Experimental determination of the fatigue life of modified threaded pipe couplings Ghent University
To assemble pipelines and tubular structures, threaded couplings can be used. In service these couplings are often subjected to dynamic loads. To maintain a secure connection, they are generally preloaded. The combination of preload and external dynamic loads results in a multiaxial stress distribution over the connection, where the coupling’s threads act as stress raisers, initiating fatigue cracks. The fatigue life of the connection depends on ...