Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales
This paper gives an overview of the factors that affect the strength and structural design of advanced thin-walled marine structures with reduced plate thickness or alternative topologies to those used today in the marine industry. Due to production-induced initial deformations and resulting geometr...
Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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American Society of Mechanical Engineers (ASME)
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Online Access: | https://aaltodoc.aalto.fi/handle/123456789/102212 https://doi.org/10.1115/1.4045371 |
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ftaaltouniv:oai:aaltodoc.aalto.fi:123456789/102212 2024-04-28T08:04:15+00:00 Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales Romanoff, Jani Remes, Heikki Varsta, Petri Reinaldo Goncalves, Bruno Körgesaar, Mihkel Lillemäe-Avi, Ingrit Jelovica, Jasmin Liinalampi, Sami Department of Mechanical Engineering Marine Technology Meyer Turku Shipyard University of British Columbia Aalto-yliopisto Aalto University 2020-06-01 8 application/pdf https://aaltodoc.aalto.fi/handle/123456789/102212 https://doi.org/10.1115/1.4045371 en eng American Society of Mechanical Engineers (ASME) JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING Volume 142, issue 3 Romanoff, J, Remes, H, Varsta, P, Reinaldo Goncalves, B, Körgesaar, M, Lillemäe-Avi, I, Jelovica, J & Liinalampi, S 2020, ' Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales ', JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING, vol. 142, no. 3, 030801 . https://doi.org/10.1115/1.4045371 0892-7219 1528-896X PURE UUID: 9593fad8-09ee-4d55-8222-2f36a693525b PURE ITEMURL: https://research.aalto.fi/en/publications/9593fad8-09ee-4d55-8222-2f36a693525b PURE LINK: http://www.scopus.com/inward/record.url?scp=85083917446&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/54825595/ENG_Romanoff_et_al_Limit_state_analysis_Journal_of_Offshore_Mechanics_and_Arctic_Engineering.pdf https://aaltodoc.aalto.fi/handle/123456789/102212 URN:NBN:fi:aalto-202101251522 doi:10.1115/1.4045371 openAccess A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä acceptedVersion 2020 ftaaltouniv https://doi.org/10.1115/1.4045371 2024-04-10T00:26:27Z This paper gives an overview of the factors that affect the strength and structural design of advanced thin-walled marine structures with reduced plate thickness or alternative topologies to those used today in the marine industry. Due to production-induced initial deformations and resulting geometrical non-linearity, the classical division between primary, secondary, and tertiary responses becomes strongly coupled. Volume-averaged, non-linear response of structural element can be used to define the structural stress-strain relation that enables analysis at the next, larger, length scale. This, today's standard homogenization process, needs to be complemented with localization, where the stresses are assessed at the details, such as welds for fatigue analysis. Due to this, the production-induced initial distortions need to be considered with high accuracy. Another key question is the length-scale interaction in terms of continuum description. Non-classical continuum mechanics are needed when consecutive scales are close. Strain-gradients are used to increase the accuracy of the kinematical description of beams, plates, and shells. The paper presents examples of stiffened and sandwich panels covering limit states such as fatigue, non-linear buckling, and fracture. Peer reviewed Article in Journal/Newspaper Arctic Aalto University Publication Archive (Aaltodoc) Journal of Offshore Mechanics and Arctic Engineering 142 3 |
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Open Polar |
collection |
Aalto University Publication Archive (Aaltodoc) |
op_collection_id |
ftaaltouniv |
language |
English |
description |
This paper gives an overview of the factors that affect the strength and structural design of advanced thin-walled marine structures with reduced plate thickness or alternative topologies to those used today in the marine industry. Due to production-induced initial deformations and resulting geometrical non-linearity, the classical division between primary, secondary, and tertiary responses becomes strongly coupled. Volume-averaged, non-linear response of structural element can be used to define the structural stress-strain relation that enables analysis at the next, larger, length scale. This, today's standard homogenization process, needs to be complemented with localization, where the stresses are assessed at the details, such as welds for fatigue analysis. Due to this, the production-induced initial distortions need to be considered with high accuracy. Another key question is the length-scale interaction in terms of continuum description. Non-classical continuum mechanics are needed when consecutive scales are close. Strain-gradients are used to increase the accuracy of the kinematical description of beams, plates, and shells. The paper presents examples of stiffened and sandwich panels covering limit states such as fatigue, non-linear buckling, and fracture. Peer reviewed |
author2 |
Department of Mechanical Engineering Marine Technology Meyer Turku Shipyard University of British Columbia Aalto-yliopisto Aalto University |
format |
Article in Journal/Newspaper |
author |
Romanoff, Jani Remes, Heikki Varsta, Petri Reinaldo Goncalves, Bruno Körgesaar, Mihkel Lillemäe-Avi, Ingrit Jelovica, Jasmin Liinalampi, Sami |
spellingShingle |
Romanoff, Jani Remes, Heikki Varsta, Petri Reinaldo Goncalves, Bruno Körgesaar, Mihkel Lillemäe-Avi, Ingrit Jelovica, Jasmin Liinalampi, Sami Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
author_facet |
Romanoff, Jani Remes, Heikki Varsta, Petri Reinaldo Goncalves, Bruno Körgesaar, Mihkel Lillemäe-Avi, Ingrit Jelovica, Jasmin Liinalampi, Sami |
author_sort |
Romanoff, Jani |
title |
Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
title_short |
Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
title_full |
Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
title_fullStr |
Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
title_full_unstemmed |
Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales |
title_sort |
limit state analyses in design of thin-walled marine structures - some aspects on length-scales |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2020 |
url |
https://aaltodoc.aalto.fi/handle/123456789/102212 https://doi.org/10.1115/1.4045371 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING Volume 142, issue 3 Romanoff, J, Remes, H, Varsta, P, Reinaldo Goncalves, B, Körgesaar, M, Lillemäe-Avi, I, Jelovica, J & Liinalampi, S 2020, ' Limit state analyses in design of thin-walled marine structures - Some aspects on length-scales ', JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING, vol. 142, no. 3, 030801 . https://doi.org/10.1115/1.4045371 0892-7219 1528-896X PURE UUID: 9593fad8-09ee-4d55-8222-2f36a693525b PURE ITEMURL: https://research.aalto.fi/en/publications/9593fad8-09ee-4d55-8222-2f36a693525b PURE LINK: http://www.scopus.com/inward/record.url?scp=85083917446&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/54825595/ENG_Romanoff_et_al_Limit_state_analysis_Journal_of_Offshore_Mechanics_and_Arctic_Engineering.pdf https://aaltodoc.aalto.fi/handle/123456789/102212 URN:NBN:fi:aalto-202101251522 doi:10.1115/1.4045371 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1115/1.4045371 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
142 |
container_issue |
3 |
_version_ |
1797575035555151872 |