I - the second moment of area about the neutral axis x.

Comparatively little material is needed in the area close to the neutral axis.

There are no internal forces at the neutral axis of the beam.

Therefore the first moment of the cross section about its neutral axis must be zero.

All four of these leave the neutral axis alone.

Note that the neutral axis does not change in length when under bending.

The locus of these points is the neutral axis.

Therefore the neutral axis lies on the centroid of the cross section.

Here, is the distance from the neutral axis to a point of interest; and is the bending moment.

It may seem counterintuitive at first, but this is because there are no bending stresses in the neutral axis.

Plastic neutral axis, an engineering value for plastic material.

As the joint angle moved increasingly away from the neutral axis, the magnitude of the of the moment arms also increased.

The length of a fiber with a radial distance, e, below the neutral axis is .

Arches also have a neutral axis.

A beam under bending sees high stresses along the axial fibers that are farthest from the neutral axis.

Simple bending behavior in homogenous beams suggests ε increases with distance from the neutral axis (z).

Denoting as the maximum strain in the beam (at a distance c from the neutral axis), it becomes clear that:

Since y denotes the distance from the neutral axis to any point on the face, it is the only variable that changes with respect to dA.

When a limb is rounded, as in a longbow, some material "sticks out" farther from the neutral axis, and thus is put under greater stress.

This is simply the projection of a point onto the neutral axis - the vertical height of a point in our tilted cube.

Fullers remove material from near this neutral axis, which is closer to the blade's spine if only one edge is sharpened (see photo above).

In the elastic region of the cross-section, the stress distribution varies linearly from the neutral axis to the beginning of the yielded area.

A force is applied along a neutral axis (y) and the charges are generated along the (x) direction, perpendicular to the line of force.

The length of the neutral axis in the figure, Bending of an Euler-Bernoulli beam, is .

The plastic section modulus depends on the location of the plastic neutral axis (PNA).