Design of Bolted L-Flanged Connections

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Abstract

In wind turbine towers the preferred design is circular tubes that are connected to each other by a bolted flange joint. The design is typically that of an L-flange resulting in an eccentrically loaded bolted connection. The eccentricity results in a non-linear relationship between external load on the tower and the tensile force in the bolt. In the literature and also in design standards different models are presented for this important non-linear response. The present work presents a simplified expression for the non-linear force response based on finite element calculations using contact analysis. Secondly, focus is on simple modifications of the flange design that considerably improves the strength of the connection.
Original languageEnglish
Title of host publicationProceedings of the 29th Nordic Seminar on Computational Mechanics (NSCM-29)
EditorsR. Larsson
Number of pages4
Publication date2016
Publication statusPublished - 2016
Event29th Nordic Seminar on Computational Mechanics - Gothenburg, Sweden
Duration: 26 Oct 201628 Oct 2016

Conference

Conference29th Nordic Seminar on Computational Mechanics
CountrySweden
CityGothenburg
Period26/10/201628/10/2016

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