Structural integrity is assured via static strength and service life (fracture control) requirements. The mitigation of catastrophic failures in metallic materials resulting from fatigue damage accumulation during the useful life of a structure is one of the primary functions of fracture control. This Webcast provides a cursory overview of metal fatigue which includes the basic elements of stress-life (S-N) fatigue, strain-life, and linear elastic fracture mechanics. Details regarding the micro and macro mechanics associated with metal fatigue crack nucleation, initiation, and propagation are also addressed.