Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms
An experimental campaign was carried out in the Aalto ice basin to investigate sea ice ridge interaction with bottom-fixed structures. The campaign covered three different ice sheets and ridges. Punch tests, flexural strength test and compressive strength test were carried out on the model ice. Two...
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ftaaltouniv:oai:aaltodoc.aalto.fi:123456789/111488 2023-05-15T14:22:29+02:00 Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms Jiang, Zongyu Heinonen, Jaakko Tikanmäki, Maria Mikkola, Eeva Perala, Ilkka Shestov, Aleksey Hoyland, Knut Salganik, Evgenii van den Berg, Marnix Li, Hongtao Ervik, Ase Puolakka, Otto Marine Technology VTT Technical Research Centre of Finland University Centre in Svalbard Norwegian University of Science and Technology Delft University of Technology Multiconsult Aalto Ice Tank Department of Mechanical Engineering Aalto-yliopisto Aalto University 2021-06 application/pdf https://aaltodoc.aalto.fi/handle/123456789/111488 en eng International Conference on Port and Ocean Engineering under Arctic Conditions Proceedings of the 26th International Conference on Port and Ocean Engineering under Arctic Conditions Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions Jiang , Z , Heinonen , J , Tikanmäki , M , Mikkola , E , Perala , I , Shestov , A , Hoyland , K , Salganik , E , van den Berg , M , Li , H , Ervik , A & Puolakka , O 2021 , Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms . in Proceedings of the 26th International Conference on Port and Ocean Engineering under Arctic Conditions . Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions , Luleå University of Technology , International Conference on Port and Ocean Engineering under Arctic Conditions , Moscow , Russian Federation , 14/06/2021 . 2077-7841 PURE UUID: c576b57b-f69b-4b07-8331-e1faf463b1b9 PURE ITEMURL: https://research.aalto.fi/en/publications/c576b57b-f69b-4b07-8331-e1faf463b1b9 PURE LINK: https://www.poac.com/PapersOnline.html PURE LINK: http://www.scopus.com/inward/record.url?scp=85124134603&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/76597545/POAC21_031.pdf https://aaltodoc.aalto.fi/handle/123456789/111488 URN:NBN:fi:aalto-2021120810632 openAccess Model test Ice ridge Ice loads Keel failure observation Vertical and conical structures A4 Artikkeli konferenssijulkaisussa publishedVersion 2021 ftaaltouniv 2023-02-01T23:57:53Z An experimental campaign was carried out in the Aalto ice basin to investigate sea ice ridge interaction with bottom-fixed structures. The campaign covered three different ice sheets and ridges. Punch tests, flexural strength test and compressive strength test were carried out on the model ice. Two different structures were tested, one with cylindrical and one with conical waterline (cone angle 75°). A geometric scale-factor of 15 was applied between the model and prototype. The model was pulled through the ridges while measuring the loads. A monitoring system with six cameras was installed to observe the deformation pattern of ice. Two of these cameras were installed above the sea surface and four of them were installed underwater. The failure mode of ridge keel was observed by using underwater cameras, and observations showed that the breaking of keel had a shrinkage-expansion pattern before all freeze bond in front of the structure was broken by the structure. For the consolidated ridge, the cone part of the structure could reduce the ice loads induced by the consolidated layer, but the cone did not effectively influence the loads induced by rubble due to its short length. For the unconsolidated ridge, the cone could reduce the ice loads due to weak confinement of the contacting rubble near water line. Peer reviewed Other/Unknown Material Arctic Sea ice Aalto University Publication Archive (Aaltodoc) |
institution |
Open Polar |
collection |
Aalto University Publication Archive (Aaltodoc) |
op_collection_id |
ftaaltouniv |
language |
English |
topic |
Model test Ice ridge Ice loads Keel failure observation Vertical and conical structures |
spellingShingle |
Model test Ice ridge Ice loads Keel failure observation Vertical and conical structures Jiang, Zongyu Heinonen, Jaakko Tikanmäki, Maria Mikkola, Eeva Perala, Ilkka Shestov, Aleksey Hoyland, Knut Salganik, Evgenii van den Berg, Marnix Li, Hongtao Ervik, Ase Puolakka, Otto Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
topic_facet |
Model test Ice ridge Ice loads Keel failure observation Vertical and conical structures |
description |
An experimental campaign was carried out in the Aalto ice basin to investigate sea ice ridge interaction with bottom-fixed structures. The campaign covered three different ice sheets and ridges. Punch tests, flexural strength test and compressive strength test were carried out on the model ice. Two different structures were tested, one with cylindrical and one with conical waterline (cone angle 75°). A geometric scale-factor of 15 was applied between the model and prototype. The model was pulled through the ridges while measuring the loads. A monitoring system with six cameras was installed to observe the deformation pattern of ice. Two of these cameras were installed above the sea surface and four of them were installed underwater. The failure mode of ridge keel was observed by using underwater cameras, and observations showed that the breaking of keel had a shrinkage-expansion pattern before all freeze bond in front of the structure was broken by the structure. For the consolidated ridge, the cone part of the structure could reduce the ice loads induced by the consolidated layer, but the cone did not effectively influence the loads induced by rubble due to its short length. For the unconsolidated ridge, the cone could reduce the ice loads due to weak confinement of the contacting rubble near water line. Peer reviewed |
author2 |
Marine Technology VTT Technical Research Centre of Finland University Centre in Svalbard Norwegian University of Science and Technology Delft University of Technology Multiconsult Aalto Ice Tank Department of Mechanical Engineering Aalto-yliopisto Aalto University |
format |
Other/Unknown Material |
author |
Jiang, Zongyu Heinonen, Jaakko Tikanmäki, Maria Mikkola, Eeva Perala, Ilkka Shestov, Aleksey Hoyland, Knut Salganik, Evgenii van den Berg, Marnix Li, Hongtao Ervik, Ase Puolakka, Otto |
author_facet |
Jiang, Zongyu Heinonen, Jaakko Tikanmäki, Maria Mikkola, Eeva Perala, Ilkka Shestov, Aleksey Hoyland, Knut Salganik, Evgenii van den Berg, Marnix Li, Hongtao Ervik, Ase Puolakka, Otto |
author_sort |
Jiang, Zongyu |
title |
Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
title_short |
Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
title_full |
Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
title_fullStr |
Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
title_full_unstemmed |
Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms |
title_sort |
scale-model ice ridges and interaction with narrow structures, part 4: global loads and failure mechanisms |
publishDate |
2021 |
url |
https://aaltodoc.aalto.fi/handle/123456789/111488 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
International Conference on Port and Ocean Engineering under Arctic Conditions Proceedings of the 26th International Conference on Port and Ocean Engineering under Arctic Conditions Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions Jiang , Z , Heinonen , J , Tikanmäki , M , Mikkola , E , Perala , I , Shestov , A , Hoyland , K , Salganik , E , van den Berg , M , Li , H , Ervik , A & Puolakka , O 2021 , Scale-model ice ridges and interaction with narrow structures, Part 4: Global loads and failure mechanisms . in Proceedings of the 26th International Conference on Port and Ocean Engineering under Arctic Conditions . Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions , Luleå University of Technology , International Conference on Port and Ocean Engineering under Arctic Conditions , Moscow , Russian Federation , 14/06/2021 . 2077-7841 PURE UUID: c576b57b-f69b-4b07-8331-e1faf463b1b9 PURE ITEMURL: https://research.aalto.fi/en/publications/c576b57b-f69b-4b07-8331-e1faf463b1b9 PURE LINK: https://www.poac.com/PapersOnline.html PURE LINK: http://www.scopus.com/inward/record.url?scp=85124134603&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/76597545/POAC21_031.pdf https://aaltodoc.aalto.fi/handle/123456789/111488 URN:NBN:fi:aalto-2021120810632 |
op_rights |
openAccess |
_version_ |
1766295053849853952 |