Sentient Science's modeling technology is accurate because it is more detailed. Traditional approaches (such as AGMA/ISO standards) use a litany of empirically derived 'life modification' factors to account for the various conditions and parameters that influence the fatigue process. Most of these factors simply modify the life cycle calculation by a multiplier.
Sentient Science's approach is to look at the fatigue process at a more fundamental level. One of our primary tenets is to limit the number of assumptions required during the simulation process, i.e. wherever possible the factors influencing the fatigue behavior are explicitly modeled. As a consequence, empirical data is unnecessary and no assumptions as to the failure mode are required - the same model is capable of simulating contact fatigue (pitting, spalling), bending fatigue, or fretting fatigue. The failure mode is simply a natural outcome of the applied stresses.
At Sentient Science we continue to tune our modeling software by using updated and refined material properties, micro-structures, and surface characteristics, including lubrication details, to ensure we continue to represent the best in prognostic modeling.