... Wind and Irregular Waves on the Motions and Fatigue Performance of a Steel Floating Offshore Wind Turbine Chaoshuai Han, Kun Li, Lixin Xu, Xiu Li, Xiaosen Xu College of Ocean engineering, Jiangsu University of Science and Technology Zhenjiang, Jiangsu, PR China Corresponding author ABSTRACT This paper...

... heat treatment (PWHT) is an active way to release the high tensile RS in welded joints and improve their fatigue performance (Ninh and Wahab, 1995). However, the benefit to be obtained by this process is related to the stress relief and the stress ratio (R) of the external load (Maddox, 1991...

... ABSTRACT In order to investigate the tensile fatigue performance of fiber reinforced thermoplastic pipe (FRTP), initially, a three-dimensional finite element model was generated, followed by the validation of the results using an FRTP experiment. The model utilized user-defined mechanical...

... ABSTRACT Pipe ends machining (counter-bore) is one of the practical approaches for improving the fatigue performance of a welding pipe. This approach makes the pipe end dimension within the range of the target internal diameter (ID) and wall thickness (WT), in order to reduce the ID stress...

... cable subsea system load case sustainability wind energy hang-off position social responsibility configuration sustainable development export cable pontoon bottom deck box fatigue sea state multi-wave configuration fatigue performance tension response fatigue estimation dynamic...

... extend the serviceable life of the entire structure. Improved weld fatigue performance may be possible in some situations by controlling the weld profile through the welding procedure and/or designing the structure to position welds at lowerstressed locations [Kirkhope, Bell, Caron and Basu, 1996...

... applications due to its attractive mechanical characteristic including lower stiffness, high strength and fatigue performance and high resistance to corrosive fluids. Industry has successfully used this technology in approximately fifty SCR applications as described in the vendor Project Database (2016). Large...

...) 5 102 Abstract The objective of the present research work is focused on evaluating the fatigue performance of UOE-SAWL, used for large diameter pipelines, risers, conductor or large OD casings. In addition, the results obtained from full-scale fatigue tests were compared...

... Abstract In the present study, the fatigue performance of the welded joint made by CO 2 gas shielded welding with different gap sizes is investigated to obtain one of the supporting materials to modify the construction quality standards. Allowable limits on the gap size of welded joints...

... of compressive cycles in load sequences. The results of three sets of fatigue testing are presented and conclusions are drawn. materials and corrosion application marine structure lloyd fatigue performance improvement factor fatigue lives riser corrosion polezhayeva fatigue strength specimen...

... estimation of fatigue life for these interface structures is of uttermost importance. On the other hand, at the design and approval stage, the evaluation of fatigue performance is based on assumptions regarding fabrication quality. Most shipbuilding standards include limits on fabrication tolerances...

... steel catenary riser (SCR) service. scr fatigue strength offshore pipeline pipe tkaczyk thickness piping simulation technip transition overlay weld weld upstream oil & gas proceedings piping design alloy 625 clad overlay weld fatigue performance midstream oil & gas...

... The fatigue performance of components in substructures of offshore wind turbine generators is decisive for the design. Current standardised fatigue assessment approaches neglect load history dependant material behaviour and estimate a linear dependence between stresses and strains. The present...

... of Technology, Urmia, Iran ABSTRACT Recent publications believe that sophisticated non-linear hysteretic seabed interaction models can provide a consistent way of trench modeling beneath the riser to study its impact on fatigue performance of steel catenary risers, a question with diverging answers...

... outlines the Ship Right FDA ICE procedure including the determination of trading routes in ice regions, ice loads and impact frequencies, structural stresses, fatigue performance at low temperatures, fatigue damage and acceptance criteria. The paper provides an overview of the assessment methodology...

... Some Considerations on Fatigue Behavior of Metals: Implications on Fatigue Life Assessments Tawfik M. Ahmed Wood Group Integrity Management Houston, TX, USA ABSTRACT Fatigue performance is a serious concern for welded joints of risers and subsea flowlines used for deepwater oil and gas...

... is placed in position and the annulus between foundation pile and leg is grouted. Separated foundation and installation works are advantageous regarding installation time and weather conditions. offshore wind energy converter eccentricity fatigue performance specimen subsea system stress...

... The present work proposes to evaluate the actual roughness impact of machined pipe body outer surfaces on fatigue performance. For this aim, a testing program has been defined comparing the fatigue performance of machined surfaces on high-strength steel pipes. Eight full scale fatigue tests have...

... with chamfering or grinding. Edge treatment makes the painting easily and enhances the fatigue performance besides. weld improvement residual stress fca fatigue crack weld toe steel plate specimen eh40-tm steel plate welding condition fcaw test specimen mean 2 welding process butt joint...

... high quality welding to be undertaken. It is then transited offshore and installed. installation method proceedings offshore pipeline resistance installation process ovality technip wall thickness guidance plastic deformation diameter limit state requirement fatigue performance...