The [[Principle of Superposition|principle of superposition]] states that:
“The net result due to multiple causes is equal to the sum of individual responses due to each individual cause.”
We can apply the principle of superposition to [[Stress|stress]], expressed with the following equation:
$\sigma_x=\sigma_{axial, x}+\sigma_{bending, x}+\sigma_{torsion, x}$
Eccentric loading occurs when a tensile or compressive [[Force|force]] is applied at a [[Distance|distance]] from the line of action that would transmit the force through the object. Under eccentric loading, stresses will occur due to both tension/compression forces and bending [[Moment|moment]]. The principle of superposition can therefore be applied for a dynamically equivalent section, and therefore the stress distribution can be found.
![[general_bend.png|center|400]]
![[eccentric.png]]