Average normal stress on the contact surfaces of mating surfaces.
Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards
A bearing stress is the normal stress on the contact surfaces of mating surfaces. It is averaged over the total contact area and is calculated using the classical equation for normal stress (S = F/A). An example of a bearing stress is the contact stress between the dogs and the loading shoulder of a dog coupling.
Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards