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Fatigue Life Predictions of Friction Stir Welded Joints by Using Fracture Mechanics Methods

Ghidini, Tommaso (2006) Fatigue Life Predictions of Friction Stir Welded Joints by Using Fracture Mechanics Methods. Other. Dissertation. Universität Paderborn. 160 S.

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The deterioration of the airframe due to fatigue loading and corrosion attack should be monitored by scheduled periodic inspections to assure the appropriate detection of the damaged area. In the present investigation an exploratory test program has been carried out to improve the general understanding of the fatigue behaviour of undamaged and corrosion damaged joints. Also the sequence effects in FSW joints are studied. The aim is to offer a basis both for a better experimental documentation as well as for an evaluation of existing crack propagation prediction models. Moreover specifically existent fracture mechanics principles are applied to friction stir welded structures. The objective is to elaborate an easy, practical and reliable engineering approach to perform life predictions of friction stir welded structures under in-service loading and in the presence of corrosion attack.

Item URL in elib:https://elib.dlr.de/46128/
Document Type:Monograph (Other, Dissertation)
Title:Fatigue Life Predictions of Friction Stir Welded Joints by Using Fracture Mechanics Methods
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Journal or Publication Title:VDI-Berichte
Refereed publication:No
Open Access:No
Number of Pages:160
Publisher:VDI-Verlag GmbH, Düsseldorf
Series Name:Reihe 18, Mechanik/Bruchmechanik
Keywords:friction stir welding, fatigue, fatigue crack propagation, residual stresses, variable amplitude loading, fatigue life prediction, AFGROW, NASGROW
Institution:Universität Paderborn
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Mechanical Testing of Materials
Deposited By: Döker, Dr.-Ing. Hubert
Deposited On:12 Dec 2006
Last Modified:27 Apr 2009 13:19

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