Print Email Facebook Twitter Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures Title Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures: An experimental and numerical study Author Solbes Ferri, Irene (TU Delft Aerospace Engineering) Contributor Castro, Saullo G.P. (mentor) Groves, R.M. (graduation committee) Knebusch, Johannes (mentor) Degree granting institution Delft University of Technology Programme Aerospace Engineering | Structures and Materials Date 2022-02-10 Abstract 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. Subject Dynamicsfibre optic sensorsExperimental modal analysisStructural Health Monitoring (SHM)Damage IdentificationComposite structuresbeam-like structuresStrain sensor To reference this document use: http://resolver.tudelft.nl/uuid:a0bd1c6a-5cca-46ce-bd31-56673dac4024 Coordinates 51.5271927, 9.9314321 Bibliographical note The present master thesis was a collaboration between the Aerospace engineering faculty of TU Delft and the Aeroelasticity Institute of DLR (Göttingen). Part of collection Student theses Document type master thesis Rights © 2022 Irene Solbes Ferri Files PDF ASM_MSc_Thesis_Irene_Solb ... _Ferri.pdf 32.33 MB Close viewer /islandora/object/uuid:a0bd1c6a-5cca-46ce-bd31-56673dac4024/datastream/OBJ/view