dc.contributor.author | Longva, Vegard | |
dc.contributor.author | Ji, Guomin | |
dc.contributor.author | Sævik, Svein | |
dc.contributor.author | Ye, Naiquan | |
dc.contributor.author | Gjøsteen, Janne Kristin Økland | |
dc.contributor.author | Giertsen, Egil | |
dc.contributor.author | Wang, Yanbin | |
dc.date.accessioned | 2021-06-08T10:23:42Z | |
dc.date.available | 2021-06-08T10:23:42Z | |
dc.date.created | 2021-06-05T15:51:00Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Marine Structures. 2021, 78, . | en_US |
dc.identifier.issn | 0951-8339 | |
dc.identifier.uri | https://hdl.handle.net/11250/2758477 | |
dc.description.abstract | This paper presents a new algorithmic formulation of the clay and sand pipe–soil interaction models recommended by the DNV-RP-F109 code for dynamic on-bottom stability analysis of submarine pipelines. The pipe–soil force update algorithm is formulated within the framework of computational elasto-plasticity and applies Backward-Euler integration to ensure stability and robustness for large time step sizes. Algorithmic optimization techniques are developed by utilizing a closed-form solution and subincrementation. A numerical verification study covering full cyclic displacement ranges of a 12 inch pipeline is presented. The new formulation is shown to increase the time step size by a factor of up to 50 compared to commercial software tools for on-bottom stability analysis. This achievement will be particularly beneficial for long-duration 3D nonlinear time domain on-bottom stability analysis. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier Science | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Algorithmic formulation of clay and sand pipe–soil interaction models for on-bottom stability analysis | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.volume | 78 | en_US |
dc.source.journal | Marine Structures | en_US |
dc.identifier.doi | 10.1016/j.marstruc.2021.102985 | |
dc.identifier.cristin | 1913897 | |
dc.description.localcode | This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | en_US |
dc.source.articlenumber | 102985 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |