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Keywords: Steel
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Proceedings Papers

Proc. ASME. OMAE2021, Volume 3: Materials Technology, V003T03A009, June 21–30, 2021
Paper No: OMAE2021-62443
... Proceedings of the ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering OMAE2021 June 21-30, 2021, Virtual, Online OMAE2021-62443 TRANSITIONS IN CHARPY ENERGY AND SPLITTING FOR X80 PIPE STEEL William Mohr, Neal Birchfield, and Tom McGaughy Edison Welding Institute...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A032, June 9–14, 2019
Paper No: OMAE2019-95368
... Mekelweg 2 2628 CD Delft, The Netherlands ABSTRACT Measurement of the fracture toughness of steel is important for the assurance of the safety of ships and offshore structures, especially when these structures are made of thick sections and/ or applied in cold environments. One key factor that will affect...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A015, June 9–14, 2019
Paper No: OMAE2019-95907
... of surface and thickness are produced from 3D laser scan of real corroded mild steel specimens from a 30 year old ship using Fast Fourier Transform (FFT). The frequency distribution describes the spatial variability, wherefrom the autocorrelation function (ACF) is deduced. A log-log fit is made to the power...
Proceedings Papers

Proc. ASME. OMAE2012, Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium, 29-41, July 1–6, 2012
Paper No: OMAE2012-83054
... In the fatigue design of steel catenary risers there are concerns regarding the fatigue damage to girth welds from low stresses, below the constant amplitude fatigue limit, in the loading spectrum and the validity of Miner’s cumulative damage rule. In both cases there is increasing evidence...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 91-98, June 6–11, 2010
Paper No: OMAE2010-20568
... stewardship. Therefore, advances in high strength steels such as X100 and X120 have been pursued by several companies. This paper presents an alternative solution namely FAST-Pipe™ (Fiber Augmented Steel Technology - Pipe). The FAST-Pipe™ Concept involves wrapping a conventional strength steel pipe (X70...
Proceedings Papers

Proc. ASME. OMAE2008, Volume 5: Materials Technology; CFD and VIV, 87-95, June 15–20, 2008
Paper No: OMAE2008-57104
... were performed on strip specimens cut from girth-welded steel pipes under constant and variable amplitude loading to investigate this issue. The test results were assessed on the basis of Miner’s rule used in conjunction with various methods of extrapolating the S-N curve beyond the CAFL to establish...
Proceedings Papers

Proc. ASME. OMAE2008, Volume 5: Materials Technology; CFD and VIV, 75-85, June 15–20, 2008
Paper No: OMAE2008-57103
... 24 07 2009 As part of a study of fatigue in girth-welded steel pipes, tests were performed under constant amplitude loading on both full-scale pipes and strip specimens cut from such pipes. Significant differences were found in their high-cycle fatigue lives, which extended to around...
Proceedings Papers

Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 535-542, June 23–28, 2002
Paper No: OMAE2002-28607
... and control software. The results of underwater cuts on steel plate using these systems are discussed, with applicability to offshore decommissioning. Ongoing work using other novel thermal cutting processes is also described. underwater thermal cutting steel decommissioning Proceedings of OMAE...
Proceedings Papers

Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 103-112, June 12–17, 2005
Paper No: OMAE2005-67254
..., the influence of steel design on the weld metal property is introduced, by exemplifying the SAW material design of line pipes. Microalloy TMCP steel carbide nitride HAZ toughness HAZ CTOD LBZ LHZ precipitate TMCP. Secondly precipitation, growth, and dissolution kinetics of microalloying carbo...
Proceedings Papers

Proc. ASME. OMAE2006, Volume 3: Safety and Reliability; Materials Technology; Douglas Faulkner Symposium on Reliability and Ultimate Strength of Marine Structures, 537-550, June 4–9, 2006
Paper No: OMAE2006-92314
... 07 10 2008 This paper presents a critical review of current design methods, including their background and relevant experimental data, for assessing the fatigue performance of steel fillet welds with respect to failure in the weld throat. The main focus is on fillet or partial...
Proceedings Papers

Proc. ASME. OMAE2006, Volume 3: Safety and Reliability; Materials Technology; Douglas Faulkner Symposium on Reliability and Ultimate Strength of Marine Structures, 551-563, June 4–9, 2006
Paper No: OMAE2006-92315
... 07 10 2008 Increasing deep-water oil and gas recovery has highlighted the need for high integrity, high fatigue performance girth welds in steel catenary riser systems. Such systems include girth welds made from one side. However, the widely used fatigue design classification, UK Class...