SAE data file format for exchanging controlled periodic overload data. The object of this SAE Standard is to provide a simple, common methodology for exchanging the data from periodic overload fatigue tests. These tests consist of a single large fatigue cycle followed by a larger number of smaller cycles. The overloads are fully reversed fatigue cycles while the smaller cycles share a common mean and amplitude.
SAE J2649-2004 Referenced Document
ASTM E606-04 Standard Practice for Strain-Controlled Fatigue Testing*， 2024-04-18 Update