Definition of fatigue limit
Fatigue limit refers to the maximum stress value when no stress occurs after infinite stress cycles. It is also called the endurance limit. The fatigue limit of a material is an inherent property of the material, which varies depending on the cyclic characteristics, the form of deformation of the test piece, and the environment in which the material is located, and so on. The measurement requires several smooth small-sized samples to be tested on a dedicated fatigue tester.