An investigation to determine the feasibility of using acoustic emission to detect and locate fatigue cracking in welded tubular joints is in progress.Tests have been carried out on T joints in air under laboratory conditions employing both constant and random amplitude loading.In addition, a test rig has been constructed which enables T joints to be fatigued underwater by using the random amplitude loading of wave action.Fatigue cracking has been detected prior to catastrophic failure in both air and marine environmentL
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Webborn et al. (2024) studied this question.
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