The static and fatigue performance of welded joints for offshore platforms
The use of newly developed thermal-mechanical controlled process steels (TMCP) in offshore platforms can offer significant advantages particularly with regard to welding. However, the fracture and fatigue performance of joints fabricated from these steels were not well established until recently and more realistic testing in seawater has been extremely limited. This project was devised to provide detailed information on the performance of welded joints made of three steels, by carrying out tests in seawater to duplicate operating conditions. Fatigue tests were carried out on plate-to-plate and tubular full scale joints and static toughness was assessed by wide plate tests. The steels considered were the traditional Normalised Fe510D, a controlled rolled steel and a controlled rolled and accelerated cooled steel. A large database containing information on the performance of full scale welds in seawater with cathodic protection has been derived from this programme. It has been demonstrated that the effectiveness of this type of protection depends upon the applied load level.
Bibliographic Reference: EUR 13636 IT (1992) 133 pp., FS, ECU 11.25
ISBN: ISBN 92-826-3258-X
Record Number: 199210111 / Last updated on: 1994-12-02
Original language: it
Available languages: it