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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

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