A numerical analysis of the effects of manufacturing processes on material pre-strain in offshore wind monopiles

Simple item page
dc.contributor.authorAnandavijayan, Satya
dc.contributor.authorMehmanparast, Ali
dc.contributor.authorBrennan, Feargal
dc.date.accessioned2019-04-30T09:04:59Z
dc.date.available2019-04-30T09:04:59Z
dc.date.issued2018-12-31
dc.description.abstractThe majority of offshore wind turbines in Europe are supported by monopile type foundation structures. Monopiles are made of large thickness steel plates which are longitudinally welded to fabricate “cans” and these cans are subsequently welded around the circumference to manufacture a monopile. Monopile structures can have diameters of 4-10m, with wall thicknesses of 40-150mm. To achieve the cylindrical shape in individual cans, large thickness steel plates are typically cold formed via the three-roll bending process. During forming of these plates, the material is subjected to plastic pre-strain, which subsequently influences the fracture and fatigue properties of monopile structures. In this study, a finite element model has been developed to predict the pre-straining levels in monopiles of different dimensions. To determine the influence of numerous manufacturing practices, a sensitivity analysis of different factors has been conducted. These include fabrication dependent variables such as the influence of friction coefficient and bending force, and geometry dependent factors such as plate thickness, length, and distance between rollers. From the numerical results, a range of expected material pre-strain levels have been identified and presented in this paper.en_UK
dc.identifier.citationSatya Anandavijayan, Ali Mehmanparast and Feargal Brennan. A numerical analysis of the effects of manufacturing processes on material pre-strain in offshore wind monopiles. Procedia Structural Integrity, Volume 13, 2018, pp. 953-958en_UK
dc.identifier.issn2452-3216
dc.identifier.urihttps://doi.org/10.1016/j.prostr.2018.12.178
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14124
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectmaterial pre-strainen_UK
dc.subjectmonopileen_UK
dc.subjectfatigueen_UK
dc.subjectfractureen_UK
dc.subjectS355en_UK
dc.subjectfinite element analysisen_UK
dc.subjectthree roll bendingen_UK
dc.titleA numerical analysis of the effects of manufacturing processes on material pre-strain in offshore wind monopilesen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
A_Numerical_analysis_of_the_effects_of_Manufacturing-2018.pdf
Size:
1.12 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)