---
_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: '62725'
abstract:
- lang: ger
text: "Aluminium-Silizium-Legierungen (AlSi) werden insbesondere bei der gießtechnischen\r\nHerstellung
von Leichtbaukomponenten für Fahrzeuge verwendet. Dieses Legierungssystem hat
hervorragende\r\nGießeigenschaften bei gleichzeitig akzeptablen mechanischen Eigenschaften.
Aufgrund des hohen\r\nSilizium-(Si)-Gehaltes, wodurch die Volumenkontraktion im
Phasenübergang von flüssig-fest nahezu\r\nunterbunden wird, neigen AlSi-Legierungen
dazu, feinere oder gröbere Si-Platten bei unterschiedlichen\r\nErstarrungsgeschwindigkeiten
zu bilden. Um die mechanischen Eigenschaften zu verbessern, werden\r\ndem Legierungssystem
in der Schmelzphase entweder Natrium (Na) oder Strontium (Sr) zugesetzt. Dies\r\nhat
zur Folge, dass sich eine fein lamellare Si-Morphologie bei der Erstarrung ausbildet;
dies kann ebenfalls\r\ndurch hohe Erstarrungsgeschwindigkeiten erreicht werden.
Ein nachfolgendes Lösungsglühen bewirkt\r\neine Sphäroidisierung der Si-Partikel
und dient der Steigerung der Duktilität. Aktuell fehlen fundierte\r\nErkenntnisse
zur Ausprägung der Si-Morphologie in Abhängigkeit der Erstarrungsgeschwindigkeit
oder\r\ninfolge einer Wärmebehandlung. Vor diesem Hintergrund werden in dieser
Studie verschiedene Behandlungsparameter\r\nin Bezug auf das Einformverhalten
der Si-Partikel mit einem bildauswertenden Verfahren\r\nevaluiert sowie unter
Bezug auf verschiedene chemische Zusammensetzungen miteinander korreliert."
- lang: eng
text: "Aluminium-silicon alloys (AlSi) are used in the casting of lightweight vehicle
components. This\r\nalloy system has excellent casting properties accompanied
by acceptable mechanical properties. Due to\r\nthe high silicon (Si) content,
which almost completely prevents volume contraction during the liquid-solid\r\nphase
transition, AlSi alloys tend to form finer or coarser Si plates at different solidification
rates. To\r\nimprove the mechanical properties, either sodium (Na) or strontium
(Sr) is added to the alloy system in\r\nthe melting phase. This results in the
formation of a fine lamellar Si morphology during solidification, which\r\ncan
also be achieved by high solidification rates. Subsequent solution annealing causes
spheroidisation\r\nof the Si particles and increases ductility. Currently, there
is a lack in scientific knowledge regarding the\r\nSi-morphology as a function
of solidification rate or as a result of heat treatment. Therefore, this study\r\nevaluates
various treatment parameters in relation to the shaping behaviour of Si particles
using an image\r\nanalysis method and correlates them with different chemical
compositions."
alternative_title:
- Image analysis method for evaluating the microstructure of AlSi-alloys
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Gerrit
full_name: Cichon, Gerrit
last_name: Cichon
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'Neuser M, Cichon G, Hoyer K-P, Schaper M. Bildauswertendes Verfahren zur Evaluierung
der Mikrostruktur von AlSi-Systemen. In: Bildauswertendes Verfahren zur Evaluierung
der Mikrostruktur von AlSi-Systemen. Vol 43. Deutsche Gesellschaft für Materialkunde
(DGM); 2025:454-459.'
apa: Neuser, M., Cichon, G., Hoyer, K.-P., & Schaper, M. (2025). Bildauswertendes
Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen. Bildauswertendes
Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, 43,
454–459.
bibtex: '@inproceedings{Neuser_Cichon_Hoyer_Schaper_2025, place={Sankt Augustin},
title={Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen},
volume={43}, booktitle={Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur
von AlSi-Systemen}, publisher={Deutsche Gesellschaft für Materialkunde (DGM)},
author={Neuser, Moritz and Cichon, Gerrit and Hoyer, Kay-Peter and Schaper, Mirko},
year={2025}, pages={454–459} }'
chicago: 'Neuser, Moritz, Gerrit Cichon, Kay-Peter Hoyer, and Mirko Schaper. “Bildauswertendes
Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen.” In Bildauswertendes
Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen, 43:454–59.
Sankt Augustin: Deutsche Gesellschaft für Materialkunde (DGM), 2025.'
ieee: M. Neuser, G. Cichon, K.-P. Hoyer, and M. Schaper, “Bildauswertendes Verfahren
zur Evaluierung der Mikrostruktur von AlSi-Systemen,” in Bildauswertendes Verfahren
zur Evaluierung der Mikrostruktur von AlSi-Systemen, Dresden, 2025, vol. 43,
pp. 454–459.
mla: Neuser, Moritz, et al. “Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur
von AlSi-Systemen.” Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur
von AlSi-Systemen, vol. 43, Deutsche Gesellschaft für Materialkunde (DGM),
2025, pp. 454–59.
short: 'M. Neuser, G. Cichon, K.-P. Hoyer, M. Schaper, in: Bildauswertendes Verfahren
zur Evaluierung der Mikrostruktur von AlSi-Systemen, Deutsche Gesellschaft für
Materialkunde (DGM), Sankt Augustin, 2025, pp. 454–459.'
conference:
end_date: 2025-11-28
location: Dresden
name: Werkstoffprüfung - 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025
start_date: 2025-11-27
date_created: 2025-12-01T13:46:42Z
date_updated: 2025-12-01T13:46:53Z
department:
- _id: '43'
- _id: '9'
- _id: '158'
- _id: '321'
intvolume: ' 43'
keyword:
- Bildauswertendes Verfahren
- Mikrostrukturanalyse
- AlSi-System
- Si-Morphologie
language:
- iso: ger
page: 454 - 459
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: '136'
name: TRR 285 - Subproject A02
publication: Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen
publication_identifier:
isbn:
- 978-3-88355-454-9
publication_status: published
publisher: Deutsche Gesellschaft für Materialkunde (DGM)
quality_controlled: '1'
status: public
title: Bildauswertendes Verfahren zur Evaluierung der Mikrostruktur von AlSi-Systemen
type: conference
user_id: '32340'
volume: 43
year: '2025'
...
---
_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: '57742'
article_type: original
author:
- 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: Robert
full_name: Beck, Robert
id: '38279'
last_name: Beck
orcid: 0000-0001-9056-4528
- 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: Böhnke M, Bielak CR, Beck R, Bobbert M, Meschut G. Development of a friction
model for the numerical simulation of clinching processes. Friction. Published
online 2024. doi:10.26599/frict.2025.9441052
apa: Böhnke, M., Bielak, C. R., Beck, R., Bobbert, M., & Meschut, G. (2024).
Development of a friction model for the numerical simulation of clinching processes.
Friction. https://doi.org/10.26599/frict.2025.9441052
bibtex: '@article{Böhnke_Bielak_Beck_Bobbert_Meschut_2024, title={Development of
a friction model for the numerical simulation of clinching processes}, DOI={10.26599/frict.2025.9441052},
journal={Friction}, publisher={Tsinghua University Press}, author={Böhnke, Max
and Bielak, Christian Roman and Beck, Robert and Bobbert, Mathias and Meschut,
Gerson}, year={2024} }'
chicago: Böhnke, Max, Christian Roman Bielak, Robert Beck, Mathias Bobbert, and
Gerson Meschut. “Development of a Friction Model for the Numerical Simulation
of Clinching Processes.” Friction, 2024. https://doi.org/10.26599/frict.2025.9441052.
ieee: 'M. Böhnke, C. R. Bielak, R. Beck, M. Bobbert, and G. Meschut, “Development
of a friction model for the numerical simulation of clinching processes,” Friction,
2024, doi: 10.26599/frict.2025.9441052.'
mla: Böhnke, Max, et al. “Development of a Friction Model for the Numerical Simulation
of Clinching Processes.” Friction, Tsinghua University Press, 2024, doi:10.26599/frict.2025.9441052.
short: M. Böhnke, C.R. Bielak, R. Beck, M. Bobbert, G. Meschut, Friction (2024).
date_created: 2024-12-11T14:45:57Z
date_updated: 2025-01-28T08:54:37Z
department:
- _id: '157'
doi: 10.26599/frict.2025.9441052
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Friction
publication_identifier:
issn:
- 2223-7690
- 2223-7704
publication_status: published
publisher: Tsinghua University Press
quality_controlled: '1'
status: public
title: Development of a friction model for the numerical simulation of clinching processes
type: journal_article
user_id: '45779'
year: '2024'
...
---
_id: '58491'
abstract:
- lang: eng
text: Similar to bulk metal forming, clinch joining is characterised by
large plastic deformations and a variety of different 3D stress states, including
severe compression. However, inherent to plastic forming is the nucleation and
growth of defects, whose detrimental effects on the material behaviour can be
described by continuum damage models and eventually lead to material failure.
As the damage evolution strongly depends on the stress state, a stress-state-dependent
model is utilised to correctly track the accumulation. To formulate and parameterise
this model, besides classical experiments, so-called modified punch tests are
also integrated herein to enhance the calibration of the failure model by capturing
a larger range of stress states and metal-forming-specific loading conditions.
Moreover, when highly ductile materials are considered, such as the dual-phase
steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong
necking and localisation might occur prior to fracture. This can alter the stress
state and affect the actual strain at failure. This influence is captured by coupling
plasticity and damage to incorporate the damage-induced softening effect. Its
relative importance is shown by conducting inverse parameter identifications to
determine damage and failure parameters for both mentioned ductile metals based
on up to 12 different experiments.
article_number: '157'
author:
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Max
full_name: Böhnke, Max
last_name: Böhnke
- first_name: Malte
full_name: Schlichter, Malte
last_name: Schlichter
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
citation:
ama: Friedlein J, Böhnke M, Schlichter M, et al. Material Parameter Identification
for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
Joining. Journal of Manufacturing and Materials Processing. 2024;8(4).
doi:10.3390/jmmp8040157
apa: Friedlein, J., Böhnke, M., Schlichter, M., Bobbert, M., Meschut, G., Mergheim,
J., & Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing
and Materials Processing, 8(4), Article 157. https://doi.org/10.3390/jmmp8040157
bibtex: '@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024,
title={Material Parameter Identification for a Stress-State-Dependent Ductile
Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={10.3390/jmmp8040157},
number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte and Bobbert,
Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024}
}'
chicago: Friedlein, Johannes, Max Böhnke, Malte Schlichter, Mathias Bobbert, Gerson
Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification
for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
Joining.” Journal of Manufacturing and Materials Processing 8, no. 4 (2024).
https://doi.org/10.3390/jmmp8040157.
ieee: 'J. Friedlein et al., “Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining,” Journal of Manufacturing
and Materials Processing, vol. 8, no. 4, Art. no. 157, 2024, doi: 10.3390/jmmp8040157.'
mla: Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing
and Materials Processing, vol. 8, no. 4, 157, MDPI AG, 2024, doi:10.3390/jmmp8040157.
short: J. Friedlein, M. Böhnke, M. Schlichter, M. Bobbert, G. Meschut, J. Mergheim,
P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).
date_created: 2025-01-31T16:59:13Z
date_updated: 2025-01-31T17:03:34Z
doi: 10.3390/jmmp8040157
intvolume: ' 8'
issue: '4'
keyword:
- ductile damage
- stress-state dependency
- failure
- parameter identification
- punch test
- clinching
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Material Parameter Identification for a Stress-State-Dependent Ductile Damage
and Failure Model Applied to Clinch Joining
type: journal_article
user_id: '84990'
volume: 8
year: '2024'
...
---
_id: '59585'
abstract:
- lang: eng
text: Similar to bulk metal forming, clinch joining is characterised by
large plastic deformations and a variety of different 3D stress states, including
severe compression. However, inherent to plastic forming is the nucleation and
growth of defects, whose detrimental effects on the material behaviour can be
described by continuum damage models and eventually lead to material failure.
As the damage evolution strongly depends on the stress state, a stress-state-dependent
model is utilised to correctly track the accumulation. To formulate and parameterise
this model, besides classical experiments, so-called modified punch tests are
also integrated herein to enhance the calibration of the failure model by capturing
a larger range of stress states and metal-forming-specific loading conditions.
Moreover, when highly ductile materials are considered, such as the dual-phase
steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong
necking and localisation might occur prior to fracture. This can alter the stress
state and affect the actual strain at failure. This influence is captured by coupling
plasticity and damage to incorporate the damage-induced softening effect. Its
relative importance is shown by conducting inverse parameter identifications to
determine damage and failure parameters for both mentioned ductile metals based
on up to 12 different experiments.
article_number: '157'
author:
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- 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: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
citation:
ama: Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification
for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
Joining. Journal of Manufacturing and Materials Processing. 2024;8(4).
doi:10.3390/jmmp8040157
apa: Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim,
J., & Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing
and Materials Processing, 8(4), Article 157. https://doi.org/10.3390/jmmp8040157
bibtex: '@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024,
title={Material Parameter Identification for a Stress-State-Dependent Ductile
Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={10.3390/jmmp8040157},
number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian
and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul},
year={2024} }'
chicago: Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert,
Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification
for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch
Joining.” Journal of Manufacturing and Materials Processing 8, no. 4 (2024).
https://doi.org/10.3390/jmmp8040157.
ieee: 'J. Friedlein et al., “Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining,” Journal of Manufacturing
and Materials Processing, vol. 8, no. 4, Art. no. 157, 2024, doi: 10.3390/jmmp8040157.'
mla: Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent
Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing
and Materials Processing, vol. 8, no. 4, 157, MDPI AG, 2024, doi:10.3390/jmmp8040157.
short: J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim,
P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).
date_created: 2025-04-15T11:07:52Z
date_updated: 2025-05-20T13:14:43Z
department:
- _id: '157'
doi: 10.3390/jmmp8040157
intvolume: ' 8'
issue: '4'
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Material Parameter Identification for a Stress-State-Dependent Ductile Damage
and Failure Model Applied to Clinch Joining
type: journal_article
user_id: '61977'
volume: 8
year: '2024'
...
---
_id: '62073'
abstract:
- lang: eng
text: A numerical modelling strategy for the direct pin pressing process
of metallic pins into continuous fibre-reinforced thermoplastic organosheets is
developed. The joining process is performed above the thermoplast’s melting temperature,
altering the initial material structure of the composite by fibre rearrangement,
which in turn influences the load-bearing capacity of the joint. Therefore, the
modelling strategy aims at predicting the resultant material structure after pin
pressing. The modelling approach considers both the textile architecture and the
process parameters (temperature, tool velocity). A sub-meso modelling framework
for the fibres based on a multi-filament approach is used. The interaction between
fibres and the thermoplastic melt, as well as the matrix flow, is modelled using
the Arbitrary Lagrangian Eulerian method. This allows for the prediction of matrix-rich
zones and fibre rearrangement around the pin. The promising results show a good
agreement of the resultant material structure in terms of compaction and fibre
volume content around the pressed pin. Characteristic parameters show an underestimation
of the laminate thickness below the pin. Moreover, an evaluation method for evaluating
the orientation changes of the virtual multi-filaments is developed and presented
to observe and assess fibre rearrangement and fibre volume content in detail during
the numerical process simulation. It can be seen that only fibres around the pin
are displaced and not in the whole molten area. Furthermore, it can be observed
in detail that the initial position of the fibres in relation to the pin determines
whether the fibres are displaced in the in-plane or out-of-plane direction.
author:
- first_name: B.
full_name: Gröger, B.
last_name: Gröger
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: A.
full_name: Hornig, A.
last_name: Hornig
- first_name: M.
full_name: Gude, M.
last_name: Gude
citation:
ama: 'Gröger B, Gerritzen J, Hornig A, Gude M. Developing a numerical modelling
strategy for metallic pin pressing processes in fibre reinforced thermoplastics
to investigate fibre rearrangement mechanisms during joining. Proceedings of
the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications. 2024;238(12):2286-2298. doi:10.1177/14644207241280035'
apa: 'Gröger, B., Gerritzen, J., Hornig, A., & Gude, M. (2024). Developing a
numerical modelling strategy for metallic pin pressing processes in fibre reinforced
thermoplastics to investigate fibre rearrangement mechanisms during joining. Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications, 238(12), 2286–2298. https://doi.org/10.1177/14644207241280035'
bibtex: '@article{Gröger_Gerritzen_Hornig_Gude_2024, title={Developing a numerical
modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics
to investigate fibre rearrangement mechanisms during joining}, volume={238}, DOI={10.1177/14644207241280035},
number={12}, journal={Proceedings of the Institution of Mechanical Engineers,
Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications},
author={Gröger, B. and Gerritzen, Johannes and Hornig, A. and Gude, M.}, year={2024},
pages={2286–2298} }'
chicago: 'Gröger, B., Johannes Gerritzen, A. Hornig, and M. Gude. “Developing a
Numerical Modelling Strategy for Metallic Pin Pressing Processes in Fibre Reinforced
Thermoplastics to Investigate Fibre Rearrangement Mechanisms during Joining.”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
Materials: Design and Applications 238, no. 12 (2024): 2286–98. https://doi.org/10.1177/14644207241280035.'
ieee: 'B. Gröger, J. Gerritzen, A. Hornig, and M. Gude, “Developing a numerical
modelling strategy for metallic pin pressing processes in fibre reinforced thermoplastics
to investigate fibre rearrangement mechanisms during joining,” Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications, vol. 238, no. 12, pp. 2286–2298, 2024, doi: 10.1177/14644207241280035.'
mla: 'Gröger, B., et al. “Developing a Numerical Modelling Strategy for Metallic
Pin Pressing Processes in Fibre Reinforced Thermoplastics to Investigate Fibre
Rearrangement Mechanisms during Joining.” Proceedings of the Institution of
Mechanical Engineers, Part L: Journal of Materials: Design and Applications,
vol. 238, no. 12, SAGE Publications, 2024, pp. 2286–98, doi:10.1177/14644207241280035.'
short: 'B. Gröger, J. Gerritzen, A. Hornig, M. Gude, Proceedings of the Institution
of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
238 (2024) 2286–2298.'
date_created: 2025-11-04T12:34:11Z
date_updated: 2026-02-27T06:45:59Z
doi: 10.1177/14644207241280035
intvolume: ' 238'
issue: '12'
language:
- iso: eng
page: 2286-2298
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '131'
name: TRR 285 - Project Area A
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications'
publication_identifier:
issn:
- 1464-4207
- 2041-3076
publication_status: published
publisher: SAGE Publications
status: public
title: Developing a numerical modelling strategy for metallic pin pressing processes
in fibre reinforced thermoplastics to investigate fibre rearrangement mechanisms
during joining
type: journal_article
user_id: '105344'
volume: 238
year: '2024'
...
---
_id: '62078'
abstract:
- lang: eng
text: 'Fiber reinforced plastics (FRP) exhibit strongly non-linear deformation behavior.
To capture this in simulations, intricate models with a variety of parameters
are typically used. The identification of values for such parameters is highly
challenging and requires in depth understanding of the model itself. Machine learning
(ML) is a promising approach for alleviating this challenge by directly predicting
parameters based on experimental results. So far, this works mostly for purely
artificial data. In this work, two approaches to generalize to experimental data
are investigated: a sequential approach, leveraging understanding of the constitutive
model and a direct, purely data driven approach. This is exemplary carried out
for a highly non-linear strain rate dependent constitutive model for the shear
behavior of FRP.The sequential model is found to work better on both artificial
and experimental data. It is capable of extracting well suited parameters from
the artificial data under realistic conditions. For the experimental data, the
model performance depends on the composition of the experimental curves, varying
between excellently suiting and reasonable predictions. Taking the expert knowledge
into account for ML-model training led to far better results than the purely data
driven approach. Robustifying the model predictions on experimental data promises
further improvement. '
author:
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Peter
full_name: Winkler, Peter
last_name: Winkler
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: 'Gerritzen J, Hornig A, Winkler P, Gude M. Direct parameter identification
for highly nonlinear strain rate dependent constitutive models using machine learning.
In: ECCM21 - Proceedings of the 21st European Conference on Composite Materials.
Vol 3. European Society for Composite Materials (ESCM); 2024:1252–1259. doi:10.60691/yj56-np80'
apa: Gerritzen, J., Hornig, A., Winkler, P., & Gude, M. (2024). Direct parameter
identification for highly nonlinear strain rate dependent constitutive models
using machine learning. ECCM21 - Proceedings of the 21st European Conference
on Composite Materials, 3, 1252–1259. https://doi.org/10.60691/yj56-np80
bibtex: '@inproceedings{Gerritzen_Hornig_Winkler_Gude_2024, title={Direct parameter
identification for highly nonlinear strain rate dependent constitutive models
using machine learning}, volume={3}, DOI={10.60691/yj56-np80},
booktitle={ECCM21 - Proceedings of the 21st European Conference on Composite Materials},
publisher={European Society for Composite Materials (ESCM)}, author={Gerritzen,
Johannes and Hornig, Andreas and Winkler, Peter and Gude, Maik}, year={2024},
pages={1252–1259} }'
chicago: Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “Direct
Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive
Models Using Machine Learning.” In ECCM21 - Proceedings of the 21st European
Conference on Composite Materials, 3:1252–1259. European Society for Composite
Materials (ESCM), 2024. https://doi.org/10.60691/yj56-np80.
ieee: 'J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “Direct parameter identification
for highly nonlinear strain rate dependent constitutive models using machine learning,”
in ECCM21 - Proceedings of the 21st European Conference on Composite Materials,
2024, vol. 3, pp. 1252–1259, doi: 10.60691/yj56-np80.'
mla: Gerritzen, Johannes, et al. “Direct Parameter Identification for Highly Nonlinear
Strain Rate Dependent Constitutive Models Using Machine Learning.” ECCM21 -
Proceedings of the 21st European Conference on Composite Materials, vol. 3,
European Society for Composite Materials (ESCM), 2024, pp. 1252–1259, doi:10.60691/yj56-np80.
short: 'J. Gerritzen, A. Hornig, P. Winkler, M. Gude, in: ECCM21 - Proceedings of
the 21st European Conference on Composite Materials, European Society for Composite
Materials (ESCM), 2024, pp. 1252–1259.'
date_created: 2025-11-04T12:47:06Z
date_updated: 2026-02-27T06:46:21Z
doi: 10.60691/yj56-np80
intvolume: ' 3'
keyword:
- Direct parameter identification
- Machine learning
- Convolutional neural networks
- Strain rate dependency
- Fiber reinforced plastics
- woven composites
- segmentation
- synthetic training data
- x-ray computed tomography
language:
- iso: eng
page: 1252–1259
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '131'
name: TRR 285 - Project Area A
publication: ECCM21 - Proceedings of the 21st European Conference on Composite Materials
publication_identifier:
isbn:
- 978-2-912985-01-9
publisher: European Society for Composite Materials (ESCM)
status: public
title: Direct parameter identification for highly nonlinear strain rate dependent
constitutive models using machine learning
type: conference
user_id: '105344'
volume: 3
year: '2024'
...
---
_id: '62076'
article_number: '113274'
author:
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Peter
full_name: Winkler, Peter
last_name: Winkler
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gerritzen J, Hornig A, Winkler P, Gude M. A methodology for direct parameter
identification for experimental results using machine learning — Real world application
to the highly non-linear deformation behavior of FRP. Computational Materials
Science. 2024;244. doi:10.1016/j.commatsci.2024.113274
apa: Gerritzen, J., Hornig, A., Winkler, P., & Gude, M. (2024). A methodology
for direct parameter identification for experimental results using machine learning
— Real world application to the highly non-linear deformation behavior of FRP.
Computational Materials Science, 244, Article 113274. https://doi.org/10.1016/j.commatsci.2024.113274
bibtex: '@article{Gerritzen_Hornig_Winkler_Gude_2024, title={A methodology for direct
parameter identification for experimental results using machine learning — Real
world application to the highly non-linear deformation behavior of FRP}, volume={244},
DOI={10.1016/j.commatsci.2024.113274},
number={113274}, journal={Computational Materials Science}, publisher={Elsevier
BV}, author={Gerritzen, Johannes and Hornig, Andreas and Winkler, Peter and Gude,
Maik}, year={2024} }'
chicago: Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “A Methodology
for Direct Parameter Identification for Experimental Results Using Machine Learning
— Real World Application to the Highly Non-Linear Deformation Behavior of FRP.”
Computational Materials Science 244 (2024). https://doi.org/10.1016/j.commatsci.2024.113274.
ieee: 'J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “A methodology for direct
parameter identification for experimental results using machine learning — Real
world application to the highly non-linear deformation behavior of FRP,” Computational
Materials Science, vol. 244, Art. no. 113274, 2024, doi: 10.1016/j.commatsci.2024.113274.'
mla: Gerritzen, Johannes, et al. “A Methodology for Direct Parameter Identification
for Experimental Results Using Machine Learning — Real World Application to the
Highly Non-Linear Deformation Behavior of FRP.” Computational Materials Science,
vol. 244, 113274, Elsevier BV, 2024, doi:10.1016/j.commatsci.2024.113274.
short: J. Gerritzen, A. Hornig, P. Winkler, M. Gude, Computational Materials Science
244 (2024).
date_created: 2025-11-04T12:37:42Z
date_updated: 2026-02-27T06:46:35Z
doi: 10.1016/j.commatsci.2024.113274
intvolume: ' 244'
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '131'
name: TRR 285 - Project Area A
publication: Computational Materials Science
publication_identifier:
issn:
- 0927-0256
publication_status: published
publisher: Elsevier BV
status: public
title: A methodology for direct parameter identification for experimental results
using machine learning — Real world application to the highly non-linear deformation
behavior of FRP
type: journal_article
user_id: '105344'
volume: 244
year: '2024'
...
---
_id: '60645'
abstract:
- lang: ger
text: Die Wandlungsfähigkeit einer Prozesskette erfordert Fügeverbindungen mit gezielt
einstellbaren mechanischen, elektrischen, thermischen oder chemischen Eigenschaften.
Dieser Beitrag beschreibt die Untersuchungen, inwiefern beim Clinchen zweier Bleche
aus der ausscheidungshärtbaren Aluminiumlegierung EN AW-6014 bereits auf Basis
der Prozessüberwachung des Kraft-Weg-Verlaufs bzw. des sich daraus ergebenden
Energieeintrags auf die mechanischen und elektrischen Eigenschaften der Fügeverbindung
geschlossen werden kann. An einer ausgewählten Fügeaufgabe werden im Stufenversuch
die gegenseitigen Abhängigkeiten der einzelnen Einflussgrößen sowie des Wärmebehandlungszustands
aufgezeigt. Dabei wird zwischen den Bindemechanismen Formschluss und Kraftschluss
unterschieden. Die Formschlusskomponente wird anhand der geometrischen Kenngrößen
wie Bodendicke, Halsdicke und Hinterschnitt in Mikroskopieuntersuchungen an Schliffbildern
und den mechanischen Eigenschaften der Fügeverbindung untersucht, die im Scherzug-
und Kopfzugversuch bestimmt werden. Dazu erfolgt zudem die Charakterisierung der
Versagensbilder. Zur Quantifizierung der Kraftschlusskomponente der Fügeverbindung
werden das Losbrechmoment im Torsionsversuch und der elektrische Widerstand mittels
Vier-Leiter-Methode ermittelt und korreliert.
author:
- first_name: Stephan
full_name: Lüder, Stephan
id: '104468'
last_name: Lüder
orcid: https://orcid.org/0000-0002-9086-3031
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Hannes
full_name: Oesterle, Hannes
last_name: Oesterle
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Kalich J, Oesterle H, Schmale HC. Prozessüberwachte Eigenschaftseinstellung
beim Clinchen der ausscheidungshärtbaren Aluminiumlegierung EN AW-6014. In: Krupp
U, Steller I, Stahlinstitut VDEh, eds. Tagung Werkstoffprüfung 2024: Werkstoffe
und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung.
; 2024:205-210.'
apa: 'Lüder, S., Kalich, J., Oesterle, H., & Schmale, H. C. (2024). Prozessüberwachte
Eigenschaftseinstellung beim Clinchen der ausscheidungshärtbaren Aluminiumlegierung
EN AW-6014. In U. Krupp, I. Steller, & Stahlinstitut VDEh (Eds.), Tagung
Werkstoffprüfung 2024: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik
– Kennwertermittlung – Schadensvermeidung (pp. 205–210).'
bibtex: '@inproceedings{Lüder_Kalich_Oesterle_Schmale_2024, place={Düsseldorf},
title={Prozessüberwachte Eigenschaftseinstellung beim Clinchen der ausscheidungshärtbaren
Aluminiumlegierung EN AW-6014}, booktitle={Tagung Werkstoffprüfung 2024: Werkstoffe
und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung},
author={Lüder, Stephan and Kalich, Jan and Oesterle, Hannes and Schmale, Hans
Christian}, editor={Krupp, Ulrich and Steller, Ingo and Stahlinstitut VDEh}, year={2024},
pages={205–210} }'
chicago: 'Lüder, Stephan, Jan Kalich, Hannes Oesterle, and Hans Christian Schmale.
“Prozessüberwachte Eigenschaftseinstellung beim Clinchen der ausscheidungshärtbaren
Aluminiumlegierung EN AW-6014.” In Tagung Werkstoffprüfung 2024: Werkstoffe
und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung,
edited by Ulrich Krupp, Ingo Steller, and Stahlinstitut VDEh, 205–10. Düsseldorf,
2024.'
ieee: 'S. Lüder, J. Kalich, H. Oesterle, and H. C. Schmale, “Prozessüberwachte Eigenschaftseinstellung
beim Clinchen der ausscheidungshärtbaren Aluminiumlegierung EN AW-6014,” in Tagung
Werkstoffprüfung 2024: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik
– Kennwertermittlung – Schadensvermeidung, Krefeld, 2024, pp. 205–210.'
mla: 'Lüder, Stephan, et al. “Prozessüberwachte Eigenschaftseinstellung beim Clinchen
der ausscheidungshärtbaren Aluminiumlegierung EN AW-6014.” Tagung Werkstoffprüfung
2024: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung
– Schadensvermeidung, edited by Ulrich Krupp et al., 2024, pp. 205–10.'
short: 'S. Lüder, J. Kalich, H. Oesterle, H.C. Schmale, in: U. Krupp, I. Steller,
Stahlinstitut VDEh (Eds.), Tagung Werkstoffprüfung 2024: Werkstoffe und Bauteile
auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung, Düsseldorf,
2024, pp. 205–210.'
conference:
end_date: 2024-12-06
location: Krefeld
name: Tagung Werkstoffprüfung 2024
start_date: 2024-12-05
corporate_editor:
- Stahlinstitut VDEh
date_created: 2025-07-18T09:01:25Z
date_updated: 2025-07-18T11:32:18Z
department:
- _id: '630'
editor:
- first_name: Ulrich
full_name: Krupp, Ulrich
last_name: Krupp
- first_name: Ingo
full_name: Steller, Ingo
last_name: Steller
extern: '1'
keyword:
- Clinchen
- Aluminium
- Stufensetzversuch
- Bindemechanismus
- Formschluss
- Kraftschluss
- Zugversuch
- Torsionsversuch
- Widerstandsmessung
language:
- iso: ger
page: 205-210
place: Düsseldorf
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
publication: 'Tagung Werkstoffprüfung 2024: Werkstoffe und Bauteile auf dem Prüfstand,
Prüftechnik – Kennwertermittlung – Schadensvermeidung'
publication_identifier:
isbn:
- 978-3-941269-97-2
publication_status: published
quality_controlled: '1'
status: public
title: Prozessüberwachte Eigenschaftseinstellung beim Clinchen der ausscheidungshärtbaren
Aluminiumlegierung EN AW-6014
type: conference
user_id: '104468'
year: '2024'
...
---
_id: '43090'
abstract:
- lang: eng
text: Abstract. The application of the mechanical joining process clinching
allows the assembly of different sheet metal materials with a wide range of material
thickness configurations, which is of interest for lightweight multi-material
structures. In order to be able to predict the clinched joint properties as a
function of the individual manufacturing steps, current studies focus on numerical
modeling of the entire clinching process chain. It is essential to be able to
take into account the influence of the joining process-induced damage on the load-bearing
capacity of the joint during the loading phase. This study presents a numerical
damage accumulation in the clinching process based on an implemented Hosford-Coulomb
failure model using a 3D clinching process model applied on the aluminum alloy
EN AW-6014 in temper T4. A correspondence of the experimentally determined failure
location with the element of the highest numerically determined damage accumulation
is shown. Moreover, the experimentally determined failure behavior is predicted
to be in agreement in the numerical loading simulation with transferred pre-damage
from the process simulation.
author:
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Bielak CR, Böhnke M, Friedlein J, et al. Numerical analysis of failure modeling
in clinching process chain simulation. In: Materials Research Proceedings.
Materials Research Forum LLC; 2023. doi:10.21741/9781644902417-33'
apa: Bielak, C. R., Böhnke, M., Friedlein, J., Bobbert, M., Mergheim, J., Steinmann,
P., & Meschut, G. (2023). Numerical analysis of failure modeling in clinching
process chain simulation. Materials Research Proceedings. SHEMET 2023.
https://doi.org/10.21741/9781644902417-33
bibtex: '@inproceedings{Bielak_Böhnke_Friedlein_Bobbert_Mergheim_Steinmann_Meschut_2023,
title={Numerical analysis of failure modeling in clinching process chain simulation},
DOI={10.21741/9781644902417-33},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Bielak, Christian Roman and Böhnke, Max and Friedlein, Johannes
and Bobbert, Mathias and Mergheim, Julia and Steinmann, Paul and Meschut, Gerson},
year={2023} }'
chicago: Bielak, Christian Roman, Max Böhnke, Johannes Friedlein, Mathias Bobbert,
Julia Mergheim, Paul Steinmann, and Gerson Meschut. “Numerical Analysis of Failure
Modeling in Clinching Process Chain Simulation.” In Materials Research Proceedings.
Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-33.
ieee: 'C. R. Bielak et al., “Numerical analysis of failure modeling in clinching
process chain simulation,” presented at the SHEMET 2023, 2023, doi: 10.21741/9781644902417-33.'
mla: Bielak, Christian Roman, et al. “Numerical Analysis of Failure Modeling in
Clinching Process Chain Simulation.” Materials Research Proceedings, Materials
Research Forum LLC, 2023, doi:10.21741/9781644902417-33.
short: 'C.R. Bielak, M. Böhnke, J. Friedlein, M. Bobbert, J. Mergheim, P. Steinmann,
G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
2023.'
conference:
name: SHEMET 2023
date_created: 2023-03-23T08:13:30Z
date_updated: 2024-03-11T08:14:08Z
department:
- _id: '157'
doi: 10.21741/9781644902417-33
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Numerical analysis of failure modeling in clinching process chain simulation
type: conference
user_id: '45779'
year: '2023'
...
---
_id: '43462'
abstract:
- lang: eng
text: Abstract. In the numerical simulation of mechanical joining technologies
such as clinching, the material modeling of the joining parts is of major importance.
This includes modeling the damage and failure behavior of the materials in accordance
with varying occurring stress states. This paper presents a calibration method
of three different fracture models. The calibration of the models is done by use
of experimental data from a modified punch test, tensile test and bulge test in
order to map the occurring stress states from clinching processes and to precisely
model the resulting failure behavior. Experimental investigations were carried
out for an aluminum alloy EN AW-6014 in temper T4 and compared with the simulative
results generated in LS-DYNA. The comparison of force-displacement curves and
failure initiation shows that the Hosford–Coulomb model predicts the failure behavior
for the material used and the tests applied with the best accuracy.
author:
- 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: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Böhnke M, Bielak CR, Friedlein J, et al. A calibration method for failure
modeling in clinching process simulations. In: Materials Research Proceedings.
Materials Research Forum LLC; 2023. doi:10.21741/9781644902417-34'
apa: Böhnke, M., Bielak, C. R., Friedlein, J., Bobbert, M., Mergheim, J., Steinmann,
P., & Meschut, G. (2023). A calibration method for failure modeling in clinching
process simulations. Materials Research Proceedings. https://doi.org/10.21741/9781644902417-34
bibtex: '@inproceedings{Böhnke_Bielak_Friedlein_Bobbert_Mergheim_Steinmann_Meschut_2023,
title={A calibration method for failure modeling in clinching process simulations},
DOI={10.21741/9781644902417-34},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Böhnke, Max and Bielak, Christian Roman and Friedlein, Johannes
and Bobbert, Mathias and Mergheim, Julia and Steinmann, Paul and Meschut, Gerson},
year={2023} }'
chicago: Böhnke, Max, Christian Roman Bielak, Johannes Friedlein, Mathias Bobbert,
Julia Mergheim, Paul Steinmann, and Gerson Meschut. “A Calibration Method for
Failure Modeling in Clinching Process Simulations.” In Materials Research Proceedings.
Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-34.
ieee: 'M. Böhnke et al., “A calibration method for failure modeling in clinching
process simulations,” 2023, doi: 10.21741/9781644902417-34.'
mla: Böhnke, Max, et al. “A Calibration Method for Failure Modeling in Clinching
Process Simulations.” Materials Research Proceedings, Materials Research
Forum LLC, 2023, doi:10.21741/9781644902417-34.
short: 'M. Böhnke, C.R. Bielak, J. Friedlein, M. Bobbert, J. Mergheim, P. Steinmann,
G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
2023.'
date_created: 2023-04-13T07:42:53Z
date_updated: 2024-03-11T08:14:53Z
department:
- _id: '157'
doi: 10.21741/9781644902417-34
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: A calibration method for failure modeling in clinching process simulations
type: conference
user_id: '45779'
year: '2023'
...
---
_id: '43463'
author:
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: 'Friedlein J, Bielak CR, Böhnke M, et al. Influence of plastic orthotropy on
clinching of sheet metal. In: Materials Research Proceedings. Materials
Research Forum LLC; 2023. doi:10.21741/9781644902417-17 '
apa: Friedlein, J., Bielak, C. R., Böhnke, M., Bobbert, M., Mergheim, J., Steinmann,
P., & Meschut, G. (2023). Influence of plastic orthotropy on clinching of
sheet metal. Materials Research Proceedings. https://doi.org/10.21741/9781644902417-17
bibtex: '@inproceedings{Friedlein_Bielak_Böhnke_Bobbert_Mergheim_Steinmann_Meschut_2023,
title={Influence of plastic orthotropy on clinching of sheet metal}, DOI={10.21741/9781644902417-17 }, booktitle={Materials Research Proceedings},
publisher={Materials Research Forum LLC}, author={Friedlein, Johannes and Bielak,
Christian Roman and Böhnke, Max and Bobbert, Mathias and Mergheim, Julia and Steinmann,
Paul and Meschut, Gerson}, year={2023} }'
chicago: Friedlein, Johannes, Christian Roman Bielak, Max Böhnke, Mathias Bobbert,
Julia Mergheim, Paul Steinmann, and Gerson Meschut. “Influence of Plastic Orthotropy
on Clinching of Sheet Metal.” In Materials Research Proceedings. Materials
Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-17
.
ieee: 'J. Friedlein et al., “Influence of plastic orthotropy on clinching
of sheet metal,” 2023, doi: 10.21741/9781644902417-17 .'
mla: Friedlein, Johannes, et al. “Influence of Plastic Orthotropy on Clinching of
Sheet Metal.” Materials Research Proceedings, Materials Research Forum
LLC, 2023, doi:10.21741/9781644902417-17
.
short: 'J. Friedlein, C.R. Bielak, M. Böhnke, M. Bobbert, J. Mergheim, P. Steinmann,
G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
2023.'
date_created: 2023-04-13T07:50:05Z
date_updated: 2024-03-11T08:13:57Z
department:
- _id: '157'
doi: '10.21741/9781644902417-17 '
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: Materials Research Proceedings
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Influence of plastic orthotropy on clinching of sheet metal
type: conference
user_id: '45779'
year: '2023'
...
---
_id: '52614'
author:
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- 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: 'Bielak CR, Böhnke M, Bobbert M, Meschut G. Numerical Investigation of the
Coupled Friction Behavior in the Clinching Process Chain. In: Lecture Notes
in Mechanical Engineering. Springer Nature Switzerland; 2023. doi:10.1007/978-3-031-41341-4_15'
apa: Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (2023). Numerical
Investigation of the Coupled Friction Behavior in the Clinching Process Chain.
In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland.
https://doi.org/10.1007/978-3-031-41341-4_15
bibtex: '@inbook{Bielak_Böhnke_Bobbert_Meschut_2023, place={Cham}, title={Numerical
Investigation of the Coupled Friction Behavior in the Clinching Process Chain},
DOI={10.1007/978-3-031-41341-4_15},
booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature
Switzerland}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias
and Meschut, Gerson}, year={2023} }'
chicago: 'Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut.
“Numerical Investigation of the Coupled Friction Behavior in the Clinching Process
Chain.” In Lecture Notes in Mechanical Engineering. Cham: Springer Nature
Switzerland, 2023. https://doi.org/10.1007/978-3-031-41341-4_15.'
ieee: 'C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Numerical Investigation
of the Coupled Friction Behavior in the Clinching Process Chain,” in Lecture
Notes in Mechanical Engineering, Cham: Springer Nature Switzerland, 2023.'
mla: Bielak, Christian Roman, et al. “Numerical Investigation of the Coupled Friction
Behavior in the Clinching Process Chain.” Lecture Notes in Mechanical Engineering,
Springer Nature Switzerland, 2023, doi:10.1007/978-3-031-41341-4_15.
short: 'C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: Lecture Notes in Mechanical
Engineering, Springer Nature Switzerland, Cham, 2023.'
date_created: 2024-03-18T11:56:52Z
date_updated: 2025-01-28T08:55:05Z
department:
- _id: '157'
doi: 10.1007/978-3-031-41341-4_15
language:
- iso: eng
place: Cham
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
publication: Lecture Notes in Mechanical Engineering
publication_identifier:
isbn:
- '9783031413407'
- '9783031413414'
issn:
- 2195-4356
- 2195-4364
publication_status: published
publisher: Springer Nature Switzerland
quality_controlled: '1'
status: public
title: Numerical Investigation of the Coupled Friction Behavior in the Clinching Process
Chain
type: book_chapter
user_id: '45779'
year: '2023'
...
---
_id: '56097'
abstract:
- lang: eng
text: We contrast different gradient-enhancements for plasticity-damage material
models in the logarithmic strain space and compare them to reference models based
on multiplicative plasticity. The models being compared include plasticity - gradient-damage,
where the gradient-enhancement is applied on the local damage variable, and gradient-plasticity
- damage with a gradient-enhanced plastic hardening variable. Thereby, gradient-plasticity
proved to be able to simultaneously regularise plastic and ductile (plasticity-driven)
damage localisation as confirmed by numerical localisation analyses. This appears
to be especially advantageous for logarithmic strain space plasticity-damage,
because of the observed plastic localisation even for the case of plasticity with
hardening. Even though gradient-plasticity appears to be numerically more demanding,
two numerical examples indicate a good robustness and mesh objectivity in the
softening regime. Moreover, the internal length for plasticity is able to adjust
the damage zone width, similarly to gradient-damage, however ensuring a priori
that damage takes place exclusively inside the plastic zone.
article_number: '104946'
article_type: original
author:
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
citation:
ama: Friedlein J, Mergheim J, Steinmann P. Efficient gradient enhancements for plasticity
with ductile damage in the logarithmic strain space. European Journal of Mechanics
- A/Solids. 2023;99. doi:10.1016/j.euromechsol.2023.104946
apa: Friedlein, J., Mergheim, J., & Steinmann, P. (2023). Efficient gradient
enhancements for plasticity with ductile damage in the logarithmic strain space.
European Journal of Mechanics - A/Solids, 99, Article 104946. https://doi.org/10.1016/j.euromechsol.2023.104946
bibtex: '@article{Friedlein_Mergheim_Steinmann_2023, title={Efficient gradient enhancements
for plasticity with ductile damage in the logarithmic strain space}, volume={99},
DOI={10.1016/j.euromechsol.2023.104946},
number={104946}, journal={European Journal of Mechanics - A/Solids}, publisher={Elsevier
BV}, author={Friedlein, Johannes and Mergheim, Julia and Steinmann, Paul}, year={2023}
}'
chicago: Friedlein, Johannes, Julia Mergheim, and Paul Steinmann. “Efficient Gradient
Enhancements for Plasticity with Ductile Damage in the Logarithmic Strain Space.”
European Journal of Mechanics - A/Solids 99 (2023). https://doi.org/10.1016/j.euromechsol.2023.104946.
ieee: 'J. Friedlein, J. Mergheim, and P. Steinmann, “Efficient gradient enhancements
for plasticity with ductile damage in the logarithmic strain space,” European
Journal of Mechanics - A/Solids, vol. 99, Art. no. 104946, 2023, doi: 10.1016/j.euromechsol.2023.104946.'
mla: Friedlein, Johannes, et al. “Efficient Gradient Enhancements for Plasticity
with Ductile Damage in the Logarithmic Strain Space.” European Journal of Mechanics
- A/Solids, vol. 99, 104946, Elsevier BV, 2023, doi:10.1016/j.euromechsol.2023.104946.
short: J. Friedlein, J. Mergheim, P. Steinmann, European Journal of Mechanics -
A/Solids 99 (2023).
date_created: 2024-09-10T15:23:49Z
date_updated: 2026-02-24T14:37:05Z
doi: 10.1016/j.euromechsol.2023.104946
intvolume: ' 99'
keyword:
- Finite plasticity
- Logarithmic strain space
- Ductile damage
- Gradient-enhancement
- Gradient-plasticity
- Gradient-damage
- Loss of ellipticity
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: European Journal of Mechanics - A/Solids
publication_identifier:
issn:
- 0997-7538
publication_status: published
publisher: Elsevier BV
status: public
title: Efficient gradient enhancements for plasticity with ductile damage in the logarithmic
strain space
type: journal_article
user_id: '84990'
volume: 99
year: '2023'
...
---
_id: '62082'
author:
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: Simon
full_name: Eckardt, Simon
last_name: Eckardt
- first_name: Anton
full_name: Gelencsér, Anton
last_name: Gelencsér
- first_name: Eckart
full_name: Kunze, Eckart
last_name: Kunze
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Richard
full_name: Protz, Richard
last_name: Protz
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gröger B, Gerritzen J, Eckardt S, et al. Modelling of Composite Manufacturing
Processes Incorporating Large Fibre Deformations and Process Parameter Interactions
- Example Braiding. Published online 2023.
apa: Gröger, B., Gerritzen, J., Eckardt, S., Gelencsér, A., Kunze, E., Hornig, A.,
Protz, R., & Gude, M. (2023). Modelling of Composite Manufacturing Processes
Incorporating Large Fibre Deformations and Process Parameter Interactions - Example
Braiding. Twenty-Third International Conference on Composite Materials (ICCM23),
Belfast.
bibtex: '@article{Gröger_Gerritzen_Eckardt_Gelencsér_Kunze_Hornig_Protz_Gude_2023,
series={Proceedings of the 2023 International Conference on Composite Materials
(ICCM23)}, title={Modelling of Composite Manufacturing Processes Incorporating
Large Fibre Deformations and Process Parameter Interactions - Example Braiding},
author={Gröger, Benjamin and Gerritzen, Johannes and Eckardt, Simon and Gelencsér,
Anton and Kunze, Eckart and Hornig, Andreas and Protz, Richard and Gude, Maik},
year={2023}, collection={Proceedings of the 2023 International Conference on Composite
Materials (ICCM23)} }'
chicago: Gröger, Benjamin, Johannes Gerritzen, Simon Eckardt, Anton Gelencsér, Eckart
Kunze, Andreas Hornig, Richard Protz, and Maik Gude. “Modelling of Composite Manufacturing
Processes Incorporating Large Fibre Deformations and Process Parameter Interactions
- Example Braiding.” Proceedings of the 2023 International Conference on Composite
Materials (ICCM23), 2023.
ieee: B. Gröger et al., “Modelling of Composite Manufacturing Processes Incorporating
Large Fibre Deformations and Process Parameter Interactions - Example Braiding.”
2023.
mla: Gröger, Benjamin, et al. Modelling of Composite Manufacturing Processes
Incorporating Large Fibre Deformations and Process Parameter Interactions - Example
Braiding. 2023.
short: B. Gröger, J. Gerritzen, S. Eckardt, A. Gelencsér, E. Kunze, A. Hornig, R.
Protz, M. Gude, (2023).
conference:
end_date: 2023-08-06
location: Belfast
name: Twenty-Third International Conference on Composite Materials (ICCM23)
start_date: 2023-08-01
date_created: 2025-11-04T14:59:47Z
date_updated: 2026-02-27T06:46:51Z
language:
- iso: eng
project:
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '131'
name: TRR 285 - Project Area A
series_title: Proceedings of the 2023 International Conference on Composite Materials
(ICCM23)
status: public
title: Modelling of Composite Manufacturing Processes Incorporating Large Fibre Deformations
and Process Parameter Interactions - Example Braiding
type: conference
user_id: '105344'
year: '2023'
...
---
_id: '60647'
abstract:
- lang: ger
text: Das umformtechnische Fügeverfahren Clinchen ermöglicht ein energiearmes Fügen
von Blechen und dient traditionell der Übertragung mechanischer Kräfte. Neue Einsatzgebiete
erfordern eine elektrische oder thermische Leitfähigkeit, sodass es notwendig
ist, das Clinchen entsprechend zu qualifizieren. Es wurden Untersuchungen an Aluminiumverbindungen
durchgeführt, welche mit hohen Kurzzeitströmen belastet wurden. Der Einfluss verschiedener
Oberflächenvorbehandlungen wurde betrachtet. Als Charakterisierungsmethode für
die Bauteile und die geclinchten Fügeverbindungen wird die Messung des elektrischen
Widerstandes herangezogen. Die untersuchten Clinchverbindungen sind fähig, die
im Fehlerfall auftretenden Kurzzeitströme zu übertragen. Der Oberflächenzustand
übt dabei einen signifikanten Einfluss auf die Clinchpunktausbildung und damit
auf deren elektrische Eigenschaften aus. Durch Messung des elektrischen Widerstandes
vor und nach dem Fügen sowie nach einer Bestromung mit Fehlerströmen, kann das
Kontaktverhalten qualifiziert werden.
author:
- first_name: Gregor
full_name: Reschke, Gregor
id: '98812'
last_name: Reschke
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Uwe
full_name: Füssel, Uwe
last_name: Füssel
citation:
ama: 'Reschke G, Kalich J, Füssel U. Methoden zur Charakterisierung der Bindemechanismen
bei geclinchten elektrischen Kontakten. In: Zimmermann M, DGM - Deutsche Gesellschaft
für Materialkunde e.V. , eds. Tagung Werkstoffprüfung 2022: Werkstoffe und
Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung.
; 2023:374-379.'
apa: 'Reschke, G., Kalich, J., & Füssel, U. (2023). Methoden zur Charakterisierung
der Bindemechanismen bei geclinchten elektrischen Kontakten. In M. Zimmermann
& DGM - Deutsche Gesellschaft für Materialkunde e.V. (Eds.), Tagung Werkstoffprüfung
2022: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung
– Schadensvermeidung (pp. 374–379).'
bibtex: '@inproceedings{Reschke_Kalich_Füssel_2023, place={Sankt Augustin}, title={Methoden
zur Charakterisierung der Bindemechanismen bei geclinchten elektrischen Kontakten},
booktitle={Tagung Werkstoffprüfung 2022: Werkstoffe und Bauteile auf dem Prüfstand,
Prüftechnik – Kennwertermittlung – Schadensvermeidung}, author={Reschke, Gregor
and Kalich, Jan and Füssel, Uwe}, editor={Zimmermann, Martina and DGM - Deutsche
Gesellschaft für Materialkunde e.V. }, year={2023}, pages={374–379} }'
chicago: 'Reschke, Gregor, Jan Kalich, and Uwe Füssel. “Methoden zur Charakterisierung
der Bindemechanismen bei geclinchten elektrischen Kontakten.” In Tagung Werkstoffprüfung
2022: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung
– Schadensvermeidung, edited by Martina Zimmermann and DGM - Deutsche Gesellschaft
für Materialkunde e.V. , 374–79. Sankt Augustin, 2023.'
ieee: 'G. Reschke, J. Kalich, and U. Füssel, “Methoden zur Charakterisierung der
Bindemechanismen bei geclinchten elektrischen Kontakten,” in Tagung Werkstoffprüfung
2022: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung
– Schadensvermeidung, Dresden, 2023, pp. 374–379.'
mla: 'Reschke, Gregor, et al. “Methoden zur Charakterisierung der Bindemechanismen
bei geclinchten elektrischen Kontakten.” Tagung Werkstoffprüfung 2022: Werkstoffe
und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung,
edited by Martina Zimmermann and DGM - Deutsche Gesellschaft für Materialkunde
e.V. , 2023, pp. 374–79.'
short: 'G. Reschke, J. Kalich, U. Füssel, in: M. Zimmermann, DGM - Deutsche Gesellschaft
für Materialkunde e.V. (Eds.), Tagung Werkstoffprüfung 2022: Werkstoffe und Bauteile
auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung, Sankt
Augustin, 2023, pp. 374–379.'
conference:
end_date: 2022-10-28
location: Dresden
name: Tagung Werkstoffprüfung 2022
start_date: 2022-10-27
corporate_editor:
- 'DGM - Deutsche Gesellschaft für Materialkunde e.V. '
date_created: 2025-07-18T11:10:04Z
date_updated: 2025-07-18T11:35:32Z
department:
- _id: '630'
editor:
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
extern: '1'
keyword:
- Clinchen
- Bindemechanismen
- elektrische Eigenschaften
- Aluminium
- Kurzzeitbestromung
language:
- iso: ger
page: 374-379
place: Sankt Augustin
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
publication: 'Tagung Werkstoffprüfung 2022: Werkstoffe und Bauteile auf dem Prüfstand,
Prüftechnik – Kennwertermittlung – Schadensvermeidung'
publication_identifier:
isbn:
- 978-3-88355-430-3
publication_status: published
quality_controlled: '1'
status: public
title: Methoden zur Charakterisierung der Bindemechanismen bei geclinchten elektrischen
Kontakten
type: conference
user_id: '104468'
year: '2023'
...
---
_id: '34207'
abstract:
- lang: eng
text: AlSi casting alloys combine excellent castability with high strength. Hence,
this group of alloys is often used in the automotive sector. The challenge for
this application is the brittle character of these alloys which leads to cracks
during joint formation when mechanical joining technologies are used. A rise in
ductility can be achieved by a considerable increase in the solidification rate
which results in grain refinement. High solidification rates can be realized in
twin–roll casting (TRC) by water-cooled rolls. Therefore, a hypoeutectic EN AC–AlSi9
(for European Norm - aluminum cast product) is manufactured by the TRC process
and analyzed. Subsequently, joining investigations are performed on castings in
as-cast and heat-treated condition using the self-piercing riveting process considering
the joint formation and the load-bearing capacity. Due to the fine microstructure,
the crack initiation can be avoided during joining, while maintaining the joining
parameters, especially by specimens in heat treatment conditions. Furthermore,
due to the extremely fine microstructure, the load-bearing capacity of the joint
can be significantly increased in terms of the maximum load-bearing force and
the energy absorbed.
article_number: '2200874'
author:
- first_name: Moritz
full_name: Neuser, Moritz
last_name: Neuser
- first_name: Fabian
full_name: Kappe, Fabian
last_name: Kappe
- first_name: Jakob
full_name: Ostermeier, Jakob
last_name: Ostermeier
- first_name: Jan Tobias
full_name: Krüger, Jan Tobias
last_name: Krüger
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
- first_name: Olexandr
full_name: Grydin, Olexandr
last_name: Grydin
citation:
ama: Neuser M, Kappe F, Ostermeier J, et al. Mechanical Properties and Joinability
of AlSi9 Alloy Manufactured by Twin‐Roll Casting. Advanced Engineering Materials.
2022;24(10). doi:10.1002/adem.202200874
apa: Neuser, M., Kappe, F., Ostermeier, J., Krüger, J. T., Bobbert, M., Meschut,
G., Schaper, M., & Grydin, O. (2022). Mechanical Properties and Joinability
of AlSi9 Alloy Manufactured by Twin‐Roll Casting. Advanced Engineering Materials,
24(10), Article 2200874. https://doi.org/10.1002/adem.202200874
bibtex: '@article{Neuser_Kappe_Ostermeier_Krüger_Bobbert_Meschut_Schaper_Grydin_2022,
title={Mechanical Properties and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll
Casting}, volume={24}, DOI={10.1002/adem.202200874},
number={102200874}, journal={Advanced Engineering Materials}, publisher={Wiley},
author={Neuser, Moritz and Kappe, Fabian and Ostermeier, Jakob and Krüger, Jan
Tobias and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko and Grydin,
Olexandr}, year={2022} }'
chicago: Neuser, Moritz, Fabian Kappe, Jakob Ostermeier, Jan Tobias Krüger, Mathias
Bobbert, Gerson Meschut, Mirko Schaper, and Olexandr Grydin. “Mechanical Properties
and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll Casting.” Advanced
Engineering Materials 24, no. 10 (2022). https://doi.org/10.1002/adem.202200874.
ieee: 'M. Neuser et al., “Mechanical Properties and Joinability of AlSi9
Alloy Manufactured by Twin‐Roll Casting,” Advanced Engineering Materials,
vol. 24, no. 10, Art. no. 2200874, 2022, doi: 10.1002/adem.202200874.'
mla: Neuser, Moritz, et al. “Mechanical Properties and Joinability of AlSi9 Alloy
Manufactured by Twin‐Roll Casting.” Advanced Engineering Materials, vol.
24, no. 10, 2200874, Wiley, 2022, doi:10.1002/adem.202200874.
short: M. Neuser, F. Kappe, J. Ostermeier, J.T. Krüger, M. Bobbert, G. Meschut,
M. Schaper, O. Grydin, Advanced Engineering Materials 24 (2022).
date_created: 2022-12-05T20:07:55Z
date_updated: 2022-12-05T20:09:50Z
doi: 10.1002/adem.202200874
intvolume: ' 24'
issue: '10'
keyword:
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _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'
publication: Advanced Engineering Materials
publication_identifier:
issn:
- 1438-1656
- 1527-2648
publication_status: published
publisher: Wiley
status: public
title: Mechanical Properties and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll
Casting
type: journal_article
user_id: '7850'
volume: 24
year: '2022'
...
---
_id: '34211'
abstract:
- lang: eng
text: "Nowadays, clinching is a widely used joining technique, where sheets are
joined by pure deformation to create an interlock without the need for auxiliary
parts. This leads to advantages such as reduced joining time and manufacturing\r\ncosts.
On the other hand, the joint strength solely relies on directed material deformation,
which renders an accurate material modelling essential to reliably predict the
joint forming. The formation of the joint locally involves large plastic strains
and possibly complex non-proportional loading paths, as typical of many metal
forming applications. Consequently, a finite plasticity formulation is utilised
incorporating a Chaboche–Rousselier kinematic hardening law to capture the Bauschinger
effect. Material parameters are identified from tension–compression tests on miniature
spec-\r\nimens for the dual-phase steel HCT590X. The resulting material model
is implemented in LS-Dyna to study the locally diverse loading paths and give
a quantitative statement on the importance of kinematic hardening for clinching.
It turns out that the Bauschinger effect mainly affects the springback of the
sheets and has a smaller effect on the joint forming itself."
author:
- first_name: Johannes
full_name: Friedlein, Johannes
last_name: Friedlein
- first_name: Julia
full_name: Mergheim, Julia
last_name: Mergheim
- first_name: Paul
full_name: Steinmann, Paul
last_name: Steinmann
citation:
ama: 'Friedlein J, Mergheim J, Steinmann P. Influence of Kinematic Hardening on
Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal. In: The Minerals, Metals
& Materials Series. Springer International Publishing; 2022. doi:10.1007/978-3-031-06212-4_31'
apa: Friedlein, J., Mergheim, J., & Steinmann, P. (2022). Influence of Kinematic
Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal. In The
Minerals, Metals & Materials Series. Springer International Publishing.
https://doi.org/10.1007/978-3-031-06212-4_31
bibtex: '@inbook{Friedlein_Mergheim_Steinmann_2022, place={Cham}, title={Influence
of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal},
DOI={10.1007/978-3-031-06212-4_31},
booktitle={The Minerals, Metals & Materials Series}, publisher={Springer
International Publishing}, author={Friedlein, Johannes and Mergheim, Julia and
Steinmann, Paul}, year={2022} }'
chicago: 'Friedlein, Johannes, Julia Mergheim, and Paul Steinmann. “Influence of
Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal.”
In The Minerals, Metals & Materials Series. Cham: Springer International
Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_31.'
ieee: 'J. Friedlein, J. Mergheim, and P. Steinmann, “Influence of Kinematic Hardening
on Clinch Joining of Dual-Phase Steel HCT590X Sheet Metal,” in The Minerals,
Metals & Materials Series, Cham: Springer International Publishing,
2022.'
mla: Friedlein, Johannes, et al. “Influence of Kinematic Hardening on Clinch Joining
of Dual-Phase Steel HCT590X Sheet Metal.” The Minerals, Metals & Materials
Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_31.
short: 'J. Friedlein, J. Mergheim, P. Steinmann, in: The Minerals, Metals &
Materials Series, Springer International Publishing, Cham, 2022.'
date_created: 2022-12-05T21:01:29Z
date_updated: 2022-12-05T21:05:52Z
doi: 10.1007/978-3-031-06212-4_31
keyword:
- Clinching
- Material modelling
- Kinematic hardening
- Parameter identification
- Bauschinger effect
language:
- iso: eng
place: Cham
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '139'
name: 'TRR 285 – A05: TRR 285 - Subproject A05'
publication: The Minerals, Metals & Materials Series
publication_identifier:
isbn:
- '9783031062117'
- '9783031062124'
issn:
- 2367-1181
- 2367-1696
publication_status: published
publisher: Springer International Publishing
status: public
title: Influence of Kinematic Hardening on Clinch Joining of Dual-Phase Steel HCT590X
Sheet Metal
type: book_chapter
user_id: '7850'
year: '2022'
...
---
_id: '34213'
abstract:
- lang: eng
text: In this paper, a study based on experimental and numerical simulations is
performed to analyze fatigue cracks in clinched joints. An experimental investigation
is conducted to determine the failure modes of clinched joints under cyclic loading
at different load amplitudes with single-lap shear tests. In addition, numerical
FEM simulations of clinching process and subsequent shear loading are performed
to support the experimental investigations by analyzing the state of stresses
at the location of failure. An attempt is made to explain the location of crack
initiation in the experiments using evaluation variables such as contact shear
stress and maximum principal stress.
author:
- first_name: L.
full_name: Ewenz, L.
last_name: Ewenz
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Mortaza
full_name: Otroshi, Mortaza
id: '71269'
last_name: Otroshi
orcid: 0000-0002-8652-9209
- 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: M.
full_name: Zimmermann, M.
last_name: Zimmermann
citation:
ama: Ewenz L, Bielak CR, Otroshi M, Bobbert M, Meschut G, Zimmermann M. Numerical
and experimental identification of fatigue crack initiation sites in clinched
joints. Production Engineering. 2022;16(2-3):305-313. doi:10.1007/s11740-022-01124-z
apa: Ewenz, L., Bielak, C. R., Otroshi, M., Bobbert, M., Meschut, G., & Zimmermann,
M. (2022). Numerical and experimental identification of fatigue crack initiation
sites in clinched joints. Production Engineering, 16(2–3), 305–313.
https://doi.org/10.1007/s11740-022-01124-z
bibtex: '@article{Ewenz_Bielak_Otroshi_Bobbert_Meschut_Zimmermann_2022, title={Numerical
and experimental identification of fatigue crack initiation sites in clinched
joints}, volume={16}, DOI={10.1007/s11740-022-01124-z},
number={2–3}, journal={Production Engineering}, publisher={Springer Science and
Business Media LLC}, author={Ewenz, L. and Bielak, Christian Roman and Otroshi,
Mortaza and Bobbert, Mathias and Meschut, Gerson and Zimmermann, M.}, year={2022},
pages={305–313} }'
chicago: 'Ewenz, L., Christian Roman Bielak, Mortaza Otroshi, Mathias Bobbert, Gerson
Meschut, and M. Zimmermann. “Numerical and Experimental Identification of Fatigue
Crack Initiation Sites in Clinched Joints.” Production Engineering 16,
no. 2–3 (2022): 305–13. https://doi.org/10.1007/s11740-022-01124-z.'
ieee: 'L. Ewenz, C. R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, and M. Zimmermann,
“Numerical and experimental identification of fatigue crack initiation sites in
clinched joints,” Production Engineering, vol. 16, no. 2–3, pp. 305–313,
2022, doi: 10.1007/s11740-022-01124-z.'
mla: Ewenz, L., et al. “Numerical and Experimental Identification of Fatigue Crack
Initiation Sites in Clinched Joints.” Production Engineering, vol. 16,
no. 2–3, Springer Science and Business Media LLC, 2022, pp. 305–13, doi:10.1007/s11740-022-01124-z.
short: L. Ewenz, C.R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, M. Zimmermann,
Production Engineering 16 (2022) 305–313.
date_created: 2022-12-05T21:12:10Z
date_updated: 2022-12-05T21:14:34Z
doi: 10.1007/s11740-022-01124-z
intvolume: ' 16'
issue: 2-3
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
language:
- iso: eng
page: 305-313
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '141'
name: 'TRR 285 – B02: TRR 285 - Subproject B02'
publication: Production Engineering
publication_identifier:
issn:
- 0944-6524
- 1863-7353
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Numerical and experimental identification of fatigue crack initiation sites
in clinched joints
type: journal_article
user_id: '7850'
volume: 16
year: '2022'
...