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Keywords: imperfection
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-161
... to get valuable interpretation such as the one described by Harrison et al. (2016). Some test programmes focused on local feature that could initiate a wrinkle such as a weld (Jones et al., 2021) or a liner imperfection (Pepin et al., 2019). However, to the authors knowledge, there is no MLP bending test...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-163
... and associated significant economical loss. The UHB phenomenon of a pipeline buried in a trench is illustrated in Fig.1. midstream oil & gas piping design criterion imperfection upstream oil & gas resistance upheaval dnv-rp-f110 offshore pipeline mobilization distance uplift mobilization...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-165
... outer pipe interaction model imperfection piping design lateral displacement soil resistance lateral pipe-soil interaction model Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-404
..., cf. (Omajene et al., 2014). specimen evaluation wet welding fatigue testing fatigue strength artificial intelligence welding weld weld quality test data steel probability different water depth background document water depth imperfection category detail category smaw fillet...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-4115
... on fatigue strength. Metallographic and fractographic investigations are carried out on fatigue specimens and compared with the results of the fatigue tests. Additionally, virtual limiting samples can be used to assign a value for fatigue-acceptable imperfections to each component area. Moreover, data from...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2127
... proceedings corrosion inhibition production chemistry midstream oil & gas artic engineering criteria criterion delamination international conference mlp separation pipe karamano liner separation imperfection manufacturing process host pipe Proceedings of the Thirty-first (2021...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-115
... three solid blocks of syntactic foam, is depicted in Fig. 1b. The second type of buoyancy unit is of ‘the-vessel-type’ as depicted in Fig. 1c. As yet this type of buoyancy unit is not readily available due to a number of outstanding issues including the effect of initial geometric imperfections...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-293
... for two nominally identical pairs of perfect cylinders and imperfect cylinders was good. INTRODUCTION Tubular cylinders are commonly used as load bearing structures in major offshore industries. Typical applications can be found when used for driving piles into the seabed. For such applications, one...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-162
... typically have diameter-to-thickness ratios ( D / t ) ranging from 15 to 40. The major parameters that affect the collapse pressure ( P cr ) of pipes are the pipe geometry represented by the value of D / t , the elasticity modulus and yield stress of the material and geometric imperfections, particularly...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-113
... to collapse. Numerical computation of the experiment is then carried out by employing the finite element code of ABAQUS FEA. The imperfection parameters are considered. The numerical investigations successfully replicated the failure shape and the ultimate strength with reasonable accuracy. INTRODUCTION...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-625
... offshore pipeline span length configuration sleeper simulation coefficient natural frequency stress range imperfection compressive axial load amplitude compression ratio tolerance viv displacement midstream oil & gas Advanced Pipeline Crossing Analysis Abdul Rahman El-Chayeb, Don...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-091
... wrinkle criteria piping simulation imperfection dataset straightener displacement input parameter liner thickness failure mode machine learning installation artificial intelligence liner imperfection liner Lined Pipe Reeling Mechanics Design of Experiment & Machine Learning Model Chen...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-524
... ABSTRACT Fiber reinforced thermoplastic pipes (RTPs) consisting of inner liner, middle reinforced layer and outer cover are gradually applied in marine industry to transport high temperature and high pressure oil and gas resources. Due to uneven seabed and human factors, initial imperfections...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-743
... Huang (2010) indicated that, the ultimate strength is almost the same despite of the pit shape of cylinder, semi sphere or circular cone, if the material loss volume is the same. cross section geometrical imperfection pit corroded plate ultimate strength flowline corrosion imperfection...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-395
... compression riser corrosion corrosion damage ultimate strength finite element analysis imperfection materials and corrosion initial geometric imperfection pipeline corrosion corrosion stiffened plate slenderness ratio thickness geometric imperfection constraint displacement distribution...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-461
... of delamination growth analysis. The energy release rate calculation was formulated for composite delaminated tubular cross sections and specialized to a finite element model for delamination buckling and growth analysis of long laminated composite tubes taking into account initial geometric imperfections, large...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-488
... ABSTRACT The effect of initial imperfections on the pipeline global buckling is the theoretical basis of the global buckling stability analysis and buckling control of the submarine pipeline. The pipeline length for the analysis has a significant effect on the global buckling. According...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-506
... & gas weld crack target curve crack initiation zone stress range uoe sawl pipe rodrigo galve pipe tolerance application imperfection lucca fatigue performance welding sn curve offshore pipeline uoe-sawl pipe qualification...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-278
... resistance piping design displacement blanket cover configuration uplift resistance assessment foundation imperfection requirement offshore pipeline piping simulation load factor loose foundation prop height midstream oil & gas curvature prop peak uplift resistance resistance sra...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-362
... analysis strain gage imperfection failure load cylindrical part modeshape 2 longitudinal axis external pressure pressure housing circumferential strain magnitude gage loading node cylinder cross section variation An Experimental and Numerical Study of CFRP Pressure Housings for Deep Sea...

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