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Keywords: strength
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Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-453
... of hydrogen damage and it effects to mechanical properties are presented. Hydrogen enhanced fatigue mechanism is clearly presented and related testing methods are introduced. Recent investigations of pipeline steels reveal that 67.7% reduction of fatigue strength due to increment of hydrogen pressure...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-474
... of type A, B and C. This article publishes results on the mechanical-technological properties, the assembly behaviour and the load-bearing behaviour under static and fatigue load for non-preloaded Lockstud systems of nominal sizes M16 and M20 (strength grade 10.9). INTRODUCTION Although high-quality...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-495
... in the weld metal of the SUS316L was studied to qualify the changes in the brittle areas according to the hydrogen content and the addition of pre-strain. The loss of ductility and reduction of strengths were observed as the brittle area decreased due to the combination of internal and external hydrogen...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-500
... tank heat ingress thermal resistance model insulation equivalent von mise climate change transfer coefficient igf code strength upstream oil & gas coefficient saddle support liquefied hydrogen tank eon kim Proceedings of the Thirty-third (2023) International Ocean and Polar...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-561
... government auxetic layer application strength magnitude achut bifurcation auxetic material international ocean galletly poisson dome steel torisphere proceedings configuration torisphere base material negative poisson sensitivity Proceedings of the Thirty-third (2023) International Ocean...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-562
... ABSTRACT In recent years, the local structural damages on forward structures of Container ships have been reported by accidents. During the initial design stage, global direct strength analyses are generally performed for evaluation of yield and buckling strength using net dimensions...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-563
... ABSTRACT In this paper, the research is based on 158 KDWT Crude oil tanker project. The longitudinal bulkheads with vent opening of the cargo pump compartment after cargo compartment is designed and the structure strength is analyzed. For the structure in way of opening, multi structural...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-194
... ABSTRACT Changes in the physical state of fluid caused by the temperature in saturated soil is an important thermodynamic phenomenon affecting soil and shallow hydrate reservoirs. During the fluid-soil interaction, once the shale formation is flooded, the compressive strength of the mud-shale...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-200
... to protect pipelines against large deformations. This kind of pre-excavated material usually gets highly remolded and becomes considerably softer than the native seabed soil. The shear strength difference between the backfilling and seabed soil can result in the pipeline-backfill-trench interaction during...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-128
... for appropriate technology assurance is identified. Descriptions of the historical development to present day platform design practice and alternative technologies are discussed in the following areas: design and analysis, tubular joints, structural framing, frame behavior, fatigue strength, seismicity...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-150
... position and stability are calculated and analyzed respectively on the two scenarios, and then the preferred preliminary scenario is selected. Based on the selected scenario, the dock support reaction force and the local strength of the structure ring are further analyzed by finite element analysis method...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-151
... ABSTRACT In recent years several incidents related to failures of high strength mooring chains used in mobile offshore units mooring systems have been reported. Investigations of some of these incidents have been carried out by, or on behalf of, the chain owner, the rig owner or the operator...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-205
... the structural integrity of subsea pipelines. Pipelines are buried below the deepest potential gouge depth for physical protection. However, due to the shear strength of the soil, the subgouge soil displacement may significantly extended deep through the soil. Determining the optimum burial depth for protection...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-214
... pressure; however, cold forming has some unfavourable consequences as well. The expansion step will increase the material's tensile strength in the direction of applied expansion (the circumferential direction). Unfortunately, this diminishes the associated compressive strength because of the Bauschinger...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-277
... government canada government ice load full-scale condition similarity ice basin ice pool europe government experiment interaction strength thickness destruction sub-sea system model hummock hummock formation sp 38 consolidated layer temperature regime Proceedings of the Thirty-third...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-285
... ABSTRACT Azimuth propulsors are widely used as main propulsion unit on icebreakers and ice-going ships due to high maneuverability and good performance on ice management. Strength of pod, including strut, of ice-classed azimuth propulsors shall be specially considered since they are exposed...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-295
.... europe government resistance level ice finite element method zhipeng wang ice block cohesive element ice element ship modeling & simulation ice sheet resistance prediction numerical model calculation proceedings ice resistance strength buoyancy ice resistance prediction engineering...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-002
... component and uses high-strength ceramics as the wall material. The tests found that HSA has a wide application temperature range and high resistance, and its application in cement meets the industry standard with no significant effect on cement density, settlement stability, consistency, or rheological...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-011
... > 0.05 g/cm 3 ), large water loss (> 50 mL/30min), and slow development of top strength (72h compressive strength < 3.5 MPa). In order to solve the sealing problem of long open hole section, a 1.20 g/cm 3 low friction and ultra-low density cement slurry system was formed by developing...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-015
.... By optimizing the monomer ratio, the water loss agent ZYJ-1, and the retarder ZYH-1 were prepared. The elastic agent, toughening agent, and expansion agent are optimized, and the compatibility is evaluated to form a high-strength and elastic cement slurry system. For this cement slurry system, the thickening...

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