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Joining-technique selection for complex multi-material structures focusing on the mechanical behaviour of adhesive joints

Sikora, Sebastian P. und Brodbeck, Marcel und Behling, Tobias (2018) Joining-technique selection for complex multi-material structures focusing on the mechanical behaviour of adhesive joints. In: Book of Abstracts of EURADH 2018, Seiten 305-306. Publindústria, Produção de Comunicação, Lda.. 12th European Adhesion Conference and 4th Luso-Brazilian Conference on Adhesion and Adhesives (EURADH/CLBA 2018), 5.-7. Sep. 2018, Lissabon, Portugal. ISBN 978-989-8927-24-8.

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Kurzfassung

The trend to use multi-material structures in automotive lightweight design leads to an increasing diversity of joining techniques being applied. In structural components, these often can be combined in a large number of possible joining-technique configurations. This poses a challenge for engineers to choose the optimal configuration. The vision is to automate and facilitate the selection of a mechanically optimal joining-technique configuration in a software environment. Since adhesive solutions are crucial to multi-material designs, the initial focus of the current studies is on epoxy and polyurethane adhesive bonds. As a basis, a universal application-oriented characterization approach for adhesive bonds, developed at DLR, is used. Aiming at full-scale crash models, this approach incorporates cohesive-zone elements due to their high computation efficiency. To optimize the joining configuration, validation starts at the single configuration, proceeding to the optimization process. The cohesive-zone simulation method is applied to develop a validation specimen that exhibits non-trivial deformation during testing. Compared to structural applications, for research purposes, this multiple-joint specimen reduces complexity in the optimization process. It comprises three joints into one sample; for each joint two different adhesives can be chosen. The specimen is shown in the figure. In a tensile test, each joint is dominated by a different stress state - normal, shear and peeling. In that way a complex load case is achieved, for which the first-failing joint and the optimal joining-technique configuration is determined in simulation and validated by experiments.

elib-URL des Eintrags:https://elib.dlr.de/122334/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Joining-technique selection for complex multi-material structures focusing on the mechanical behaviour of adhesive joints
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Sikora, Sebastian P.sebastian.sikora (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Brodbeck, Marcelmarcel.brodbeck (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Behling, Tobiastobias.behling (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:September 2018
Erschienen in:Book of Abstracts of EURADH 2018
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 305-306
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
da Silva, Lucas F. M. da SilvaUniversity of PortoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:Publindústria, Produção de Comunicação, Lda.
ISBN:978-989-8927-24-8
Status:veröffentlicht
Stichwörter:joining-technique configuration, structural simulation, multiple-joint specimen, adhesive bond, epoxy, polyurethane
Veranstaltungstitel:12th European Adhesion Conference and 4th Luso-Brazilian Conference on Adhesion and Adhesives (EURADH/CLBA 2018)
Veranstaltungsort:Lissabon, Portugal
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:5.-7. Sep. 2018
Veranstalter :Lucas F. M. da Silva, University of Porto
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - NGC Fahrzeugstruktur (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Fahrzeugkonzepte > Werkstoff- und Verfahrensanwendungen Gesamtfahrzeug
Institut für Bauweisen und Strukturtechnologie > Strukturelle Integrität
Hinterlegt von: Sikora, Dr. Sebastian P.
Hinterlegt am:15 Nov 2018 10:13
Letzte Änderung:15 Nov 2018 10:13

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