Extending the Fatigue Life of Oilfield Drilling Equipment
By Curtiss-Wright Surface TechnologiesThe majority of drill pipe failures occur as a result of metal fatigue. Fatigue fractures propogate as a result of cyclic stresses that are often far lower than the static design stress for the component. The fatigue damage is cumulative and permanent with cracks propogating until the remaining section is unable to withstand the application of a single load.
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