Fatigue Damage Predictions in Aluminium Constructions

Jørgen Juncher Jensen, Rikard Toernqvist, Poul Erik Nielsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The paper describes parts of the outcome of a large Danish research project on Large Scale Aluminum Connections. The topic addressed is calculation of fatigue failure in complicated welded aluminum connections. The calculation procedure is based on a S-N curve for the hot-spot stresses at the weld toe, a finite element calculation of the hot-spot stresses and, a stress concentration factor to account for the weld geometry. A template for the finite element calculations has been developed for automatic extrapolation of the hot-spot stresses to the weld toe. The fatigue failure predictions obtained are compared with large-scale experiments for a typical connection between a longitudinal girder and a transverse web frame in a ship. The effect of repair work is investigated considering both repair after failure or before the load is applied. Finally, comparison between measured and predicted crack growth in plane connections with a edge crack is performed.
Original languageEnglish
Title of host publicationProceedings of the 8th International Fatigue Congress
Place of PublicationU.K.
PublisherEMAS Publishing
Publication date2002
Publication statusPublished - 2002
Event8th International Fatigue Congress : Design and Analysis of Welded High Strength Steel Structures - Stockholm, Sweden
Duration: 2 Jun 20027 Jun 2002
Conference number: 8

Conference

Conference8th International Fatigue Congress
Number8
CountrySweden
CityStockholm
Period02/06/200207/06/2002

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