Investigation on damage tolerance behaviour of Aluminium alloys

General Information

Airframes are designed according to the Fail Safe Concept allowing for certain defect sizes. This concept requires the monitoring of the airframe structure at determined inspection intervals to ensure the defects staying in the stable crack growth regime. Such a system has been developed in the past and is in good agreement with theories that have been generated and verified based on the long term experience with the standard Aluminium alloy 2024. With the recent optimisation of Aluminium-Copper-Magnesium alloys and the selection / development of new Aluminium alloy types for fuselage and wing applications it becomes necessary to verify that these theories derived from 2024 experience are transferrable to other alloys and whether the same tests are applicable for characterisation of their damage tolerant behaviour. The overall objective of the IDA project is to establish a comprehensive understanding of the fatigue crack propagation mechanisms for the recently developed Aluminium alloys.

EU-Programme Acronym and Subprogramme Area	FP5-GROWTH-1999, Key action 4: New perspectives in Aeronautics; Structures and materials application
Project Type	RTD
Contract Number	G4RD-CT-2001-00629
Co-ordinator	EADS Airbus GmbH (DE)

Total Eligible Costs (€)	Hereon Eligible Costs (€)	EC Funding for Hereon (€)
3.699.851	276.946

Contact Person at Hereon

Prof. Dr.-Ing. habil. Norbert Huber, Institute of Materials Research, phone: +49-4152-87 2500 (initial contact: Dr. Mustafa Kocak, Institute of Materials Research) E-mail contact

Participants

Aérospatiales (FR), AIRBUS UK Ltd. (UK), Deutsches Zentrum für Luft- und Raumfahrt DLR (DE), EADS Airbus GmbH (DE), EADS Deutschland GmbH (DE), Finmeccanica SpA (IT), GIE EADS CCR (FR), ISTRAM, Institute of Structures and Advanced Materials, Patras (GR), Pechiney S.A. (FR), University of Limerick (IE)

Last Update: 16. April 2021