Concept
Brittle fracture — where it appears
2 essays name this object, across one field. What follows is each of them, and the objects they name alongside it.
The property that appears in none of the equations
Ductility is in no design formula on this site. Every method on this site depends on it — and a brittle structure does not merely fail early, it makes the analysis wrong.
The flaw that sets the strength
A member with a crack twenty millimetres long fails at its yield stress. Make the steel stronger and the crack that does it gets shorter, so the same flaw that was harmless in the weaker grade decides the stronger one.
Named alongside it
The objects these essays reach for when they reach for this one.
DuctilityCritical crackFractureFracture toughnessGriffithLoad pathLower bound theoremMoment redistributionPlastic hingeRobustnessRotation capacityStress concentration