Definition - What does Bending Strain mean?
Bending strain refers to the change in length of a structural element as a result of bending that occurs due to stress. Strain caused by bending brings on stress, which is a major factor on the rate of corrosion and reduces the material's durability.
Corrosionpedia explains Bending Strain
Bending strain is characterized by the elastic limit not even close to being exceeded, and is same in compression and tension. At the point at which an object is subjected to a force couple acting on a plane passing through an axis, the object in question deforms but does not yield.