Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"flexible pipe"”.
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The peripheral movement of soil around a buried flexible pipe
Digitized by Kansas Correctional Industries
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Life Prediction of Composite Armor in an Unbonded Flexible Pipe
… replacement of steel helical tendons in unbonded flexible pipes utilized by the offshore oil industry. Higher strength to weight ratios and increased corrosion resistance are the primary advantages of a composite material for this application. The current study focuses on the life prediction of a …
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Formulações semi-empíricas para o colapso hidrostático bi-simétrico de dutos flexíveis
Flexible pipes are structures composed of metallic and polymeric layers that allow resistance and sealing without compromise the flexibility needed to its operation. Among its layers, the interlocked carcass and the pressure armor are responsible for resisting to radial loads such as the …
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Análise de fadiga nas armaduras de tração de dutos flexíveis considerando efeitos da corrosão marinha
… show that the most frequent damage type in flexible pipe is the outer sheath damage. Typical consequences are sheath rupture, annulus flooding and tensile armours corrosion by seawater. Integrity assessment in this type of occurrence is usually limited to a reassessment of the fatigue life …
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Método de avaliação da vida à fadiga de risers flexíveis através do monitoramento das deformações dos arames da armadura de tração
Flexible risers are critical elements in a subsea production system. Due to the complexity of these structures, a number of factors influence the evaluation of their integrity, so the application of monitoring systems is essential to ensure operational safety and reduce design conservatism. The …
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An Innovative Design for a Separate Sewer System
… required a new configuration to setup the two pipes in one trench, the storm pipe over the sanitary pipe. The behaviours of these two flexible pipes were tested using a 3D finite element (FE) model, validated against experimental data from a laboratory investigation. A modified Drucker–Prager …
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Drag amplification and fatigue damage in vortex-induced vibrations
… in measuring local drag coefficients on long flexible cylinders, excited by VIV. At best engineers are forced to use spatially averaged drag coefficients. This is especially inaccurate when the pipe and flow properties change, either due to partial coverage with VIV mitigation devices, such as …
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Investigation of Culvert Joints Employing Large Scale Tests and Numerical Simulations
The performance of joints in buried gravity flow pipelines are important since failure of these elements can affect the structural capacity of soil-pipe systems and reduce their longevity. Currently, there are no clear guidelines to design joints for gravity flow pipelines and therefore their …