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Non-destructive Testing and Damage Assessment of Composite Aerospace Structures Using Lamb Waves

Raddatz, Florian and Heinze, Christoph and Dienel, Christoph and Lingenauber, Martin (2013) Non-destructive Testing and Damage Assessment of Composite Aerospace Structures Using Lamb Waves. In: Proceedings of the 4th International Workshop on Aircraft Systems Technologies, pp. 425-436. Shaker Verlag. 4th International Workshop on Aircraft System Technologies, 23.-24. April 2013, Hamburg. ISBN 978-3-8440-1850-9. ISSN 0945-2214.

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This paper shows the special requirements and challenges of non-destructive testing (NDT) methods that arise from the increasing use of composite materials in aerospace structures. Current NDT methods often fail due to the large size of the structures or the material properties of composites. Manual testing methods are very time consuming for large structures and therefore increase the grounding time of the aircraft. They are also subject to human errors and do not provide the documentation quality of automated systems. To solve these problems a method based on the propagation of Lamb waves is presented that can be used for testing and monitoring the structure for defects. An optical measurement platform for the detection of Lamb waves, that is currently being developed at the DLR, is presented and it is shown, how damages can be localized in complex parts. Based on wave propagation simulation and damage assessment techniques the speci?c impact of the damage on the integrity of the structure and suitable repair concepts can be derived.

Item URL in elib:https://elib.dlr.de/82314/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Non-destructive Testing and Damage Assessment of Composite Aerospace Structures Using Lamb Waves
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Raddatz, FlorianFlorian.Raddatz (at) dlr.deUNSPECIFIED
Heinze, ChristophChristoph.Heinze (at) dlr.deUNSPECIFIED
Dienel, ChristophChristoph.Dienel (at) dlr.deUNSPECIFIED
Lingenauber, MartinMartin.Lingenauber (at) dlr.deUNSPECIFIED
Date:23 April 2013
Journal or Publication Title:Proceedings of the 4th International Workshop on Aircraft Systems Technologies
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 425-436
Publisher:Shaker Verlag
Keywords:structural health monitoring, lamb waves, vibrometry
Event Title:4th International Workshop on Aircraft System Technologies
Event Location:Hamburg
Event Type:international Conference
Event Dates:23.-24. April 2013
Organizer:Technische Universität Hamburg-Harburg
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Raddatz, Dr.-Ing. Florian
Deposited On:13 Aug 2013 09:39
Last Modified:13 Aug 2013 09:39

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