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Predicting failure ...
Predicting failure of dynamic subsea cables by electrical insulation breakdown due to water treeing
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- Li, Zhiyuan, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ringsberg, Jonas, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Serdyuk, Yuriy, 1963 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Daniel, 1993 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johnson, Erland, 1962 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,RISE Research Institutes of Sweden
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Andersson, Christian (author)
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(creator_code:org_t)
- London : CRC Press, 2023
- 2023
- English.
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In: Advances in the Analysis and Design of Marine Structures - Proceedings of the 9th International Conference on Marine Structures (MARSTRUCT 2023). - London : CRC Press. - 9781032506364 ; , s. 477-484
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https://doi.org/10.1...
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Abstract
Subject headings
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- The study presents numerical models and a methodology that can be used to study and simulate the growth of water trees in the insulation materials under a combination of cyclic electrical stresses and mechanical stresses (cable motions-induced). A fracture-mechanics-based model is presented that combines the effect of these stresses to determine the growth rate of water tree defects and the service life of the insulation materials around a conductor. A study case with two dynamic power cables installed between a wave energy converter and a hub is used to demonstrate the methodology for different sea state conditions. The results show that the cable fails significantly earlier when motion-induced mechanical stresses and electrical stresses are taken into account compared to when only the mechanical stresses were considered. A sensitivity analysis for selected material parameters is also presented to highlight the factors that significantly influence the cable service life prediction.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Marin teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Marine Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- wave energy
- dynamic cables
- fatigue
- cable dynamics
- water tree
Publication and Content Type
- kon (subject category)
- ref (subject category)
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