elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Lamb Wave Interaction at Delamination and Debondings Due to Impact Damage in Complex Stiffened CFRP Structures

Eckstein, Benjamin und Moix-Bonet, Maria und Bach, Martin und Fritzen, Klaus-Peter (2018) Lamb Wave Interaction at Delamination and Debondings Due to Impact Damage in Complex Stiffened CFRP Structures. ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4039692. ISSN 2572-3901.

Dieses Archiv kann nicht den Volltext zur Verfügung stellen.

Offizielle URL: http://nondestructive.asmedigitalcollection.asme.org/article.aspx?articleid=2676654

Kurzfassung

The increased usage of carbon fiber reinforced plastics (CFRP) for primary aerospace structures involves dealing with the susceptibility of composite laminates to impact loads as well as the occurrence of barely visible impact damages. One special case among impact sources is the so-called blunt impact, which may cause damage primarily to the internal structure. Therefore, the assessment of debonding of stiffening elements in CFRP structures poses an attractive application case for structural health monitoring by guided ultrasonic waves. Wave propagation phenomena at impact damages as well as the signal processing utilized to extract a damage related feature (i.e., damage index (DI)) contribute to the sensitivity, and thus, to the reliability of structural health monitoring (SHM) systems. This work is based on data from the EU-funded project SARISTU, where a generic CFRP door surrounding fuselage panel with an integrated sensor network has been built and tested by introducing a large number of impact damages. Wave interaction of delaminations and stringer debondings of different size and morphology in omega-stringer stiffened structures are examined to highlight the factors contributing to the sensitivity. Common damage indicator formulations for the use with imaging algorithms, such as the reconstruction algorithm for the probabilistic inspection of damage (RAPID), are applied on data from various damage cases. Furthermore, the difference in detectability of delaminations and debondings as well as the implications on imaging algorithms is examined.

elib-URL des Eintrags:https://elib.dlr.de/120727/
Dokumentart:Zeitschriftenbeitrag
Titel:Lamb Wave Interaction at Delamination and Debondings Due to Impact Damage in Complex Stiffened CFRP Structures
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Eckstein, BenjaminAirbus GmbHNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Moix-Bonet, MariaMaria.Moix-Bonet (at) dlr.dehttps://orcid.org/0000-0002-1327-0080NICHT SPEZIFIZIERT
Bach, MartinAirbus HelicoptersNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Fritzen, Klaus-PeterUniversity of SiegenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2018
Erschienen in:ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1115/1.4039692
Verlag:American Society of Mechanical Engineers (ASME)
Name der Reihe:ASME Journal of Nondestructive Evaluation
ISSN:2572-3901
Status:veröffentlicht
Stichwörter:SHM, Acousto Ultrasonics, Damage Detection, Composites, Aeronautic Structures
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen und Werkstoffe (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Multifunktionswerkstoffe
Hinterlegt von: Moix-Bonet, Maria
Hinterlegt am:09 Jul 2018 08:49
Letzte Änderung:28 Mär 2023 23:51

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.