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Temperature Compensation for Damage Detection in Composite Structures using Guided Waves

Moix-Bonet, Maria and Eckstein, Benjamin and Wierach, Peter (2018) Temperature Compensation for Damage Detection in Composite Structures using Guided Waves. In: www.ndt.net. 9th European Workshop on Structural Health Monitoring, 10.-13. Juli, 2018, Manchester, Großbritannien.

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Guided wave based SHM poses a suitable technique in terms of damage detectability in composite structures with complex geometries. One of the main challenges for the application of the technique resides in the broad spectrum of environmental and operational conditions of an aircraft. A test series including changing temperature and realistic impact damages has been performed to evaluate data normalization approaches. Within the EU-funded DEMETER project, composite plates with co-bonded structural elements and an integrated SHM network have been manufactured for testing. The presented work focuses on the damage detection in varying temperature conditions using a data-driven method. The data-based approach addresses the damage identification as a pattern recognition problem, generating knowledge from previously collected data. The key aspects of this article include the extraction of the damage relevant features, the pattern recognition concept for the data normalization and the subsequent damage detection.

Item URL in elib:https://elib.dlr.de/123729/
Document Type:Conference or Workshop Item (Speech)
Title:Temperature Compensation for Damage Detection in Composite Structures using Guided Waves
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Moix-Bonet, MariaMaria.Moix-Bonet (at) dlr.deUNSPECIFIED
Eckstein, BenjaminBenjamin.Eckstein (at) airbus.comUNSPECIFIED
Wierach, PeterPeter.Wierach (at) dlr.deUNSPECIFIED
Date:July 2018
Journal or Publication Title:www.ndt.net
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:guided waves, structural health Monitoring, temperature compensation
Event Title:9th European Workshop on Structural Health Monitoring
Event Location:Manchester, Großbritannien
Event Type:international Conference
Event Dates:10.-13. Juli, 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Moix-Bonet, Maria
Deposited On:10 Dec 2018 08:34
Last Modified:20 Jun 2021 15:51

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