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Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures

Solbes Ferri, Irene (2022) Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures. Masterarbeit, TU Delft.

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Offizielle URL: https://repository.tudelft.nl/islandora/object/uuid:a0bd1c6a-5cca-46ce-bd31-56673dac4024

Kurzfassung

The objective of this master project is to improve the current SHM techniques for global damage identification of beam-like composite structures. The studied damage diagnosis method is based on structural vibrations from which the modal parameters are obtained. The literature study provides an overview of the most common vibration-based damage identification methods. The modal curvature shape- and modal strain energy-based methods are selected due to their higher sensitivity to local damages. These methods are applied on an aero-elastically tailored composite wing. High-spatial-resolution modal shapes are extracted from the structure with a state-of-the-art fibre optic strain sensing technology based on Rayleigh back-scattering. Damages are simulated in the wing employing localized mass attachments. The achievable level of damage identification with this technique is found and characterized. The different vibration-based methods are compared and their potential is discussed. It is concluded that the used sensing technique is an excellent choice for global damage diagnosis in composite structures.

elib-URL des Eintrags:https://elib.dlr.de/188355/
Dokumentart:Hochschulschrift (Masterarbeit)
Titel:Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Solbes Ferri, IreneTU DelftNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Februar 2022
Referierte Publikation:Nein
Open Access:Nein
Seitenanzahl:97
Status:veröffentlicht
Stichwörter:Dynamics, fibre optic sensors, Experimental modal analysis, Structural Health Monitoring (SHM), Damage Identification, Composite structures, beam-like structures, Strain sensor
Institution:TU Delft
Abteilung:Aerospace Engineering, Structures and Materials
HGF - Forschungsbereich:Energie
HGF - Programm:Materialien und Technologien für die Energiewende
HGF - Programmthema:Photovoltaik und Windenergie
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SW - Solar- und Windenergie
DLR - Teilgebiet (Projekt, Vorhaben):E - Windenergie
Standort: Göttingen
Institute & Einrichtungen:Institut für Aeroelastik > Strukturdynamik und Systemidentifikation
Hinterlegt von: Knebusch, Johannes
Hinterlegt am:19 Sep 2022 11:49
Letzte Änderung:19 Sep 2022 11:49

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