Senior principal scientific officer, National Engineering Laboratory, East Kilbride, Glasgow,
Shell professor of mechanical engineering, University College London, London WC 1,
Pages: 22 Published: Jan 1989
Fixed tubular steel platforms were first installed in the North Sea in 1966. They are subjected to significant fatigue loads due to wave action, and consequently a large number of relevant fatigue tests have been carried out on representative tubular joints. In 1979, the Wave Action Standard History (WASH) Working Group was formed to develop standard load spectra for fatigue testing relevant to offshore structures. This paper reviews some of the work that has been carried out in support of the Working Group, but it is not an official Working Group document. It is concluded that construction of realistic load spectra representative of wave loading on tubular structures in the North Sea is feasible at the current state of the art. The basic steps needed for implementation of a tentative standard load spectrum are described.
fatigue testing, load spectra, offshore structures, welded joints, corrosion fatigue, wave loading, hydrodynamic theory, fatigue (materials), testing
Paper ID: STP10351S