---
_id: '63020'
abstract:
- lang: ger
text: Zur Prüfung der mechanischen Eigenschaften von mechanisch gefügten Verbindungen
wird gemäß der Normung in der Regel nur ein Fügepunkt verwendet. In diesem Beitrag
wird die Prüfung von Mehrfachanordnungen von Clinchpunkten in einem modifizierten
Torsionsversuch beschrieben. Bei den Fügeverbindungen der Proben aus artgleichen
Werkstoffen handelt es sich um zwei Varianten symmetrischer Mehrfachanordnungen
von vier Clinchpunkten mit zwei unterschiedlichen Fügepunktabständen, was zu zwei
verschiedenen Längen des Wirkabstands in Bezug auf die Rotationsachse im Torsionsversuch
führt. Das erste Teilziel der Untersuchung ist die Bewertung der Tragfähigkeit
der Mehrfachanordnungen von Clinchpunkten unter Torsionsbeanspruchung. Ein zweites
Teilziel ist die Analyse des Einflusses eines zusätzlichen Clinchpunkts, der als
Drehgelenk in der Rotationsachse wirkt, auf das Tragverhalten und das Versagensverhalten
der Fügeverbindung. Aus den erarbeiteten Resultaten werden Erkenntnisse zum Tragverhalten
der Fügeverbindungen abgeleitet und eine Überschlagsrechnung vorgestellt, um Richtlinien
zur konstruktiven Auslegung von Bauteilen aufzustellen.
author:
- first_name: Stephan
full_name: Lüder, Stephan
id: '104468'
last_name: Lüder
orcid: https://orcid.org/0000-0002-9086-3031
- first_name: Eugen
full_name: Wolf, Eugen
id: '104464'
last_name: Wolf
orcid: 0009-0001-1904-7023
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Wolf E, Brosius A, Schmale HC. Modifizierter Torsionsversuch zur
Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen. In: Zimmermann
M, Deutsche Gesellschaft für Materialkunde e.V. (DGM), eds. 43. Vortrags- und
Diskussionstagung Werkstoffprüfung 2025. ; 2025:478-483.'
apa: Lüder, S., Wolf, E., Brosius, A., & Schmale, H. C. (2025). Modifizierter
Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen.
In M. Zimmermann & Deutsche Gesellschaft für Materialkunde e.V. (DGM) (Eds.),
43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025 (pp. 478–483).
bibtex: '@inproceedings{Lüder_Wolf_Brosius_Schmale_2025, place={Sankt Augustin},
title={Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen},
booktitle={43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025}, author={Lüder,
Stephan and Wolf, Eugen and Brosius, Alexander and Schmale, Hans Christian}, editor={Zimmermann,
Martina and Deutsche Gesellschaft für Materialkunde e.V. (DGM)}, year={2025},
pages={478–483} }'
chicago: Lüder, Stephan, Eugen Wolf, Alexander Brosius, and Hans Christian Schmale.
“Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen.”
In 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, edited by
Martina Zimmermann and Deutsche Gesellschaft für Materialkunde e.V. (DGM), 478–83.
Sankt Augustin, 2025.
ieee: S. Lüder, E. Wolf, A. Brosius, and H. C. Schmale, “Modifizierter Torsionsversuch
zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen,” in 43.
Vortrags- und Diskussionstagung Werkstoffprüfung 2025, Dresden, 2025, pp.
478–483.
mla: Lüder, Stephan, et al. “Modifizierter Torsionsversuch zur Untersuchung des
Tragverhaltens von Clinchpunktmehrfachanordnungen.” 43. Vortrags- und Diskussionstagung
Werkstoffprüfung 2025, edited by Martina Zimmermann and Deutsche Gesellschaft
für Materialkunde e.V. (DGM), 2025, pp. 478–83.
short: 'S. Lüder, E. Wolf, A. Brosius, H.C. Schmale, in: M. Zimmermann, Deutsche
Gesellschaft für Materialkunde e.V. (DGM) (Eds.), 43. Vortrags- und Diskussionstagung
Werkstoffprüfung 2025, Sankt Augustin, 2025, pp. 478–483.'
conference:
end_date: 2025-11-28
location: Dresden
name: '43. Vortrags- und Diskussionstagung "Werkstoffprüfung 2025": Werkstoffe und
Bauteile auf dem Prüfstand'
start_date: 2025-11-27
corporate_editor:
- Deutsche Gesellschaft für Materialkunde e.V. (DGM)
date_created: 2025-12-10T13:22:14Z
date_updated: 2025-12-11T08:21:34Z
department:
- _id: '630'
editor:
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
extern: '1'
keyword:
- Clinchen
- Mehrfachanordnung
- Torsionsprüfung
- Tragfähigkeit
language:
- iso: ger
page: 478 - 483
place: Sankt Augustin
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '131'
name: TRR 285 - Project Area A
- _id: '138'
name: TRR 285 - Subproject A04
- _id: '132'
name: TRR 285 - Project Area B
- _id: '140'
name: TRR 285 - Subproject B01
publication: 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025
publication_identifier:
isbn:
- 978-3-88355-454-9
publication_status: published
quality_controlled: '1'
status: public
title: Modifizierter Torsionsversuch zur Untersuchung des Tragverhaltens von Clinchpunktmehrfachanordnungen
type: conference
user_id: '104464'
year: '2025'
...
---
_id: '62724'
abstract:
- lang: ger
text: Durch eine zunehmende Verbreitung von Clinchverbindungen in industriellen
Anwendungen spielt die Zuverlässigkeit der Fügeverbindung eine immer größere Rolle.
Insbesondere Mehrfachanordnungen von Clinchpunkten wurden bisher nur selten untersucht.
In der vorliegenden Arbeit wird die Zuverlässigkeit von gefügten Proben mit einer
Mehrfachanordnung von Clinchpunkten unter zyklischer Beanspruchung untersucht.
Ziel ist es, die Wechselwirkung benachbarter Clinchpunkte und deren Einfluss auf
die Ermüdungslebensdauer zu untersuchen. Dazu wurden Proben mit variierenden Fügepunktabständen
hergestellt und in Versuchsreihen zyklisch belastet. Die Resultate zeigen, dass
die räumliche Anordnung der Clinchpunkte das Ermüdungsverhalten beeinflusst. Es
wurde festgestellt, dass bei Mehrfachanordnungen sowohl der Fügepunktabstand als
auch der Abstand der Fügepunkte zum Bauteilrand in Belastungsrichtung einen Einflussfaktor
darstellen. Die vorliegende Arbeit leistet somit einen Beitrag zur Lebensdauervorhersage
gefügter Strukturen und bildet eine Grundlage für weiterführende Untersuchungen
zu Gestaltungsempfehlungen.
author:
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Katharina
full_name: Hollmer, Katharina
last_name: Hollmer
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wolf E, Hollmer K, Zimmermann M, Brosius A. Untersuchung der Zuverlässigkeit
gefügter Proben mit einer Mehrfachanordnung von Clinchpunkten unter zyklischer
Beanspruchung. In: Zimmermann M, ed. 43. Vortrags- und Diskussionstagung Werkstoffprüfung
2025. Deutsche Gesellschaft für Materialkunde e.V. (DGM); 2025:317-322.'
apa: Wolf, E., Hollmer, K., Zimmermann, M., & Brosius, A. (2025). Untersuchung
der Zuverlässigkeit gefügter Proben mit einer Mehrfachanordnung von Clinchpunkten
unter zyklischer Beanspruchung. In M. Zimmermann (Ed.), 43. Vortrags- und Diskussionstagung
Werkstoffprüfung 2025 (pp. 317–322). Deutsche Gesellschaft für Materialkunde
e.V. (DGM).
bibtex: '@inproceedings{Wolf_Hollmer_Zimmermann_Brosius_2025, title={Untersuchung
der Zuverlässigkeit gefügter Proben mit einer Mehrfachanordnung von Clinchpunkten
unter zyklischer Beanspruchung}, booktitle={43. Vortrags- und Diskussionstagung
Werkstoffprüfung 2025}, publisher={Deutsche Gesellschaft für Materialkunde e.V.
(DGM)}, author={Wolf, Eugen and Hollmer, Katharina and Zimmermann, Martina and
Brosius, Alexander}, editor={Zimmermann, Martina}, year={2025}, pages={317–322}
}'
chicago: Wolf, Eugen, Katharina Hollmer, Martina Zimmermann, and Alexander Brosius.
“Untersuchung der Zuverlässigkeit gefügter Proben mit einer Mehrfachanordnung
von Clinchpunkten unter zyklischer Beanspruchung.” In 43. Vortrags- und Diskussionstagung
Werkstoffprüfung 2025, edited by Martina Zimmermann, 317–22. Deutsche Gesellschaft
für Materialkunde e.V. (DGM), 2025.
ieee: E. Wolf, K. Hollmer, M. Zimmermann, and A. Brosius, “Untersuchung der Zuverlässigkeit
gefügter Proben mit einer Mehrfachanordnung von Clinchpunkten unter zyklischer
Beanspruchung,” in 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025,
Dresden, 2025, pp. 317–322.
mla: Wolf, Eugen, et al. “Untersuchung der Zuverlässigkeit gefügter Proben mit einer
Mehrfachanordnung von Clinchpunkten unter zyklischer Beanspruchung.” 43. Vortrags-
und Diskussionstagung Werkstoffprüfung 2025, edited by Martina Zimmermann,
Deutsche Gesellschaft für Materialkunde e.V. (DGM), 2025, pp. 317–22.
short: 'E. Wolf, K. Hollmer, M. Zimmermann, A. Brosius, in: M. Zimmermann (Ed.),
43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, Deutsche Gesellschaft
für Materialkunde e.V. (DGM), 2025, pp. 317–322.'
conference:
end_date: 2025-11-26
location: Dresden
name: '43. Vortrags- und Diskussionstagung "Werkstoffprüfung 2025": Werkstoffe und
Bauteile auf dem Prüfstand'
start_date: 2025-11-25
date_created: 2025-12-01T13:06:17Z
date_updated: 2025-12-11T08:21:38Z
department:
- _id: '630'
editor:
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
keyword:
- Clinchverbindungen
- Zyklische Beanspruchung
- Versagensverhalten
language:
- iso: ger
page: 317 - 322
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: TRR 285 - Project Area B
- _id: '140'
name: TRR 285 - Subproject B01
- _id: '141'
name: TRR 285 - Subproject B02
publication: 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025
publication_identifier:
isbn:
- 978-3-88355-454-9
publication_status: published
publisher: Deutsche Gesellschaft für Materialkunde e.V. (DGM)
quality_controlled: '1'
status: public
title: Untersuchung der Zuverlässigkeit gefügter Proben mit einer Mehrfachanordnung
von Clinchpunkten unter zyklischer Beanspruchung
type: conference
user_id: '104464'
year: '2025'
...
---
_id: '60198'
abstract:
- lang: eng
text: Abstract. The growing significance of lightweight design, reveals
drawbacks of conventional joining processes such as welding, which are known to
consume a considerable amount of energy. This fosters the use of mechanical joining
processes including clinching. However, the lack of universally applicable design
methods results in a cost- and time-intensive design process. The utilization
of machine learning methods can overcome these drawbacks. To ensure a reliable
clinch joint design, inherent uncertainties of the design parameter such as tool
deviations need to be considered in the design process. Varying distributions
of design parameters, due to changes in the manufacturing process, can lead to
high-computational effort in recalculating the resulting clinch joint properties
with numerical simulations. Current metamodel-based methods for consideration
of inherent uncertainties within the design parameters do not investigate the
transferability of metamodels to different distributions of design parameters,
which can lead to incorrect predictions. Therefore, this contribution investigates
the performance of several metamodels on differently distributed design parameters.
The obtained results indicate that metamodels demonstrate the best performance
when training and evaluation distributions are identical and that polynomial regression
models perform best on disparate distributions, when trained on uniform distributions.
author:
- first_name: Jonathan-Markus
full_name: Einwag, Jonathan-Markus
last_name: Einwag
- first_name: Yannik
full_name: Mayer, Yannik
last_name: Mayer
- first_name: Stefan
full_name: Goetz, Stefan
last_name: Goetz
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
citation:
ama: 'Einwag J-M, Mayer Y, Goetz S, Wartzack S. Impact of the parameter distribution
on the predictive quality of metamodels for clinch joint properties. In: Materials
Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-35'
apa: Einwag, J.-M., Mayer, Y., Goetz, S., & Wartzack, S. (2025). Impact of the
parameter distribution on the predictive quality of metamodels for clinch joint
properties. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-35
bibtex: '@inproceedings{Einwag_Mayer_Goetz_Wartzack_2025, title={Impact of the parameter
distribution on the predictive quality of metamodels for clinch joint properties},
volume={52}, DOI={10.21741/9781644903551-35},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Einwag, Jonathan-Markus and Mayer, Yannik and Goetz, Stefan and
Wartzack, Sandro}, year={2025} }'
chicago: Einwag, Jonathan-Markus, Yannik Mayer, Stefan Goetz, and Sandro Wartzack.
“Impact of the Parameter Distribution on the Predictive Quality of Metamodels
for Clinch Joint Properties.” In Materials Research Proceedings, Vol. 52.
Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-35.
ieee: 'J.-M. Einwag, Y. Mayer, S. Goetz, and S. Wartzack, “Impact of the parameter
distribution on the predictive quality of metamodels for clinch joint properties,”
in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-35.'
mla: Einwag, Jonathan-Markus, et al. “Impact of the Parameter Distribution on the
Predictive Quality of Metamodels for Clinch Joint Properties.” Materials Research
Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-35.
short: 'J.-M. Einwag, Y. Mayer, S. Goetz, S. Wartzack, in: Materials Research Proceedings,
Materials Research Forum LLC, 2025.'
date_created: 2025-06-12T15:03:22Z
date_updated: 2025-06-12T15:06:41Z
doi: 10.21741/9781644903551-35
intvolume: ' 52'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Impact of the parameter distribution on the predictive quality of metamodels
for clinch joint properties
type: conference
user_id: '107109'
volume: 52
year: '2025'
...
---
_id: '59873'
abstract:
- lang: eng
text: This paper focuses on the failure behavior of clinched specimens with various
stiffnesses under shear tensile loading. The primary objective is to assess the
influence of the specimen stiffness with an arrangement of clinched joints. The
specimen stiffness depends on several variables. In addition to the material selection,
the specific choice of geometry and the design of the clinched joints must also
be taken into account. A number of experiments was conducted to investigate the
failure behavior of specimens with an arrangement of three clinched joints under
shear tensile loading. These configurations were subjected to shear tensile tests,
with force displacement curves recorded for each specimen to provide a detailed
characterization of their structural response. The stiffness is modified by altering
the specimen width, which has marginal impact on the maximum force. The experimental
findings indicate that reducing the specimen stiffness results in a shift in the
type of stress, with the failure behavior becoming increasingly influenced by
bending stress. These results offer important insights for the design of clinched
joint assemblies, indicating that it is feasible to achieve the desired properties
by changing the specimen stiffness.
article_number: '01080'
author:
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wolf E, Brosius A. Investigation failure behavior in the shear tensile test
with variety of specimen stiffness. In: MATEC Web of Conferences. Vol 408.
EDP Sciences; 2025. doi:10.1051/matecconf/202540801080'
apa: Wolf, E., & Brosius, A. (2025). Investigation failure behavior in the shear
tensile test with variety of specimen stiffness. MATEC Web of Conferences,
408, Article 01080. https://doi.org/10.1051/matecconf/202540801080
bibtex: '@inproceedings{Wolf_Brosius_2025, title={Investigation failure behavior
in the shear tensile test with variety of specimen stiffness}, volume={408}, DOI={10.1051/matecconf/202540801080},
number={01080}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Wolf, Eugen and Brosius, Alexander}, year={2025} }'
chicago: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in
the Shear Tensile Test with Variety of Specimen Stiffness.” In MATEC Web of
Conferences, Vol. 408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801080.
ieee: 'E. Wolf and A. Brosius, “Investigation failure behavior in the shear tensile
test with variety of specimen stiffness,” in MATEC Web of Conferences,
Lisbon, 2025, vol. 408, doi: 10.1051/matecconf/202540801080.'
mla: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in the
Shear Tensile Test with Variety of Specimen Stiffness.” MATEC Web of Conferences,
vol. 408, 01080, EDP Sciences, 2025, doi:10.1051/matecconf/202540801080.
short: 'E. Wolf, A. Brosius, in: MATEC Web of Conferences, EDP Sciences, 2025.'
conference:
end_date: 2025-06-05
location: Lisbon
name: 44th Conference of the International Deep Drawing Research Group
start_date: 2025-06-01
date_created: 2025-05-13T05:41:58Z
date_updated: 2025-06-23T07:25:21Z
department:
- _id: '630'
doi: 10.1051/matecconf/202540801080
intvolume: ' 408'
keyword:
- Joining
- Sheet Metal
- Stiffness
- Clinching
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
status: public
title: Investigation failure behavior in the shear tensile test with variety of specimen
stiffness
type: conference
user_id: '104464'
volume: 408
year: '2025'
...
---
_id: '59485'
abstract:
- lang: eng
text: This paper focuses on the failure behavior of specimens with various configurations
of clinched joints under shear tensile loading. The primary objective is to assess
the influence of the joining direction and the spatial arrangement of clinched
joints on their mechanical performance. A number of experiments was conducted,
focusing on three clinched joints arranged in different configurations, each varying
in terms of joining direction and spacing. These configurations were subjected
to shear tensile tests, with force-displacement curves recorded for each sample
to provide a detailed characterization of their structural response. The experimental
findings indicate that the specific arrangement of the clinched joints, in terms
of joining direction, has a marginal impact on the overall failure behavior. This
suggests that intricate modifications to the joining direction are unnecessary
to achieve improved mechanical performance in such applications. These results
offer valuable insights for the design of clinched joint assemblies, indicating
that simplified joining strategies may suffice without compromising structural
integrity under shear loading.
author:
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Wolf E, Brosius A. Investigation failure behavior in the shear tensile test
with respect to the arrangements of clinched joints. In: Materials Research
Proceedings. Vol 52. Materials Research Forum LLC; 2025:86-92. doi:10.21741/9781644903551-11'
apa: Wolf, E., & Brosius, A. (2025). Investigation failure behavior in the shear
tensile test with respect to the arrangements of clinched joints. Materials
Research Proceedings, 52, 86–92. https://doi.org/10.21741/9781644903551-11
bibtex: '@inproceedings{Wolf_Brosius_2025, title={Investigation failure behavior
in the shear tensile test with respect to the arrangements of clinched joints},
volume={52}, DOI={10.21741/9781644903551-11},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Wolf, Eugen and Brosius, Alexander}, year={2025}, pages={86–92}
}'
chicago: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in
the Shear Tensile Test with Respect to the Arrangements of Clinched Joints.” In
Materials Research Proceedings, 52:86–92. Materials Research Forum LLC,
2025. https://doi.org/10.21741/9781644903551-11.
ieee: 'E. Wolf and A. Brosius, “Investigation failure behavior in the shear tensile
test with respect to the arrangements of clinched joints,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 86–92, doi: 10.21741/9781644903551-11.'
mla: Wolf, Eugen, and Alexander Brosius. “Investigation Failure Behavior in the
Shear Tensile Test with Respect to the Arrangements of Clinched Joints.” Materials
Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, pp. 86–92,
doi:10.21741/9781644903551-11.
short: 'E. Wolf, A. Brosius, in: Materials Research Proceedings, Materials Research
Forum LLC, 2025, pp. 86–92.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-04-10T11:28:28Z
date_updated: 2025-06-23T07:26:23Z
department:
- _id: '630'
doi: 10.21741/9781644903551-11
intvolume: ' 52'
keyword:
- Joining
- Sheet Metal
- Clinching
language:
- iso: eng
page: ' 86 - 92'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Investigation failure behavior in the shear tensile test with respect to the
arrangements of clinched joints
type: conference
user_id: '104464'
volume: 52
year: '2025'
...
---
_id: '60299'
abstract:
- lang: eng
text: Non-rotationally symmetrical joints can have different properties that can
be controlled by the joint orientation. This hypothesis is tested using a Reuleaux
triangle joint geometry. A tool design is carried out, followed by a numerical
sensitivity analysis of the tool geometry. Initial tools were manufactured for
experimental investigations and then adapted based on the findings of the sensitivity
analysis. The joints are characterized by micrographs, 3D scans, shear tensile
tests, head tensile tests and three-point bending tests and compared with a round
geometry. The analysis confirms the hypothesis. Thus, joints with adaptable properties
can be produced with one tool set.
author:
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Clemens
full_name: Acksteiner, Clemens
last_name: Acksteiner
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: Steinfelder C, Acksteiner C, Brosius A. A new joint with versatile properties
based on a Reuleaux triangle geometry. CIRP Annals. Published online 2025.
doi:10.1016/j.cirp.2025.03.002
apa: Steinfelder, C., Acksteiner, C., & Brosius, A. (2025). A new joint with
versatile properties based on a Reuleaux triangle geometry. CIRP Annals.
https://doi.org/10.1016/j.cirp.2025.03.002
bibtex: '@article{Steinfelder_Acksteiner_Brosius_2025, title={A new joint with versatile
properties based on a Reuleaux triangle geometry}, DOI={10.1016/j.cirp.2025.03.002},
journal={CIRP Annals}, publisher={Elsevier BV}, author={Steinfelder, Christian
and Acksteiner, Clemens and Brosius, Alexander}, year={2025} }'
chicago: Steinfelder, Christian, Clemens Acksteiner, and Alexander Brosius. “A New
Joint with Versatile Properties Based on a Reuleaux Triangle Geometry.” CIRP
Annals, 2025. https://doi.org/10.1016/j.cirp.2025.03.002.
ieee: 'C. Steinfelder, C. Acksteiner, and A. Brosius, “A new joint with versatile
properties based on a Reuleaux triangle geometry,” CIRP Annals, 2025, doi:
10.1016/j.cirp.2025.03.002.'
mla: Steinfelder, Christian, et al. “A New Joint with Versatile Properties Based
on a Reuleaux Triangle Geometry.” CIRP Annals, Elsevier BV, 2025, doi:10.1016/j.cirp.2025.03.002.
short: C. Steinfelder, C. Acksteiner, A. Brosius, CIRP Annals (2025).
date_created: 2025-06-23T07:47:56Z
date_updated: 2025-06-23T08:00:05Z
department:
- _id: '630'
doi: 10.1016/j.cirp.2025.03.002
keyword:
- Joining
- Forming
- Property adjustment
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
publication: CIRP Annals
publication_identifier:
issn:
- 0007-8506
publication_status: published
publisher: Elsevier BV
status: public
title: A new joint with versatile properties based on a Reuleaux triangle geometry
type: journal_article
user_id: '104464'
year: '2025'
...
---
_id: '60441'
abstract:
- lang: eng
text: Conventional mechanical joining processes are typically rigid in their tool
systems and can only react to changing process and disturbance variables to a
limited extent. At the same time, various industries are increasingly trending
towards multi-material systems consisting of parts with varying geometric and
mechanical properties. Due to the varying properties, rigid mechanical joining
processes require sampling procedures and periodic changes of tool components
or auxiliary joining parts. Consequently, research is focusing on versatile mechanical
joining processes that allow increased control by modifying the process parameters.
Two processes based on self-piercing riveting can achieve a significant increase
in process influence possibilities through a multi-linear actuator as versatile
self-piercing riveting (V-SPR) and a tumbling superimposed actuator as tumbling
self-piercing riveting (T-SPR). Initial research into V-SPR has shown that this
process can be used to achieve a higher variation in overall package thickness
by adapting the rivet geometry and using multiple linear actuators. The T-SPR
process also enables increased material flow control by means of targeted compression
of the rivet using the tumbling actuator, thereby extending the range of joints
that can be manufactured. Based on these two processes, a combination of the two
mechanisms of action is to be developed.
article_number: '01069'
author:
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Holtkamp PK, Wituschek S, Lechner M, Meschut G. Integration of multiple-linear
and tumbling kinematics into self-piercing riveting. MATEC Web of Conferences.
2025;408. doi:10.1051/matecconf/202540801069
apa: Holtkamp, P. K., Wituschek, S., Lechner, M., & Meschut, G. (2025). Integration
of multiple-linear and tumbling kinematics into self-piercing riveting. MATEC
Web of Conferences, 408, Article 01069. https://doi.org/10.1051/matecconf/202540801069
bibtex: '@article{Holtkamp_Wituschek_Lechner_Meschut_2025, title={Integration of
multiple-linear and tumbling kinematics into self-piercing riveting}, volume={408},
DOI={10.1051/matecconf/202540801069},
number={01069}, journal={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Holtkamp, Pia Katharina and Wituschek, Simon and Lechner, Michael and
Meschut, Gerson}, year={2025} }'
chicago: Holtkamp, Pia Katharina, Simon Wituschek, Michael Lechner, and Gerson Meschut.
“Integration of Multiple-Linear and Tumbling Kinematics into Self-Piercing Riveting.”
MATEC Web of Conferences 408 (2025). https://doi.org/10.1051/matecconf/202540801069.
ieee: 'P. K. Holtkamp, S. Wituschek, M. Lechner, and G. Meschut, “Integration of
multiple-linear and tumbling kinematics into self-piercing riveting,” MATEC
Web of Conferences, vol. 408, Art. no. 01069, 2025, doi: 10.1051/matecconf/202540801069.'
mla: Holtkamp, Pia Katharina, et al. “Integration of Multiple-Linear and Tumbling
Kinematics into Self-Piercing Riveting.” MATEC Web of Conferences, vol.
408, 01069, EDP Sciences, 2025, doi:10.1051/matecconf/202540801069.
short: P.K. Holtkamp, S. Wituschek, M. Lechner, G. Meschut, MATEC Web of Conferences
408 (2025).
date_created: 2025-06-27T08:27:42Z
date_updated: 2025-06-27T08:34:46Z
department:
- _id: '43'
- _id: '157'
doi: 10.1051/matecconf/202540801069
intvolume: ' 408'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Integration of multiple-linear and tumbling kinematics into self-piercing riveting
type: journal_article
user_id: '44935'
volume: 408
year: '2025'
...
---
_id: '60439'
abstract:
- lang: eng
text: Abstract. Mechanical joints are traditionally analyzed through destructive
micrograph analysis, which may compromise internal geometry and morphology, as
evidenced by radial cracks in semi-tubular self-pierce riveting. In contrast,
industrial X-ray computed tomography (XCT) offers a non-destructive method for
component diagnosis, providing volumetric insights without damaging the sample
and enabling dimensional measurement. The DFG-funded Collaborative Research Center
TRR 285 is exploring XCT's application in assessing mechanical joinability across
various joining processes and materials, particularly in multi-material systems
like steel-aluminum joints. XCT faces challenges in accurately capturing multi-material
compositions, leading to artifacts that complicate interface detection. This research
aims to validate XCT for joint investigations, yielding quantitative characteristics
that surpass those from traditional micrograph analysis.
author:
- first_name: M.
full_name: Lechner, M.
last_name: Lechner
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Matthias
full_name: Busch, Matthias
id: '83421'
last_name: Busch
orcid: https://orcid.org/0000-0002-8456-3374
- first_name: A.
full_name: Harms, A.
last_name: Harms
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: D.
full_name: Römisch, D.
last_name: Römisch
- first_name: Simon
full_name: Wituschek, Simon
id: '83423'
last_name: Wituschek
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
citation:
ama: 'Lechner M, Borgert T, Busch M, et al. Non-destructive testing in versatile
joining processes. In: Materials Research Proceedings. Vol 52. Materials
Research Forum LLC; 2025. doi:10.21741/9781644903551-12'
apa: Lechner, M., Borgert, T., Busch, M., Harms, A., Holtkamp, P. K., Römisch, D.,
Wituschek, S., & Kappe, F. (2025). Non-destructive testing in versatile joining
processes. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-12
bibtex: '@inproceedings{Lechner_Borgert_Busch_Harms_Holtkamp_Römisch_Wituschek_Kappe_2025,
title={Non-destructive testing in versatile joining processes}, volume={52}, DOI={10.21741/9781644903551-12},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lechner, M. and Borgert, Thomas and Busch, Matthias and Harms, A.
and Holtkamp, Pia Katharina and Römisch, D. and Wituschek, Simon and Kappe, Fabian},
year={2025} }'
chicago: Lechner, M., Thomas Borgert, Matthias Busch, A. Harms, Pia Katharina Holtkamp,
D. Römisch, Simon Wituschek, and Fabian Kappe. “Non-Destructive Testing in Versatile
Joining Processes.” In Materials Research Proceedings, Vol. 52. Materials
Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-12.
ieee: 'M. Lechner et al., “Non-destructive testing in versatile joining processes,”
in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-12.'
mla: Lechner, M., et al. “Non-Destructive Testing in Versatile Joining Processes.”
Materials Research Proceedings, vol. 52, Materials Research Forum LLC,
2025, doi:10.21741/9781644903551-12.
short: 'M. Lechner, T. Borgert, M. Busch, A. Harms, P.K. Holtkamp, D. Römisch, S.
Wituschek, F. Kappe, in: Materials Research Proceedings, Materials Research Forum
LLC, 2025.'
date_created: 2025-06-27T07:56:32Z
date_updated: 2025-06-27T08:17:00Z
department:
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-12
intvolume: ' 52'
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '149'
name: 'TRR 285 – C05: TRR 285 - Subproject C05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Non-destructive testing in versatile joining processes
type: conference
user_id: '44935'
volume: 52
year: '2025'
...
---
_id: '61174'
abstract:
- lang: eng
text: Abstract. Mechanical joining methods, such as clinching, are characterised
by locally large plastic deformations of the sheet metal to be joined. The majority
of the thereby inserted work is transformed into heat. The heat generation and
temperature evolution are systematically studied herein by means of thermomechanical
process simulations for joining the dual-phase steel HCT590X and the aluminium
alloy EN-AW 6014. The thermal-induced softening of the material is incorporated
by a suitable coupled thermoplastic constitutive model. It is observed how the
tools significantly and importantly contribute to the heat exchange. They reduce
peak temperature increases of 225 K (without heat transfer to tools) to less than
90 K for realistic behaviour of contact heat transfer. Overall, increases in temperature
during clinch joining can be expected to remain below 90 K for steel-steel joints
and around 50 K for aluminium-aluminium joints.
author:
- first_name: J.
full_name: Friedlein, J.
last_name: Friedlein
- first_name: P.
full_name: Steinmann, P.
last_name: Steinmann
- first_name: J.
full_name: Mergheim, J.
last_name: Mergheim
citation:
ama: 'Friedlein J, Steinmann P, Mergheim J. Influence of thermal effects on clinch
joining of sheet metal. In: Materials Research Proceedings. Vol 52. Materials
Research Forum LLC; 2025. doi:10.21741/9781644903551-22'
apa: Friedlein, J., Steinmann, P., & Mergheim, J. (2025). Influence of thermal
effects on clinch joining of sheet metal. Materials Research Proceedings,
52. https://doi.org/10.21741/9781644903551-22
bibtex: '@inproceedings{Friedlein_Steinmann_Mergheim_2025, title={Influence of thermal
effects on clinch joining of sheet metal}, volume={52}, DOI={10.21741/9781644903551-22},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Friedlein, J. and Steinmann, P. and Mergheim, J.}, year={2025} }'
chicago: Friedlein, J., P. Steinmann, and J. Mergheim. “Influence of Thermal Effects
on Clinch Joining of Sheet Metal.” In Materials Research Proceedings, Vol.
52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-22.
ieee: 'J. Friedlein, P. Steinmann, and J. Mergheim, “Influence of thermal effects
on clinch joining of sheet metal,” in Materials Research Proceedings, 2025,
vol. 52, doi: 10.21741/9781644903551-22.'
mla: Friedlein, J., et al. “Influence of Thermal Effects on Clinch Joining of Sheet
Metal.” Materials Research Proceedings, vol. 52, Materials Research Forum
LLC, 2025, doi:10.21741/9781644903551-22.
short: 'J. Friedlein, P. Steinmann, J. Mergheim, in: Materials Research Proceedings,
Materials Research Forum LLC, 2025.'
date_created: 2025-09-10T14:33:50Z
date_updated: 2025-09-10T14:37:40Z
doi: 10.21741/9781644903551-22
intvolume: ' 52'
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '131'
name: TRR 285 - Project Area A
- _id: '139'
name: TRR 285 - Subproject A05
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Influence of thermal effects on clinch joining of sheet metal
type: conference
user_id: '84990'
volume: 52
year: '2025'
...
---
_id: '59897'
abstract:
- lang: eng
text: This paper discusses the influence of joint orientation with non-rotationally
symmetric geometry, on load distribution and structural behavior. The focus is
on understanding how changes in the alignment of individual joints affect the
distribution of load, neighboring joints, and the overall performance of the component.
Lap shear specimens with multiple joints arranged in a line are analyzed to explore
these effects. Simplified models are used to model the joints in finite element
simulations, allowing for efficient yet accurate analysis of the load distribution
and structural response under varying joint orientations. Variations in joint
orientation result in measurable changes in the distribution of forces on adjacent
joints, influencing their behavior and that of the overall assembly. Experimental
validation confirms the numerical results, providing deeper insights into the
interaction between individual joints and their surroundings. This work contributes
to the development of systematic approaches for optimizing the design of components
with non-rotationally symmetric joints. The study highlights the importance of
considering directional properties of joints in designing structural components.
article_number: '01035'
author:
- first_name: Deekshith Reddy
full_name: Devulapally, Deekshith Reddy
id: '76837'
last_name: Devulapally
- first_name: Christian
full_name: Steinfelder, Christian
last_name: Steinfelder
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Devulapally DR, Steinfelder C, Tröster T, Brosius A. Impact of non-rotationally
symmetric joint orientation on neighbouring joints and component performance in
lap shear specimens. In: MATEC Web of Conferences. Vol 408. EDP Sciences;
2025. doi:10.1051/matecconf/202540801035'
apa: Devulapally, D. R., Steinfelder, C., Tröster, T., & Brosius, A. (2025).
Impact of non-rotationally symmetric joint orientation on neighbouring joints
and component performance in lap shear specimens. MATEC Web of Conferences,
408, Article 01035. https://doi.org/10.1051/matecconf/202540801035
bibtex: '@inproceedings{Devulapally_Steinfelder_Tröster_Brosius_2025, title={Impact
of non-rotationally symmetric joint orientation on neighbouring joints and component
performance in lap shear specimens}, volume={408}, DOI={10.1051/matecconf/202540801035},
number={01035}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Devulapally, Deekshith Reddy and Steinfelder, Christian and Tröster, Thomas
and Brosius, Alexander}, year={2025} }'
chicago: Devulapally, Deekshith Reddy, Christian Steinfelder, Thomas Tröster, and
Alexander Brosius. “Impact of Non-Rotationally Symmetric Joint Orientation on
Neighbouring Joints and Component Performance in Lap Shear Specimens.” In MATEC
Web of Conferences, Vol. 408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801035.
ieee: 'D. R. Devulapally, C. Steinfelder, T. Tröster, and A. Brosius, “Impact of
non-rotationally symmetric joint orientation on neighbouring joints and component
performance in lap shear specimens,” in MATEC Web of Conferences, Lisabon,Portugal,
2025, vol. 408, doi: 10.1051/matecconf/202540801035.'
mla: Devulapally, Deekshith Reddy, et al. “Impact of Non-Rotationally Symmetric
Joint Orientation on Neighbouring Joints and Component Performance in Lap Shear
Specimens.” MATEC Web of Conferences, vol. 408, 01035, EDP Sciences, 2025,
doi:10.1051/matecconf/202540801035.
short: 'D.R. Devulapally, C. Steinfelder, T. Tröster, A. Brosius, in: MATEC Web
of Conferences, EDP Sciences, 2025.'
conference:
location: Lisabon,Portugal
name: 44th Conference of the International Deep Drawing Research Group
date_created: 2025-05-14T11:28:32Z
date_updated: 2026-03-19T10:42:18Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.1051/matecconf/202540801035
intvolume: ' 408'
language:
- iso: eng
project:
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
status: public
title: Impact of non-rotationally symmetric joint orientation on neighbouring joints
and component performance in lap shear specimens
type: conference
user_id: '76837'
volume: 408
year: '2025'
...
---
_id: '61149'
abstract:
- lang: eng
text: The use of continuous fiber-reinforced thermoplastics (FRTP) in automotive
industry increases due to their excellent material properties and possibility
of rapid processing. The scale spanning heterogeneity of their material structure
and its influence on the material behavior, however, presents significant challenges
for most joining technologies, such as self-piercing riveting (SPR). During mechanical
joining, the material structure is significantly altered within and around the
joining zone, heavily influencing the material behavior. A comprehensive understanding
of the underlying phenomena of material alteration during the SPR process is essential
as basis for validating numerical simulations. This study examines the material
structure at ten stages of a step-setting test of SPR with two FRTP sheets with
glass-fiber reinforcement. Utilizing X-ray computed tomography (CT), the damage
phenomena within different areas of the setting test are analyzed three-dimensionally
and key parameters are quantified. Dominating phenomena during the penetration
of the rivet into the laminate are fiber failure (FF), interfiber failure (IFF)
and fiber bending, while delamination, fiber kinking and roving splitting are
also observed. At the final stages, the bottom layers of the second sheet collapse
and form a bulge into the cavity of the die.
author:
- first_name: Alrik
full_name: Dargel, Alrik
id: '114764'
last_name: Dargel
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: Daniel
full_name: Köhler, Daniel
id: '83408'
last_name: Köhler
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
- first_name: Robert
full_name: Kupfer, Robert
last_name: Kupfer
citation:
ama: 'Dargel A, Gröger B, Schlichter MC, et al. Local Deformation and Failure of
Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation.
In: Gomes JFS, Meguid SA, eds. Proceedings of the 8th International Conference
on Integrity-Reliability-Failure (IRF2025). FEUP; 2025. doi:10.24840/978-972-752-323-8'
apa: 'Dargel, A., Gröger, B., Schlichter, M. C., Gerritzen, J., Köhler, D., Meschut,
G., Gude, M., & Kupfer, R. (2025). Local Deformation and Failure of Composites
during Self-Piercing Riveting: A CT-Based Microstructure Investigation. In J.
F. S. Gomes & S. A. Meguid (Eds.), Proceedings of the 8th International
Conference on Integrity-Reliability-Failure (IRF2025). FEUP. https://doi.org/10.24840/978-972-752-323-8'
bibtex: '@inproceedings{Dargel_Gröger_Schlichter_Gerritzen_Köhler_Meschut_Gude_Kupfer_2025,
place={Porto}, title={Local Deformation and Failure of Composites during Self-Piercing
Riveting: A CT-Based Microstructure Investigation}, DOI={10.24840/978-972-752-323-8},
booktitle={Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025)}, publisher={FEUP}, author={Dargel, Alrik and Gröger, Benjamin and Schlichter,
Malte Christian and Gerritzen, Johannes and Köhler, Daniel and Meschut, Gerson
and Gude, Maik and Kupfer, Robert}, editor={Gomes, J.F. Silva and Meguid, Shaker
A.}, year={2025} }'
chicago: 'Dargel, Alrik, Benjamin Gröger, Malte Christian Schlichter, Johannes Gerritzen,
Daniel Köhler, Gerson Meschut, Maik Gude, and Robert Kupfer. “Local Deformation
and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure
Investigation.” In Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid. Porto: FEUP, 2025.
https://doi.org/10.24840/978-972-752-323-8.'
ieee: 'A. Dargel et al., “Local Deformation and Failure of Composites during
Self-Piercing Riveting: A CT-Based Microstructure Investigation,” in Proceedings
of the 8th International Conference on Integrity-Reliability-Failure (IRF2025),
Porto, 2025, doi: 10.24840/978-972-752-323-8.'
mla: 'Dargel, Alrik, et al. “Local Deformation and Failure of Composites during
Self-Piercing Riveting: A CT-Based Microstructure Investigation.” Proceedings
of the 8th International Conference on Integrity-Reliability-Failure (IRF2025),
edited by J.F. Silva Gomes and Shaker A. Meguid, FEUP, 2025, doi:10.24840/978-972-752-323-8.'
short: 'A. Dargel, B. Gröger, M.C. Schlichter, J. Gerritzen, D. Köhler, G. Meschut,
M. Gude, R. Kupfer, in: J.F.S. Gomes, S.A. Meguid (Eds.), Proceedings of the 8th
International Conference on Integrity-Reliability-Failure (IRF2025), FEUP, Porto,
2025.'
conference:
end_date: 2025-07-18
location: Porto
name: 8th International Conference on Integrity-Reliability-Failure (IRF2025)
start_date: 2025-07-15
date_created: 2025-09-08T11:52:45Z
date_updated: 2026-05-07T08:40:51Z
doi: 10.24840/978-972-752-323-8
editor:
- first_name: J.F. Silva
full_name: Gomes, J.F. Silva
last_name: Gomes
- first_name: Shaker A.
full_name: Meguid, Shaker A.
last_name: Meguid
keyword:
- self-piercing riveting
- computed tomography
- thermoplastic composites
- process-structure-interaction
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.researchgate.net/publication/395593556_LOCAL_DEFORMATION_AND_FAILURE_OF_COMPOSITES_DURING_SELF-PIERCING_RIVETING_A_CT_BASED_MICROSTRUCTURE_INVESTIGATION
oa: '1'
place: Porto
project:
- _id: '133'
name: TRR 285 - Project Area C
- _id: '148'
name: TRR 285 - Subproject C04
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '131'
name: TRR 285 - Project Area A
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '135'
name: TRR 285 - Subproject A01
publication: Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025)
publication_identifier:
isbn:
- '9789727523238'
publication_status: published
publisher: FEUP
status: public
title: 'Local Deformation and Failure of Composites during Self-Piercing Riveting:
A CT-Based Microstructure Investigation'
type: conference
user_id: '114764'
year: '2025'
...
---
_id: '58807'
abstract:
- lang: eng
text: "One of the most important strategies for reducing CO2 emissions in the mobility
sector is lightweight construction. In particular, the car body offers several
opportunities for weight reduction. Multi-material designs are increasingly being
applied to select the most suitable material for the respective load and ultimately
achieve synergy effects. For example, aluminium castings are used at the nodes
of a spaceframe body. Subsequently, these are joined with profiles to form the
bodyshell. To join different materials mechanical joining techniques, such as
semi-tubular self-piercing riveting, are deployed. According to the current state
of the art, cracks occur in the aluminium castings during the mechanical joining
process as a result of the high degree of deformation. Although the aluminium
casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent
castability. In particular, the ability to cast thin structural parts is enabled
by the low liquidus point of the near eutectic aluminium casting alloys.\r\nThis
study addresses the mechanical joining properties of the near eutectic aluminium
casting alloy AlSi12, depending on different microstructures. These are achieved
by annealing processes and modifying agents. Through an adapted heat treatment,
the previously lamellar morphology can be transformed into a globular morphology,
which leads to increased ductility and prevents the formation of cracks during
the self-piercing riveting (SPR). The joinability is investigated using different
die geometries, whereas the joint formation is analysed regarding crack initiation.
To evaluate the increased ductility, microstructural and mechanical tests are
performed and finally, a microstructure-joinability correlation is established."
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Safak
full_name: Yildiz, Safak
last_name: Yildiz
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'Neuser M, Holtkamp PK, Hoyer K-P, et al. Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. Published online 2025. doi:10.1177/14644207251319922'
apa: 'Neuser, M., Holtkamp, P. K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert,
M., Meschut, G., & Schaper, M. (2025). Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. 5th International Conference on Materials
Design and Applications 2024, Porto, Portugal. https://doi.org/10.1177/14644207251319922'
bibtex: '@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025,
title={Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12}, DOI={10.1177/14644207251319922},
journal={The Journal of Materials: Design and Applications, Part L}, publisher={Sage
Publications}, author={Neuser, Moritz and Holtkamp, Pia Katharina and Hoyer, Kay-Peter
and Kappe, Fabian and Yildiz, Safak and Bobbert, Mathias and Meschut, Gerson and
Schaper, Mirko}, year={2025} }'
chicago: 'Neuser, Moritz, Pia Katharina Holtkamp, Kay-Peter Hoyer, Fabian Kappe,
Safak Yildiz, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical
Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.”
The Journal of Materials: Design and Applications, Part L, 2025. https://doi.org/10.1177/14644207251319922.'
ieee: 'M. Neuser et al., “Mechanical properties and joinability of the near-eutectic
aluminium casting alloy AlSi12,” The Journal of Materials: Design and Applications,
Part L, 2025, doi: 10.1177/14644207251319922.'
mla: 'Neuser, Moritz, et al. “Mechanical Properties and Joinability of the Near-Eutectic
Aluminium Casting Alloy AlSi12.” The Journal of Materials: Design and Applications,
Part L, Sage Publications, 2025, doi:10.1177/14644207251319922.'
short: 'M. Neuser, P.K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert,
G. Meschut, M. Schaper, The Journal of Materials: Design and Applications, Part
L (2025).'
conference:
end_date: 2024-07-05
location: Porto, Portugal
name: 5th International Conference on Materials Design and Applications 2024
start_date: 2024-07-04
date_created: 2025-02-24T10:25:31Z
date_updated: 2026-05-12T12:13:31Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1177/14644207251319922
has_accepted_license: '1'
keyword:
- aluminium
- casting
- microstructure
- joinability
- self-piercing riveting
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: 'The Journal of Materials: Design and Applications, Part L'
publication_status: published
publisher: Sage Publications
quality_controlled: '1'
status: public
title: Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12
type: journal_article
user_id: '7850'
year: '2025'
...
---
_id: '60290'
abstract:
- lang: eng
text: The constantly increasing demand for climate protection and resource conservation
requires innovative and versatile joining processes that improve adaptability
to the joining task and robustness to enable flexible manufacturing on a production
line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed.
Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN
AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard
to the binding mechanisms form closure and force closure using micrographs, non-destructive
resistance measurements and destructive torsion tests. For this purpose, a new
sample geometry was defined, and the methods were adapted to the SPR process variants.
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms
depending on versatile process variants of self-piercing riveting. In: Meschut
G, Bobbert M, Duflou J, et al., eds. Materials Research Proceedings. Vol
52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:10.21741/9781644903551-13'
apa: Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner,
M., & Schmale, H. C. (2025). Analysis of the binding mechanisms depending
on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert,
J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, & F. Micari
(Eds.), Materials Research Proceedings (Vol. 52, pp. 101–108). Materials
Research Forum LLC. https://doi.org/10.21741/9781644903551-13
bibtex: '@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025,
place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding
mechanisms depending on versatile process variants of self-piercing riveting},
volume={52}, DOI={10.21741/9781644903551-13},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon
and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans
Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and
Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion
and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025}
}'
chicago: 'Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert,
Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the
Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.”
In Materials Research Proceedings, edited by Gerson Meschut, Mathias Bobbert,
Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein,
and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research
Forum LLC, 2025. https://doi.org/10.21741/9781644903551-13.'
ieee: 'S. Lüder et al., “Analysis of the binding mechanisms depending on
versatile process variants of self-piercing riveting,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 101–108, doi: 10.21741/9781644903551-13.'
mla: Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile
Process Variants of Self-Piercing Riveting.” Materials Research Proceedings,
edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025,
pp. 101–08, doi:10.21741/9781644903551-13.
short: 'S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner,
H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F.
Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials
Research Forum LLC, Millersville, 2025, pp. 101–108.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-06-20T10:13:22Z
date_updated: 2026-05-12T12:12:36Z
department:
- _id: '630'
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-13
editor:
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Joost
full_name: Duflou, Joost
last_name: Duflou
- first_name: Livan
full_name: Fratini, Livan
last_name: Fratini
- first_name: Hinnerk
full_name: Hagenah, Hinnerk
last_name: Hagenah
- first_name: Paulo A. F.
full_name: Martins, Paulo A. F.
last_name: Martins
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Fabrizio
full_name: Micari, Fabrizio
last_name: Micari
extern: '1'
intvolume: ' 52'
keyword:
- Joining
- Self-Piercing Riveting
- Sheet Metal
language:
- iso: eng
page: 101 - 108
place: Millersville
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
series_title: Sheet Metal 2025
status: public
title: Analysis of the binding mechanisms depending on versatile process variants
of self-piercing riveting
type: conference
user_id: '7850'
volume: 52
year: '2025'
...
---
_id: '63662'
abstract:
- lang: eng
text: The accurate prediction of crack initiation and propagation is essential for
assessing the structural integrity of mechanically joined components and other
complex assemblies. To overcome the limitations of existing finite element tools,
a modular Python framework has been developed to automate three-dimensional crack
growth simulations. The program combines geometric reconstruction, adaptive remeshing,
and the numerical evaluation of fracture mechanics parameters within a single,
fully automated workflow. The framework builds on open-source components and remains
solver-independent, enabling straightforward integration with commercial or research
finite element codes. A dedicated sequence of modules performs all required steps,
from mesh separation and crack insertion to local submodeling, stress and displacement
mapping, and iterative crack-front update, without manual interaction. The methodology
was verified using a mini-compact tension (Mini-CT) specimen as a benchmark case.
The numerical results demonstrate the accurate reproduction of stress intensity
factors and energy release rates while achieving high computational efficiency
through localized refinement. The developed approach provides a robust basis for
crack growth simulations of geometrically complex or residual stress-affected
structures. Its high degree of automation and flexibility makes it particularly
suited for analyzing cracks in clinched and riveted joints, supporting the predictive
design and durability assessment of joined lightweight structures.
article_number: '384'
author:
- first_name: Sven
full_name: Krome, Sven
id: '57245'
last_name: Krome
- first_name: Tobias
full_name: Duffe, Tobias
id: '41322'
last_name: Duffe
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Krome S, Duffe T, Kullmer G, Schramm B, Ostwald R. Validation and Verification
of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. Applied
Sciences. 2025;16(1). doi:10.3390/app16010384
apa: Krome, S., Duffe, T., Kullmer, G., Schramm, B., & Ostwald, R. (2025). Validation
and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.
Applied Sciences, 16(1), Article 384. https://doi.org/10.3390/app16010384
bibtex: '@article{Krome_Duffe_Kullmer_Schramm_Ostwald_2025, title={Validation and
Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D},
volume={16}, DOI={10.3390/app16010384},
number={1384}, journal={Applied Sciences}, publisher={MDPI AG}, author={Krome,
Sven and Duffe, Tobias and Kullmer, Gunter and Schramm, Britta and Ostwald, Richard},
year={2025} }'
chicago: Krome, Sven, Tobias Duffe, Gunter Kullmer, Britta Schramm, and Richard
Ostwald. “Validation and Verification of Novel Three-Dimensional Crack Growth
Simulation Software GmshCrack3D.” Applied Sciences 16, no. 1 (2025). https://doi.org/10.3390/app16010384.
ieee: 'S. Krome, T. Duffe, G. Kullmer, B. Schramm, and R. Ostwald, “Validation and
Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D,”
Applied Sciences, vol. 16, no. 1, Art. no. 384, 2025, doi: 10.3390/app16010384.'
mla: Krome, Sven, et al. “Validation and Verification of Novel Three-Dimensional
Crack Growth Simulation Software GmshCrack3D.” Applied Sciences, vol. 16,
no. 1, 384, MDPI AG, 2025, doi:10.3390/app16010384.
short: S. Krome, T. Duffe, G. Kullmer, B. Schramm, R. Ostwald, Applied Sciences
16 (2025).
date_created: 2026-01-20T08:47:40Z
date_updated: 2026-05-12T12:46:22Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.3390/app16010384
intvolume: ' 16'
issue: '1'
language:
- iso: eng
project:
- _id: '132'
name: TRR 285 - Project Area B
- _id: '143'
name: TRR 285 - Subproject B04
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Applied Sciences
publication_identifier:
issn:
- 2076-3417
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Validation and Verification of Novel Three-Dimensional Crack Growth Simulation
Software GmshCrack3D
type: journal_article
user_id: '7850'
volume: 16
year: '2025'
...
---
_id: '61822'
abstract:
- lang: eng
text: The effect of corrosion on mechanically joined components is not well understood.
While recent research shows that a brief exposure of clinched specimens to a salt
spray environment improves the specimens’ fatigue life, other research shows a
decrease in load bearing capabilities with increasing corrosion times. These studies
primarily focus on galvanic corrosion. It is not entirely clear how other corrosion
phenomena, such as pitting corrosion, affect the fatigue life of clinched joints.
In this work, a numerical model is used, which is able to simulate corrosion pit
growth in EN AW-6014. The experimental polarization data of EN AW-6014 are used
directly in the calculation of the interface kinetics parameter of the model.
author:
- first_name: Sven
full_name: Harzheim, Sven
last_name: Harzheim
- first_name: Chin
full_name: Chen, Chin
last_name: Chen
- first_name: Katharina
full_name: Hollmer, Katharina
last_name: Hollmer
- first_name: Martin
full_name: Hofmann, Martin
last_name: Hofmann
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
- first_name: Thomas
full_name: Wallmersperger, Thomas
last_name: Wallmersperger
citation:
ama: Harzheim S, Chen C, Hollmer K, Hofmann M, Zimmermann M, Wallmersperger T. Numerical
investigation of pitting corrosion in clinched joints. Acta Mechanica.
Published online 2025. doi:10.1007/s00707-025-04248-2
apa: Harzheim, S., Chen, C., Hollmer, K., Hofmann, M., Zimmermann, M., & Wallmersperger,
T. (2025). Numerical investigation of pitting corrosion in clinched joints. Acta
Mechanica. https://doi.org/10.1007/s00707-025-04248-2
bibtex: '@article{Harzheim_Chen_Hollmer_Hofmann_Zimmermann_Wallmersperger_2025,
title={Numerical investigation of pitting corrosion in clinched joints}, DOI={10.1007/s00707-025-04248-2},
journal={Acta Mechanica}, publisher={Springer Science and Business Media LLC},
author={Harzheim, Sven and Chen, Chin and Hollmer, Katharina and Hofmann, Martin
and Zimmermann, Martina and Wallmersperger, Thomas}, year={2025} }'
chicago: Harzheim, Sven, Chin Chen, Katharina Hollmer, Martin Hofmann, Martina Zimmermann,
and Thomas Wallmersperger. “Numerical Investigation of Pitting Corrosion in Clinched
Joints.” Acta Mechanica, 2025. https://doi.org/10.1007/s00707-025-04248-2.
ieee: 'S. Harzheim, C. Chen, K. Hollmer, M. Hofmann, M. Zimmermann, and T. Wallmersperger,
“Numerical investigation of pitting corrosion in clinched joints,” Acta Mechanica,
2025, doi: 10.1007/s00707-025-04248-2.'
mla: Harzheim, Sven, et al. “Numerical Investigation of Pitting Corrosion in Clinched
Joints.” Acta Mechanica, Springer Science and Business Media LLC, 2025,
doi:10.1007/s00707-025-04248-2.
short: S. Harzheim, C. Chen, K. Hollmer, M. Hofmann, M. Zimmermann, T. Wallmersperger,
Acta Mechanica (2025).
date_created: 2025-10-13T15:17:35Z
date_updated: 2026-05-12T12:56:55Z
doi: 10.1007/s00707-025-04248-2
language:
- iso: eng
project:
- _id: '141'
name: TRR 285 - Subproject B02
- _id: '142'
name: TRR 285 - Subproject B03
- _id: '132'
name: TRR 285 - Project Area B
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Acta Mechanica
publication_identifier:
issn:
- 0001-5970
- 1619-6937
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Numerical investigation of pitting corrosion in clinched joints
type: journal_article
user_id: '7850'
year: '2025'
...
---
_id: '60285'
abstract:
- lang: eng
text: This paper examines the impact of a rotationally superimposed punch stroke
on the binding mechanisms of clinched joints of aluminum sheets. As part of the
development of a method for ensuring the versatility of clinching, an additional
rotational movement of the punch was introduced as a control variable to influence
friction in the mechanical joining process. The effect of rotational superimposition
on the force-displacement curve of the clinching processes was investigated using
four test variants with different kinematics. The primary objective was to evaluate
the binding mechanisms that maintain the integrity of the clinched joint. To evaluate
the force closure of the resulting joint, two testing methods were employed throughout
the course of the research, non-destructive resistance measurement using four-wire
sensing method and destructive torsion testing. A crucial factor influencing the
efficacy of the process is surface cleanliness, as contaminants between joining
partners can impede the effectiveness of the clinched joint. Therefore, all specimens
were meticulously cleaned prior to experimentation. This method exhibits promising
potential in creating clinched joints that align with the demands of flexible
manufacturing environments.
article_number: '01086'
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Lüder S, Wolf E, Schmale HC, Brosius A. Investigation of the impact of a rotationally
superimposed punch stroke on the binding mechanisms of a clinched joint. In: MATEC
Web of Conferences. Vol 408. EDP Sciences; 2025. doi:10.1051/matecconf/202540801086'
apa: Lüder, S., Wolf, E., Schmale, H. C., & Brosius, A. (2025). Investigation
of the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint. MATEC Web of Conferences, 408, Article 01086.
https://doi.org/10.1051/matecconf/202540801086
bibtex: '@inproceedings{Lüder_Wolf_Schmale_Brosius_2025, title={Investigation of
the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint}, volume={408}, DOI={10.1051/matecconf/202540801086},
number={01086}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Lüder, Stephan and Wolf, Eugen and Schmale, Hans Christian and Brosius,
Alexander}, year={2025} }'
chicago: Lüder, Stephan, Eugen Wolf, Hans Christian Schmale, and Alexander Brosius.
“Investigation of the Impact of a Rotationally Superimposed Punch Stroke on the
Binding Mechanisms of a Clinched Joint.” In MATEC Web of Conferences, Vol.
408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801086.
ieee: 'S. Lüder, E. Wolf, H. C. Schmale, and A. Brosius, “Investigation of the impact
of a rotationally superimposed punch stroke on the binding mechanisms of a clinched
joint,” in MATEC Web of Conferences, Lisbon, 2025, vol. 408, doi: 10.1051/matecconf/202540801086.'
mla: Lüder, Stephan, et al. “Investigation of the Impact of a Rotationally Superimposed
Punch Stroke on the Binding Mechanisms of a Clinched Joint.” MATEC Web of Conferences,
vol. 408, 01086, EDP Sciences, 2025, doi:10.1051/matecconf/202540801086.
short: 'S. Lüder, E. Wolf, H.C. Schmale, A. Brosius, in: MATEC Web of Conferences,
EDP Sciences, 2025.'
conference:
end_date: 2025-06-05
location: Lisbon
name: '44th Conference of the International Deep Drawing Research Group (IDDRG 2025) '
start_date: 2025-06-01
date_created: 2025-06-20T06:57:16Z
date_updated: 2026-05-12T13:08:56Z
department:
- _id: '630'
doi: 10.1051/matecconf/202540801086
extern: '1'
intvolume: ' 408'
keyword:
- Joining
- Sheet Metal
- Tribology
- Clinching
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Investigation of the impact of a rotationally superimposed punch stroke on
the binding mechanisms of a clinched joint
type: conference
user_id: '7850'
volume: 408
year: '2025'
...
---
_id: '59878'
abstract:
- lang: eng
text: Abstract. In the development of advanced lightweight automotive solutions,
self-piercing riveting (SPR) offers the possibility of joining multi-material
structures to fulfil a wide variety of requirements. With regard to the entire
process chain, production-related pre-deformations of the parts to be joined can
influence the geometric shape and load capacity of SPR joints. Various studies
have investigated the influence of pre-stretched sheet materials, in the sense
of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching
sheet metals on the formation of their geometrical characteristics and the shear-tensile
strength of SPR processes was observed [1]. Pre-rolled semi-finished products
are also joined together in mixed material automotive structures, e.g. tailor
rolled blanks. This work aims to investigate the influence of pre-rolled joining
parts on the geometric formation and load-carrying capacity of SPR joints. For
this purpose, sheets of metal are cold-formed using a rolling process to induce
a defined strain-hardening state in the material and then joined in various combinations.
As the degree of deformation increases, the rolling of samples can lead to minimal
accumulation of damage in the sheet materials, which can influence the joint behaviour.
The rolling process, as well as the subsequent joining process, are also investigated
by FEM. The influence of pre-rolled semi-finished products on the strength of
the SPR joints is investigated.
author:
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Özcan
full_name: Harabati, Özcan
last_name: Harabati
- first_name: Jean-Patrick
full_name: Ludwig, Jean-Patrick
id: '76631'
last_name: Ludwig
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints. In:
Materials Research Proceedings. Vol 54. Materials Research Forum LLC; 2025.
doi:10.21741/9781644903599-148'
apa: Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R.,
Bobbert, M., & Meschut, G. (2025). Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints. Materials
Research Proceedings, 54. https://doi.org/10.21741/9781644903599-148
bibtex: '@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025,
place={Paestum}, title={Experimental and numerical investigation of the influence
of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={10.21741/9781644903599-148},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick
and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut,
Gerson}, year={2025} }'
chicago: 'Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max
Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental
and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation
on SPR Joints.” In Materials Research Proceedings, Vol. 54. Paestum: Materials
Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-148.'
ieee: 'M. C. Schlichter et al., “Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints,” in
Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-148.'
mla: Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation
of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” Materials
Research Proceedings, vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-148.
short: 'M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert,
G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
Paestum, 2025.'
date_created: 2025-05-13T06:54:20Z
date_updated: 2026-05-13T13:50:44Z
department:
- _id: '157'
doi: 10.21741/9781644903599-148
intvolume: ' 54'
language:
- iso: eng
place: Paestum
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Experimental and numerical investigation of the influence of rolling-induced
sheet metal deformation on SPR joints
type: conference
user_id: '61977'
volume: 54
year: '2025'
...
---
_id: '51737'
article_number: '109826'
author:
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Deborah
full_name: Weiß, Deborah
id: '45673'
last_name: Weiß
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
citation:
ama: Kullmer G, Weiß D, Schramm B. An alternative and robust formulation of the
fatigue crack growth rate curve for long cracks. Engineering Fracture Mechanics.
2024;296. doi:10.1016/j.engfracmech.2023.109826
apa: Kullmer, G., Weiß, D., & Schramm, B. (2024). An alternative and robust
formulation of the fatigue crack growth rate curve for long cracks. Engineering
Fracture Mechanics, 296, Article 109826. https://doi.org/10.1016/j.engfracmech.2023.109826
bibtex: '@article{Kullmer_Weiß_Schramm_2024, title={An alternative and robust formulation
of the fatigue crack growth rate curve for long cracks}, volume={296}, DOI={10.1016/j.engfracmech.2023.109826},
number={109826}, journal={Engineering Fracture Mechanics}, publisher={Elsevier
BV}, author={Kullmer, Gunter and Weiß, Deborah and Schramm, Britta}, year={2024}
}'
chicago: Kullmer, Gunter, Deborah Weiß, and Britta Schramm. “An Alternative and
Robust Formulation of the Fatigue Crack Growth Rate Curve for Long Cracks.” Engineering
Fracture Mechanics 296 (2024). https://doi.org/10.1016/j.engfracmech.2023.109826.
ieee: 'G. Kullmer, D. Weiß, and B. Schramm, “An alternative and robust formulation
of the fatigue crack growth rate curve for long cracks,” Engineering Fracture
Mechanics, vol. 296, Art. no. 109826, 2024, doi: 10.1016/j.engfracmech.2023.109826.'
mla: Kullmer, Gunter, et al. “An Alternative and Robust Formulation of the Fatigue
Crack Growth Rate Curve for Long Cracks.” Engineering Fracture Mechanics,
vol. 296, 109826, Elsevier BV, 2024, doi:10.1016/j.engfracmech.2023.109826.
short: G. Kullmer, D. Weiß, B. Schramm, Engineering Fracture Mechanics 296 (2024).
date_created: 2024-02-22T09:35:01Z
date_updated: 2024-02-22T09:55:31Z
department:
- _id: '143'
- _id: '630'
doi: 10.1016/j.engfracmech.2023.109826
intvolume: ' 296'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Engineering Fracture Mechanics
publication_identifier:
issn:
- 0013-7944
publication_status: published
publisher: Elsevier BV
status: public
title: An alternative and robust formulation of the fatigue crack growth rate curve
for long cracks
type: journal_article
user_id: '45673'
volume: 296
year: '2024'
...
---
_id: '53394'
author:
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Deborah
full_name: Weiß, Deborah
id: '45673'
last_name: Weiß
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
citation:
ama: 'Kullmer G, Weiß D, Schramm B. Weiterentwicklung des Exponentialansatzes zur
Beschreibung von Rissfortschrittskurven. In: Deutscher Verband für Materialforschung
und –prüfung e.V.; 2024. doi:10.48447/BR-2024-369'
apa: Kullmer, G., Weiß, D., & Schramm, B. (2024). Weiterentwicklung des Exponentialansatzes
zur Beschreibung von Rissfortschrittskurven. 56. Tagung des DVM-Arbeitskreises
Bruchmechanik und Bauteilsicherheit , Kassel. https://doi.org/10.48447/BR-2024-369
bibtex: '@inproceedings{Kullmer_Weiß_Schramm_2024, title={Weiterentwicklung des
Exponentialansatzes zur Beschreibung von Rissfortschrittskurven}, DOI={10.48447/BR-2024-369},
publisher={Deutscher Verband für Materialforschung und –prüfung e.V.}, author={Kullmer,
Gunter and Weiß, Deborah and Schramm, Britta}, year={2024} }'
chicago: Kullmer, Gunter, Deborah Weiß, and Britta Schramm. “Weiterentwicklung des
Exponentialansatzes zur Beschreibung von Rissfortschrittskurven.” Deutscher Verband
für Materialforschung und –prüfung e.V., 2024. https://doi.org/10.48447/BR-2024-369.
ieee: 'G. Kullmer, D. Weiß, and B. Schramm, “Weiterentwicklung des Exponentialansatzes
zur Beschreibung von Rissfortschrittskurven,” presented at the 56. Tagung des
DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit , Kassel, 2024, doi: 10.48447/BR-2024-369.'
mla: Kullmer, Gunter, et al. Weiterentwicklung des Exponentialansatzes zur Beschreibung
von Rissfortschrittskurven. Deutscher Verband für Materialforschung und –prüfung
e.V., 2024, doi:10.48447/BR-2024-369.
short: 'G. Kullmer, D. Weiß, B. Schramm, in: Deutscher Verband für Materialforschung
und –prüfung e.V., 2024.'
conference:
end_date: 2024-02-21
location: Kassel
name: '56. Tagung des DVM-Arbeitskreises Bruchmechanik und Bauteilsicherheit '
start_date: 2024-02-20
date_created: 2024-04-10T07:58:29Z
date_updated: 2024-04-10T08:30:45Z
department:
- _id: '143'
doi: 10.48447/BR-2024-369
language:
- iso: ger
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publisher: Deutscher Verband für Materialforschung und –prüfung e.V.
status: public
title: Weiterentwicklung des Exponentialansatzes zur Beschreibung von Rissfortschrittskurven
type: conference
user_id: '45673'
year: '2024'
...
---
_id: '54797'
abstract:
- lang: eng
text: Focusing on upcoming challenges in lightweight design, such as increasing
emission targets or novel multimaterial connections, versatile applicable and
environmentally friendly production technologies are crucial. In this context,
mechanical joining technology clinching offers a fast and energy-efficient procedure
for assembling sheet metals, being a proper alternative to established joining
methods, such as spot welding. However, the design of clinch points is a challenge,
which is partly supported by numerical or data-based approaches for optimal tool
dimensions assuring proper joint characteristics. While this is usually done for
an ideal environment, real joining processes are characterized by multiple inevitably
varying parameters, e.g. of the material, which have a significant impact on the
quality of clinch points. Therefore, this contribution addresses the current gap
by analyzing the effect of parameter variations or uncertainties on the resulting
joint characteristics and studying the impact of the nominal tool design. Thus,
an efficient meta-model-based variation simulation procedure is proposed and used
for analyzing the effect of different tool design configurations and variation
scenarios. Based on the results, it was found that varying process parameters
have a strong impact on the resulting joint characteristics, whereby the effect
significantly depends on the nominal tool design. This reveals the potential for
a robust tool design and implies that the nominal tool design and the tolerancing
of parameters should be done simultaneously for a reliable virtual joining point
design without extensive iterations and physical tests.
author:
- first_name: C
full_name: Zirngibl, C
last_name: Zirngibl
- first_name: S
full_name: Goetz, S
last_name: Goetz
- first_name: S
full_name: Wartzack, S
last_name: Wartzack
citation:
ama: 'Zirngibl C, Goetz S, Wartzack S. Influence of process variations on clinch
joint characteristics considering the effect of the nominal tool design. Proceedings
of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical
Engineering. Published online 2024. doi:10.1177/09544089241259347'
apa: 'Zirngibl, C., Goetz, S., & Wartzack, S. (2024). Influence of process variations
on clinch joint characteristics considering the effect of the nominal tool design.
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of
Process Mechanical Engineering. https://doi.org/10.1177/09544089241259347'
bibtex: '@article{Zirngibl_Goetz_Wartzack_2024, title={Influence of process variations
on clinch joint characteristics considering the effect of the nominal tool design},
DOI={10.1177/09544089241259347},
journal={Proceedings of the Institution of Mechanical Engineers, Part E: Journal
of Process Mechanical Engineering}, publisher={SAGE Publications}, author={Zirngibl,
C and Goetz, S and Wartzack, S}, year={2024} }'
chicago: 'Zirngibl, C, S Goetz, and S Wartzack. “Influence of Process Variations
on Clinch Joint Characteristics Considering the Effect of the Nominal Tool Design.”
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of
Process Mechanical Engineering, 2024. https://doi.org/10.1177/09544089241259347.'
ieee: 'C. Zirngibl, S. Goetz, and S. Wartzack, “Influence of process variations
on clinch joint characteristics considering the effect of the nominal tool design,”
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of
Process Mechanical Engineering, 2024, doi: 10.1177/09544089241259347.'
mla: 'Zirngibl, C., et al. “Influence of Process Variations on Clinch Joint Characteristics
Considering the Effect of the Nominal Tool Design.” Proceedings of the Institution
of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering,
SAGE Publications, 2024, doi:10.1177/09544089241259347.'
short: 'C. Zirngibl, S. Goetz, S. Wartzack, Proceedings of the Institution of Mechanical
Engineers, Part E: Journal of Process Mechanical Engineering (2024).'
date_created: 2024-06-18T07:00:26Z
date_updated: 2024-06-18T07:06:38Z
department:
- _id: '630'
doi: 10.1177/09544089241259347
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
publication: 'Proceedings of the Institution of Mechanical Engineers, Part E: Journal
of Process Mechanical Engineering'
publication_identifier:
issn:
- 0954-4089
- 2041-3009
publication_status: published
publisher: SAGE Publications
status: public
title: Influence of process variations on clinch joint characteristics considering
the effect of the nominal tool design
type: journal_article
user_id: '107109'
year: '2024'
...