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The Dispersion Calculator: A Free Software for Calculating Dispersion Curves of Guided Waves

Huber, Armin (2024) The Dispersion Calculator: A Free Software for Calculating Dispersion Curves of Guided Waves. In: 20th World Conference on Non-Destructive Testing (WCNDT 2024), 29 (6), Seiten 1-17. NDT.net. The 20th World Conference on Non-Destructive Testing (20th WCNDT), 2024-05-27 - 2024-05-31, Incheon, Südkorea. doi: 10.58286/29894. ISSN 1435-4934.

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Offizielle URL: https://www.ndt.net/search/docs.php3?id=29894

Kurzfassung

The nondestructive inspection of components by means of guided waves is an emerging technology in fields like aerospace or pipeline construction and maintenance. The guided waves' capability of propagating many meters in a structure is utilized for swift inspection tasks as well as structural health monitoring. The German Aerospace Center uses Lamb waves for the quality assurance of large-scale aerospace vehicle components made from carbon composites. However, the use of guided waves in NDT requires knowledge of the dispersion curves. DISPERSE is the most renown software for the calculation of dispersion curves. This paper presents the open source Dispersion Calculator (DC). The MATLAB® -based DC is an interactive and fully validated software for the computation of dispersion curves and mode shapes of guided waves in isotropic plates and multilayered anisotropic composites. Damping caused by viscoelasticity and fluid-loading can be considered. DC features the capability of calculating laminates consisting of several hundreds of layers so that even the largest specimens, like rocket booster pressure vessels, can be calculated. This is made possible through the implementation of the stiffness matrix method. DC is also able to distinguish the different mode families, like symmetric, antisymmetric, and nonsymmetric Lamb, shear horizontal, and Scholte waves, depending on the symmetry and coupling properties of a given layup. Lastly, DC features a highly efficient and robust dispersion curve tracing algorithm. DC is available at GitHub, and it has gained many users world-wide since its initial release in 2018.

elib-URL des Eintrags:https://elib.dlr.de/204586/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:The Dispersion Calculator: A Free Software for Calculating Dispersion Curves of Guided Waves
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Huber, ArminArmin.Huber (at) dlr.dehttps://orcid.org/0000-0002-5694-8293161346469
Datum:27 Mai 2024
Erschienen in:20th World Conference on Non-Destructive Testing (WCNDT 2024)
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Band:29
DOI:10.58286/29894
Seitenbereich:Seiten 1-17
Verlag:NDT.net
Name der Reihe:Special Issue of e-Journal of Nondestructive Testing (eJNDT)
ISSN:1435-4934
Status:veröffentlicht
Stichwörter:Guided waves, Dispersion, Numerical modeling, Stiffness matrix method, Software, Composites
Veranstaltungstitel:The 20th World Conference on Non-Destructive Testing (20th WCNDT)
Veranstaltungsort:Incheon, Südkorea
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:27 Mai 2024
Veranstaltungsende:31 Mai 2024
Veranstalter :The Korean Society for Nondestructive Testing (KSNT)
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Komponenten und Systeme
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L CS - Komponenten und Systeme
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturwerkstoffe und Bauweisen
Standort: Augsburg
Institute & Einrichtungen:Institut für Bauweisen und Strukturtechnologie > Automation und Produktionstechnologie
Hinterlegt von: Huber, Armin
Hinterlegt am:11 Jun 2024 09:53
Letzte Änderung:17 Jun 2024 08:43

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