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A full-scale finite-element model of the Vasa ship
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.ORCID iD: 0000-0003-3384-3971
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology.
Swedish National Maritime Museums, the Vasa Museum.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
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2017 (English)In: Proceedings of ECCOMAS Thematic Conference CompWood 2017: Computational Methods in Wood Mechanics, 2017Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

A full-scale model of the 17th century Vasa shipwreck has been developed to assess its current and future structural stability as well as design an improved support structure. A wireframe model, consisting of only lines, points and curves to describe the geometry of the ship, has been provided by the Vasa museum. It has been developed based on geodetic measurements using a total station. From this wireframe model, a three-dimensional (3D) model comprising solid bodies for solid-like parts (i.e. hull and keel), surfaces for the shell-like components (deck planks) and lines for beam-like constituents (deck beams) has been developed in Creo Parametric 3D software. This geometric model has been imported in finite-element software, Ansys, for further development of the stiffeners (knees, riders, stanchions, masts, etc.), adjustment of the correct location of deck beams and, finally, structural analyses of the entire ship (Figure 1). The procedure for selection of the different types of elements in the finite-element (FE) model, the definition of orthotropic material properties for the timber structure and preliminary results are discussed in this paper. Experiences drawn from this engineering project may also be useful in development of finite element models for structural assessment of other complex wooden structures in cultural heritage.

Place, publisher, year, edition, pages
2017.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:uu:diva-332819OAI: oai:DiVA.org:uu-332819DiVA: diva2:1154265
Conference
ECCOMAS Thematic Conference CompWood 2017: Computational Methods in Wood Mechanics-from Material Properties to Timber Structure, June 7-9, 2017, Vienna, Austria
Available from: 2017-11-02 Created: 2017-11-02 Last updated: 2017-11-14Bibliographically approved

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Afshar, RezaAlavyoon, Navidvan Dijk, Nico P.Vorobyev, AlexeyGamstedt, Kristofer

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