Hide metadata

dc.date.accessioned2020-03-18T19:05:12Z
dc.date.created2020-01-29T10:39:45Z
dc.date.issued2020
dc.identifier.citationRoss, Emma Astrup, Ole Christian Bitner-Gregersen, Elzbieta Bunn, Nigel Feld, Graham Gouldby, Ben Huseby, Arne Liu, Ye Randell, David Vanem, Erik Jonathan, Philip . On environmental contours for marine and coastal design. Ocean Engineering. 2020, 195
dc.identifier.urihttp://hdl.handle.net/10852/74065
dc.description.abstractEnvironmental contours are used in structural reliability analysis of marine and coastal structures as an approximate means to locate the boundary of the distribution of environmental variables, and hence sets of environmental conditions giving rise to extreme structural loads and responses. Outline guidance concerning the application of environmental contour methods is given in recent design guidelines from many organisations. However there is lack of clarity concerning (a) the differences between approaches to environmental contour estimation reported in the literature, and (b) the relationship between the environmental contour, corresponding to some return period, and the extreme structural response for the same period. Hence there is uncertainty about precisely when environmental contours should be used, and how they should be used well. This article seeks to provide some assistance in understanding the fundamental issues regarding environmental contours and their use in structural reliability analysis. Approaches to estimating the joint distribution of environmental variables, and to estimating environmental contours based on that distribution, are described. Simple freely-available software for estimation of the joint distribution, and hence environmental contours, is illustrated. Extra assumptions required to relate the characteristics of environmental contours to structural failure are outlined. Alternative response-based methods not requiring environmental contours are summarised. The results of an informal survey of the metocean user community regarding environmental contours are presented. Finally, recommendations about when and how environmental contour methods should be used are made.
dc.languageEN
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleOn environmental contours for marine and coastal design
dc.typeJournal article
dc.creator.authorRoss, Emma
dc.creator.authorAstrup, Ole Christian
dc.creator.authorBitner-Gregersen, Elzbieta
dc.creator.authorBunn, Nigel
dc.creator.authorFeld, Graham
dc.creator.authorGouldby, Ben
dc.creator.authorHuseby, Arne
dc.creator.authorLiu, Ye
dc.creator.authorRandell, David
dc.creator.authorVanem, Erik
dc.creator.authorJonathan, Philip
dc.date.embargoenddate2021-11-07
cristin.unitcode185,15,13,35
cristin.unitnameRisiko og Stokastikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1
dc.identifier.cristin1784963
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ocean Engineering&rft.volume=195&rft.spage=&rft.date=2020
dc.identifier.jtitleOcean Engineering
dc.identifier.volume195
dc.identifier.doihttps://doi.org/10.1016/j.oceaneng.2019.106194
dc.identifier.urnURN:NBN:no-77177
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0029-8018
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/74065/2/DsgCntRvw19.pdf
dc.type.versionAcceptedVersion
cristin.articleid106194
dc.relation.projectNFR/249261


Files in this item

Appears in the following Collection

Hide metadata

Attribution-NonCommercial-NoDerivatives 4.0 International
This item's license is: Attribution-NonCommercial-NoDerivatives 4.0 International