State of the art and knowledge gaps on modelling structures in cold regions
The environment in cold regions undergoes significant changes that manifest in rising temperatures and melting ice caps. These processes allow access to new areas for shipping and the installation of structures. However, the occurring changes are not solely a reduction of ice, but also waves increas...
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Online Access: | http://hdl.handle.net/11420/4101 |
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fttuhamburg:oai:tore.tuhh.de:11420/4101 2023-08-20T04:02:43+02:00 State of the art and knowledge gaps on modelling structures in cold regions Bock und Polach, Rüdiger Ulrich Franz von Klein, Marco Kubiczek, Jan Manuel Kellner, Leon Braun, Moritz Herrnring, Hauke 2019-06 http://hdl.handle.net/11420/4101 en eng ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 978-079185887-5 International Conference on Offshore Mechanics and Arctic Engineering (OMAE 2019) http://hdl.handle.net/11420/4101 2-s2.0-85075912804 Conference Paper Other 2019 fttuhamburg 2023-07-28T09:21:51Z The environment in cold regions undergoes significant changes that manifest in rising temperatures and melting ice caps. These processes allow access to new areas for shipping and the installation of structures. However, the occurring changes are not solely a reduction of ice, but also waves increasingly occur in cold regions contributing to ice break up in the Marginal Ice Zone (MIZ) and the transport of ice towards the open sea. Much work has been done to combine the single topic disciplines: wave-hydrodynamics, ice mechanics and structure mechanics to wave-structure (WSI) and ice-structure interaction (ISI). The changing environment in cold regions and the increased wave activity form a new combined discipline: wave-ice-structure interaction (WISI). This paper addresses existing knowledge gaps of the future loading scenario WISI that need to be addressed in engineering to ensure safety for future operations in Polar Regions. The knowledge gaps however, do not only refer to the discipline interfaces, i.e. challenges in combining them, but also to knowledge gaps within them. Wave statistics and the cross-effect between wave and ice are widely unknown which limits the definition of a design wavescenario. Structures in such environments are exposed to subzero temperatures and neither their impact on properties nor on fatigue life is fully understood. While most phenomena of these two disciplines and their implementation into numerical models are established the ice mechanics appear as the weakest link. Ice is a complex material and not all aspects of its mechanical behaviour are understood and if - the implementation into (numerical) models has not been successful yet. Ice pieces that are energetically charged by waves and collide with structures at high velocities and for such high impact loads the governing ice mechanics are hardly covered by the state of the art or not at all. Conference Object Arctic TUHH Open Research (TORE - Technische Universität Hamburg) Isi ENVELOPE(-38.550,-38.550,65.617,65.617) Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology |
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Open Polar |
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TUHH Open Research (TORE - Technische Universität Hamburg) |
op_collection_id |
fttuhamburg |
language |
English |
description |
The environment in cold regions undergoes significant changes that manifest in rising temperatures and melting ice caps. These processes allow access to new areas for shipping and the installation of structures. However, the occurring changes are not solely a reduction of ice, but also waves increasingly occur in cold regions contributing to ice break up in the Marginal Ice Zone (MIZ) and the transport of ice towards the open sea. Much work has been done to combine the single topic disciplines: wave-hydrodynamics, ice mechanics and structure mechanics to wave-structure (WSI) and ice-structure interaction (ISI). The changing environment in cold regions and the increased wave activity form a new combined discipline: wave-ice-structure interaction (WISI). This paper addresses existing knowledge gaps of the future loading scenario WISI that need to be addressed in engineering to ensure safety for future operations in Polar Regions. The knowledge gaps however, do not only refer to the discipline interfaces, i.e. challenges in combining them, but also to knowledge gaps within them. Wave statistics and the cross-effect between wave and ice are widely unknown which limits the definition of a design wavescenario. Structures in such environments are exposed to subzero temperatures and neither their impact on properties nor on fatigue life is fully understood. While most phenomena of these two disciplines and their implementation into numerical models are established the ice mechanics appear as the weakest link. Ice is a complex material and not all aspects of its mechanical behaviour are understood and if - the implementation into (numerical) models has not been successful yet. Ice pieces that are energetically charged by waves and collide with structures at high velocities and for such high impact loads the governing ice mechanics are hardly covered by the state of the art or not at all. |
format |
Conference Object |
author |
Bock und Polach, Rüdiger Ulrich Franz von Klein, Marco Kubiczek, Jan Manuel Kellner, Leon Braun, Moritz Herrnring, Hauke |
spellingShingle |
Bock und Polach, Rüdiger Ulrich Franz von Klein, Marco Kubiczek, Jan Manuel Kellner, Leon Braun, Moritz Herrnring, Hauke State of the art and knowledge gaps on modelling structures in cold regions |
author_facet |
Bock und Polach, Rüdiger Ulrich Franz von Klein, Marco Kubiczek, Jan Manuel Kellner, Leon Braun, Moritz Herrnring, Hauke |
author_sort |
Bock und Polach, Rüdiger Ulrich Franz von |
title |
State of the art and knowledge gaps on modelling structures in cold regions |
title_short |
State of the art and knowledge gaps on modelling structures in cold regions |
title_full |
State of the art and knowledge gaps on modelling structures in cold regions |
title_fullStr |
State of the art and knowledge gaps on modelling structures in cold regions |
title_full_unstemmed |
State of the art and knowledge gaps on modelling structures in cold regions |
title_sort |
state of the art and knowledge gaps on modelling structures in cold regions |
publishDate |
2019 |
url |
http://hdl.handle.net/11420/4101 |
long_lat |
ENVELOPE(-38.550,-38.550,65.617,65.617) |
geographic |
Isi |
geographic_facet |
Isi |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 978-079185887-5 International Conference on Offshore Mechanics and Arctic Engineering (OMAE 2019) http://hdl.handle.net/11420/4101 2-s2.0-85075912804 |
container_title |
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology |
_version_ |
1774713316179968000 |