLever armNo tension materialPlane sections