Experimentelle und Numerische Untersuchungen von Knotenverbindungen für Tripods von Offshore-Windenergieanlagen

authored by

Peter Schaumann, Christian Keindorf, Frank Tomasch

Abstract

This paper summarises fatigue tests on Y-joints to estimate the influence of a post weld treatment method called Ultrasonic Impact Treatment (UIT). With this method the fatigue resistance could be increased significantly. Furthermore tubular joints of tripods are analysed with numerical simulations to judge these welded joints with the hot-spot-concept. The stress concentration factor for the treated weld toe geometry was determined numerically using submodel analysis. Finally a comparison between welded and cast iron joints is carried out for the fatigue limit state under consideration of experimental results.

Organisation(s)

Institute of Steel Construction

External Organisation(s)

Warnow Design GmbH

Type

Contribution in non-scientific journal

Journal

STAHLBAU

Volume

76

Pages

627-635

No. of pages

9

ISSN

0038-9145

Publication date

04.09.2007

Publication status

Published

ASJC Scopus subject areas

Civil and Structural Engineering, Building and Construction, Mechanics of Materials, Mechanical Engineering, Metals and Alloys

Electronic version(s)

https://doi.org/10.1002/stab.200710066 (Access: Closed)