bending moment

noun

, Physics.

1. the algebraic sum of the moments about the neutral axis of any cross section of a beam.

bending moment

noun

1. the algebraic sum of all the moments to one side of a cross-section of a beam or other structural support

Word History and Origins

Origin of bending moment¹

First recorded in 1855–60

Example Sentences

There’s another way her shoe could break, and this is due to the compressive stress due to the bending moment applied to her heel every time she walks.

From Forbes

There will be an unknown bending moment M0 at B, and the system3 of fictitious loads is 1⁄12wAB�/EI at G the middle point of AB, 1⁄12wBC� / EI at G′ the middle point of BC, −�M0AB / EI at g and −�M0BC / EI at g′, where g and g′ are the points of trisection nearer to B of the spans AB, BC.

From Project Gutenberg

As regards the strain in the beam, the longitudinal and lateral extensions and contractions depend on the bending moment in the same way as in the simpler problem; but, the bending moment being variable, the anticlastic curvature produced is also variable.

From Project Gutenberg

The deflection of the beam is determined from the equation curvature of central line = bending moment � flexural rigidity, and the special conditions at the supported end; there is no alteration of this statement on account of the shears.

From Project Gutenberg

When the ordinary relation between the curvature and the bending moment is applied to the calculation of the deflection of continuous beams it must not be forgotten that a correction of the kind just mentioned may possibly be requisite.

From Project Gutenberg