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doi:10.22028/D291-29879
Titel: | Analysis of Guided Wave Propagation in a Multi-Layered Structure in View of Structural Health Monitoring |
VerfasserIn: | Lugovtsova, Yevgeniya Bulling, Jannis Boller, Christian Prager, Jens |
Sprache: | Englisch |
Titel: | Applied Sciences |
Bandnummer: | 9 |
Heft: | 21 |
Verlag/Plattform: | MDPI |
Erscheinungsjahr: | 2019 |
Freie Schlagwörter: | lamb waves composite ultrasonic testing numerical modelling pressure vessels |
DDC-Sachgruppe: | 500 Naturwissenschaften 600 Technik |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Guided waves (GW) are of great interest for non-destructive testing (NDT) and structural health monitoring (SHM) of engineering structures such as for oil and gas pipelines, rails, aircraft components, adhesive bonds and possibly much more. Development of a technique based on GWs requires careful understanding obtained through modelling and analysis of wave propagation and mode-damage interaction due to the dispersion and multimodal character of GWs. The Scaled Boundary Finite Element Method (SBFEM) is a suitable numerical approach for this purpose allowing calculation of dispersion curves, mode shapes and GW propagation analysis. In this article, the SBFEM is used to analyse wave propagation in a plate consisting of an isotropic aluminium layer bonded as a hybrid to an anisotropic carbon fibre reinforced plastics layer. This hybrid composite corresponds to one of those considered in a Type III composite pressure vessel used for storing gases, e.g., hydrogen in automotive and aerospace applications. The results show that most of the wave energy can be concentrated in a certain layer depending on the mode used, and by that damage present in this layer can be detected. The results obtained help to understand the wave propagation in multi-layered structures and are important for further development of NDT and SHM for engineering structures consisting of multiple layers. |
DOI der Erstveröffentlichung: | 10.3390/app9214600 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-298797 hdl:20.500.11880/30033 http://dx.doi.org/10.22028/D291-29879 |
ISSN: | 2076-3417 |
Datum des Eintrags: | 17-Nov-2020 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Materialwissenschaft und Werkstofftechnik |
Professur: | NT - Prof. Dr. Christian Boller |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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applsci-09-04600.pdf | 1,66 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons