---
_id: '33381'
article_type: original
author:
- first_name: Lisa
full_name: Scheiwe, Lisa
id: '33408'
last_name: Scheiwe
citation:
ama: Scheiwe L. Evaluating Accents of English in ELT Textbooks Used at German Secondary
Schools. Anglistik. 2022;33(2):61-75. doi:https://doi.org/10.33675/ANGL/2022/2/8
apa: Scheiwe, L. (2022). Evaluating Accents of English in ELT Textbooks Used at
German Secondary Schools. Anglistik, 33(2), 61–75. https://doi.org/10.33675/ANGL/2022/2/8
bibtex: '@article{Scheiwe_2022, title={Evaluating Accents of English in ELT Textbooks
Used at German Secondary Schools}, volume={33}, DOI={https://doi.org/10.33675/ANGL/2022/2/8},
number={2}, journal={Anglistik}, author={Scheiwe, Lisa}, year={2022}, pages={61–75}
}'
chicago: 'Scheiwe, Lisa. “Evaluating Accents of English in ELT Textbooks Used at
German Secondary Schools.” Anglistik 33, no. 2 (2022): 61–75. https://doi.org/10.33675/ANGL/2022/2/8.'
ieee: 'L. Scheiwe, “Evaluating Accents of English in ELT Textbooks Used at German
Secondary Schools,” Anglistik, vol. 33, no. 2, pp. 61–75, 2022, doi: https://doi.org/10.33675/ANGL/2022/2/8.'
mla: Scheiwe, Lisa. “Evaluating Accents of English in ELT Textbooks Used at German
Secondary Schools.” Anglistik, vol. 33, no. 2, 2022, pp. 61–75, doi:https://doi.org/10.33675/ANGL/2022/2/8.
short: L. Scheiwe, Anglistik 33 (2022) 61–75.
date_created: 2022-09-15T09:08:25Z
date_updated: 2022-09-15T09:10:10Z
doi: https://doi.org/10.33675/ANGL/2022/2/8
intvolume: ' 33'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://angl.winter-verlag.de/article/ANGL/2022/2/8
oa: '1'
page: 61-75
publication: Anglistik
publication_status: published
status: public
title: Evaluating Accents of English in ELT Textbooks Used at German Secondary Schools
type: journal_article
user_id: '33408'
volume: 33
year: '2022'
...
---
_id: '6579'
abstract:
- lang: eng
text: An explicit approach using symplectic time integration in conjunction with
traditional finite difference spatial derivatives to solve the wave equation in
moving media is presented. A simple operator split of this second order wave equation
into two coupled first order equations is performed, allowing these split equations
to be solved symplectically. Orders of symplectic time integration ranging from
first to fourth along with orders of spatial derivatives ranging from second to
sixth are explored. The case of cylindrical acoustic spreading in air under a
constant velocity in a 2D square structured domain is considered. The variation
of the computed time-of-flight, frequency, and wave length are studied with varying
grid resolution and the deviations from the analytical solutions are determined.
It was found that symplectic time integration interferes with finite difference
spatial derivatives higher than second order causing unexpected results. This
is actually beneficial for unstructured finite volume tools like OpenFOAM where
second order spatial operators are the state-of-the art. Cylindrical acoustic
spreading is simulated on an unstructured 2D triangle mesh showing that symplectic
time integration is not limited to the spatial discretization paradigm and overcomes
the numerical diffusion arising with the in-built numerical methods which hinder
wave propagation.
article_number: e12573
article_type: original
author:
- first_name: Venkatesh
full_name: Inguva, Venkatesh
id: '75069'
last_name: Inguva
- first_name: Nadine
full_name: Feldmann, Nadine
id: '23082'
last_name: Feldmann
- first_name: Leander
full_name: Claes, Leander
id: '11829'
last_name: Claes
orcid: 0000-0002-4393-268X
- first_name: Taras
full_name: Koturbash, Taras
last_name: Koturbash
- first_name: Thomas
full_name: Hahn-Jose, Thomas
last_name: Hahn-Jose
- first_name: Vladimir
full_name: Koutcherov, Vladimir
last_name: Koutcherov
- first_name: Eugeny
full_name: Kenig, Eugeny
id: '665'
last_name: Kenig
citation:
ama: Inguva V, Feldmann N, Claes L, et al. An explicit symplectic approach to solving
the wave equation in moving media. Engineering Reports. Published online
2022. doi:10.1002/eng2.12573
apa: Inguva, V., Feldmann, N., Claes, L., Koturbash, T., Hahn-Jose, T., Koutcherov,
V., & Kenig, E. (2022). An explicit symplectic approach to solving the wave
equation in moving media. Engineering Reports, Article e12573. https://doi.org/10.1002/eng2.12573
bibtex: '@article{Inguva_Feldmann_Claes_Koturbash_Hahn-Jose_Koutcherov_Kenig_2022,
title={An explicit symplectic approach to solving the wave equation in moving
media}, DOI={10.1002/eng2.12573},
number={e12573}, journal={Engineering Reports}, author={Inguva, Venkatesh and
Feldmann, Nadine and Claes, Leander and Koturbash, Taras and Hahn-Jose, Thomas
and Koutcherov, Vladimir and Kenig, Eugeny}, year={2022} }'
chicago: Inguva, Venkatesh, Nadine Feldmann, Leander Claes, Taras Koturbash, Thomas
Hahn-Jose, Vladimir Koutcherov, and Eugeny Kenig. “An Explicit Symplectic Approach
to Solving the Wave Equation in Moving Media.” Engineering Reports, 2022.
https://doi.org/10.1002/eng2.12573.
ieee: 'V. Inguva et al., “An explicit symplectic approach to solving the
wave equation in moving media,” Engineering Reports, Art. no. e12573, 2022,
doi: 10.1002/eng2.12573.'
mla: Inguva, Venkatesh, et al. “An Explicit Symplectic Approach to Solving the Wave
Equation in Moving Media.” Engineering Reports, e12573, 2022, doi:10.1002/eng2.12573.
short: V. Inguva, N. Feldmann, L. Claes, T. Koturbash, T. Hahn-Jose, V. Koutcherov,
E. Kenig, Engineering Reports (2022).
date_created: 2019-01-09T14:37:29Z
date_updated: 2022-09-19T06:59:57Z
department:
- _id: '145'
- _id: '49'
doi: 10.1002/eng2.12573
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/abs/10.1002/eng2.12573
oa: '1'
publication: Engineering Reports
status: public
title: An explicit symplectic approach to solving the wave equation in moving media
type: journal_article
user_id: '11829'
year: '2022'
...
---
_id: '33523'
abstract:
- lang: ger
text: Die thermisch verursachte, plastische Verformung an statischen Druckplatten
von Lamellenbremsen kann das Betriebsverhalten von Bremsen nachhaltig stören und
sollte daher vermieden werden. So kann die plastische Verformung der Druckplatte
beispielsweise zu einer Verkleinerung des Luftspalts führen und ungewollte Veränderung
der Reibverhältnisse verursachen. Während des Bremsvorgangs dehnen sich hoch erwärmte
Bereiche nah der Reibfläche aus und werden von den Zonen geringerer Temperatur
an ihrer Ausdehnung gehindert. Überschreiten die daraus resultierenden Spannungen
die Dehngrenze des Materials, kommt es zu plastischer Verformung. Dieser Artikel
erläutert den physikalischen Verformungsprozess detailliert und darauf aufbauend,
welche Maßnahmen zu einer Verringerung der Verformung ergriffen werden können.
Dazu werden im Rahmen theoretischer Vorüberlegungen drei Ansätze identifiziert,
die sowohl die Geometrie als auch die Werkstoffe der Druckplatten betreffen. Radiale
Schlitze sollen die Behinderung der thermischen Dehnung verhindern und dadurch
Spannungen reduzieren; die Werkstoffauswahl auf Basis der Thermoschockempfindlichkeit
reduziert die plastische Verformung. Anhand einer kombinierten Simulation der
Thermik und der Mechanik einer Druckplatte wird der Effekt dieser Ansätze an vier
Varianten der Druckplatte überprüft. Experimentelle Untersuchungen an realen Prototypen
der Druckplattenvarianten bestätigen die Ergebnisse der Simulation und weisen
die Wirksamkeit der vorgeschlagenen Maßnahmen zur Reduzierung der plastischen
Verformung nach.
article_type: original
author:
- first_name: Magnus
full_name: Schadomsky, Magnus
id: '11904'
last_name: Schadomsky
- first_name: Lars Martin
full_name: Blumenthal, Lars Martin
id: '27566'
last_name: Blumenthal
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
- first_name: Simon
full_name: Peter, Simon
last_name: Peter
- first_name: Laszlo
full_name: Boros, Laszlo
last_name: Boros
citation:
ama: Schadomsky M, Blumenthal LM, Zimmer D, Peter S, Boros L. Maßnahmen zur Reduzierung
von plastischer Verformung an statischen Druckplatten von Lammellenbremsen infolge
einseitig eingebrachter hoher Reibleistung. Forschung im Ingenieurwesen.
Published online 2022. doi:10.1007/s10010-022-00601-2
apa: Schadomsky, M., Blumenthal, L. M., Zimmer, D., Peter, S., & Boros, L. (2022).
Maßnahmen zur Reduzierung von plastischer Verformung an statischen Druckplatten
von Lammellenbremsen infolge einseitig eingebrachter hoher Reibleistung. Forschung
im Ingenieurwesen. https://doi.org/10.1007/s10010-022-00601-2
bibtex: '@article{Schadomsky_Blumenthal_Zimmer_Peter_Boros_2022, title={Maßnahmen
zur Reduzierung von plastischer Verformung an statischen Druckplatten von Lammellenbremsen
infolge einseitig eingebrachter hoher Reibleistung}, DOI={10.1007/s10010-022-00601-2},
journal={Forschung im Ingenieurwesen}, publisher={Springer Science and Business
Media LLC}, author={Schadomsky, Magnus and Blumenthal, Lars Martin and Zimmer,
Detmar and Peter, Simon and Boros, Laszlo}, year={2022} }'
chicago: Schadomsky, Magnus, Lars Martin Blumenthal, Detmar Zimmer, Simon Peter,
and Laszlo Boros. “Maßnahmen zur Reduzierung von plastischer Verformung an statischen
Druckplatten von Lammellenbremsen infolge einseitig eingebrachter hoher Reibleistung.”
Forschung im Ingenieurwesen, 2022. https://doi.org/10.1007/s10010-022-00601-2.
ieee: 'M. Schadomsky, L. M. Blumenthal, D. Zimmer, S. Peter, and L. Boros, “Maßnahmen
zur Reduzierung von plastischer Verformung an statischen Druckplatten von Lammellenbremsen
infolge einseitig eingebrachter hoher Reibleistung,” Forschung im Ingenieurwesen,
2022, doi: 10.1007/s10010-022-00601-2.'
mla: Schadomsky, Magnus, et al. “Maßnahmen zur Reduzierung von plastischer Verformung
an statischen Druckplatten von Lammellenbremsen infolge einseitig eingebrachter
hoher Reibleistung.” Forschung im Ingenieurwesen, Springer Science and
Business Media LLC, 2022, doi:10.1007/s10010-022-00601-2.
short: M. Schadomsky, L.M. Blumenthal, D. Zimmer, S. Peter, L. Boros, Forschung
im Ingenieurwesen (2022).
date_created: 2022-10-05T13:54:14Z
date_updated: 2022-10-05T14:09:05Z
department:
- _id: '146'
doi: 10.1007/s10010-022-00601-2
keyword:
- General Engineering
- Bremsen
- Bremsscheiben
- thermoplastische Verformung
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://rdcu.be/cWonK
oa: '1'
publication: Forschung im Ingenieurwesen
publication_identifier:
issn:
- 0015-7899
- 1434-0860
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Maßnahmen zur Reduzierung von plastischer Verformung an statischen Druckplatten
von Lammellenbremsen infolge einseitig eingebrachter hoher Reibleistung
type: journal_article
user_id: '11904'
year: '2022'
...
---
_id: '33810'
article_type: original
author:
- first_name: Christian
full_name: Koldewey, Christian
id: '43136'
last_name: Koldewey
orcid: https://orcid.org/0000-0001-7992-6399
- first_name: Daniela
full_name: Hobscheidt, Daniela
last_name: Hobscheidt
- first_name: Christoph
full_name: Pierenkemper, Christoph
last_name: Pierenkemper
- first_name: Arno
full_name: Kühn, Arno
last_name: Kühn
- first_name: Roman
full_name: Dumitrescu, Roman
id: '16190'
last_name: Dumitrescu
citation:
ama: Koldewey C, Hobscheidt D, Pierenkemper C, Kühn A, Dumitrescu R. Increasing
Firm Performance through Industry 4.0—A Method to Define and Reach Meaningful
Goals. Sci. 2022;39(4). doi:https://doi.org/10.3390/sci4040039
apa: Koldewey, C., Hobscheidt, D., Pierenkemper, C., Kühn, A., & Dumitrescu,
R. (2022). Increasing Firm Performance through Industry 4.0—A Method to Define
and Reach Meaningful Goals. Sci, 39(4). https://doi.org/10.3390/sci4040039
bibtex: '@article{Koldewey_Hobscheidt_Pierenkemper_Kühn_Dumitrescu_2022, title={Increasing
Firm Performance through Industry 4.0—A Method to Define and Reach Meaningful
Goals}, volume={39}, DOI={https://doi.org/10.3390/sci4040039},
number={4}, journal={Sci}, publisher={MDPI}, author={Koldewey, Christian and Hobscheidt,
Daniela and Pierenkemper, Christoph and Kühn, Arno and Dumitrescu, Roman}, year={2022}
}'
chicago: Koldewey, Christian, Daniela Hobscheidt, Christoph Pierenkemper, Arno Kühn,
and Roman Dumitrescu. “Increasing Firm Performance through Industry 4.0—A Method
to Define and Reach Meaningful Goals.” Sci 39, no. 4 (2022). https://doi.org/10.3390/sci4040039.
ieee: 'C. Koldewey, D. Hobscheidt, C. Pierenkemper, A. Kühn, and R. Dumitrescu,
“Increasing Firm Performance through Industry 4.0—A Method to Define and Reach
Meaningful Goals,” Sci, vol. 39, no. 4, 2022, doi: https://doi.org/10.3390/sci4040039.'
mla: Koldewey, Christian, et al. “Increasing Firm Performance through Industry 4.0—A
Method to Define and Reach Meaningful Goals.” Sci, vol. 39, no. 4, MDPI,
2022, doi:https://doi.org/10.3390/sci4040039.
short: C. Koldewey, D. Hobscheidt, C. Pierenkemper, A. Kühn, R. Dumitrescu, Sci
39 (2022).
date_created: 2022-10-18T09:59:59Z
date_updated: 2022-10-19T12:29:26Z
department:
- _id: '563'
doi: https://doi.org/10.3390/sci4040039
intvolume: ' 39'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2413-4155/4/4/39/pdf?version=1666082435
oa: '1'
publication: Sci
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: Increasing Firm Performance through Industry 4.0—A Method to Define and Reach
Meaningful Goals
type: journal_article
user_id: '15782'
volume: 39
year: '2022'
...
---
_id: '20731'
abstract:
- lang: eng
text: We present a novel algorithm that allows us to gain detailed insight into
the effects of sparsity in linear and nonlinear optimization, which is of great
importance in many scientific areas such as image and signal processing, medical
imaging, compressed sensing, and machine learning (e.g., for the training of neural
networks). Sparsity is an important feature to ensure robustness against noisy
data, but also to find models that are interpretable and easy to analyze due to
the small number of relevant terms. It is common practice to enforce sparsity
by adding the ℓ1-norm as a weighted penalty term. In order to gain a better understanding
and to allow for an informed model selection, we directly solve the corresponding
multiobjective optimization problem (MOP) that arises when we minimize the main
objective and the ℓ1-norm simultaneously. As this MOP is in general non-convex
for nonlinear objectives, the weighting method will fail to provide all optimal
compromises. To avoid this issue, we present a continuation method which is specifically
tailored to MOPs with two objective functions one of which is the ℓ1-norm. Our
method can be seen as a generalization of well-known homotopy methods for linear
regression problems to the nonlinear case. Several numerical examples - including
neural network training - demonstrate our theoretical findings and the additional
insight that can be gained by this multiobjective approach.
article_type: original
author:
- first_name: Katharina
full_name: Bieker, Katharina
id: '32829'
last_name: Bieker
- first_name: Bennet
full_name: Gebken, Bennet
id: '32643'
last_name: Gebken
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
citation:
ama: Bieker K, Gebken B, Peitz S. On the Treatment of Optimization Problems with
L1 Penalty Terms via Multiobjective Continuation. IEEE Transactions on Pattern
Analysis and Machine Intelligence. 2022;44(11):7797-7808. doi:10.1109/TPAMI.2021.3114962
apa: Bieker, K., Gebken, B., & Peitz, S. (2022). On the Treatment of Optimization
Problems with L1 Penalty Terms via Multiobjective Continuation. IEEE Transactions
on Pattern Analysis and Machine Intelligence, 44(11), 7797–7808. https://doi.org/10.1109/TPAMI.2021.3114962
bibtex: '@article{Bieker_Gebken_Peitz_2022, title={On the Treatment of Optimization
Problems with L1 Penalty Terms via Multiobjective Continuation}, volume={44},
DOI={10.1109/TPAMI.2021.3114962},
number={11}, journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
publisher={IEEE}, author={Bieker, Katharina and Gebken, Bennet and Peitz, Sebastian},
year={2022}, pages={7797–7808} }'
chicago: 'Bieker, Katharina, Bennet Gebken, and Sebastian Peitz. “On the Treatment
of Optimization Problems with L1 Penalty Terms via Multiobjective Continuation.”
IEEE Transactions on Pattern Analysis and Machine Intelligence 44, no.
11 (2022): 7797–7808. https://doi.org/10.1109/TPAMI.2021.3114962.'
ieee: 'K. Bieker, B. Gebken, and S. Peitz, “On the Treatment of Optimization Problems
with L1 Penalty Terms via Multiobjective Continuation,” IEEE Transactions on
Pattern Analysis and Machine Intelligence, vol. 44, no. 11, pp. 7797–7808,
2022, doi: 10.1109/TPAMI.2021.3114962.'
mla: Bieker, Katharina, et al. “On the Treatment of Optimization Problems with L1
Penalty Terms via Multiobjective Continuation.” IEEE Transactions on Pattern
Analysis and Machine Intelligence, vol. 44, no. 11, IEEE, 2022, pp. 7797–808,
doi:10.1109/TPAMI.2021.3114962.
short: K. Bieker, B. Gebken, S. Peitz, IEEE Transactions on Pattern Analysis and
Machine Intelligence 44 (2022) 7797–7808.
date_created: 2020-12-15T07:46:36Z
date_updated: 2022-10-21T12:27:16Z
ddc:
- '510'
department:
- _id: '101'
- _id: '530'
- _id: '655'
doi: 10.1109/TPAMI.2021.3114962
file:
- access_level: closed
content_type: application/pdf
creator: speitz
date_created: 2021-09-25T11:59:15Z
date_updated: 2021-09-25T11:59:15Z
file_id: '25040'
file_name: On_the_Treatment_of_Optimization_Problems_with_L1_Penalty_Terms_via_Multiobjective_Continuation.pdf
file_size: 7990831
relation: main_file
success: 1
file_date_updated: 2021-09-25T11:59:15Z
has_accepted_license: '1'
intvolume: ' 44'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9547772
oa: '1'
page: 7797-7808
publication: IEEE Transactions on Pattern Analysis and Machine Intelligence
publication_status: epub_ahead
publisher: IEEE
status: public
title: On the Treatment of Optimization Problems with L1 Penalty Terms via Multiobjective
Continuation
type: journal_article
user_id: '47427'
volume: 44
year: '2022'
...
---
_id: '34015'
author:
- first_name: Ingrid
full_name: Scharlau, Ingrid
id: '451'
last_name: Scharlau
orcid: 0000-0003-2364-9489
citation:
ama: 'Scharlau I. Hundertstelmillimeter. In: Haacke-Werron S, Karsten A, Scharlau
I, eds. Reflexive Schreibwissenschaft. Vol 14. Theorie und Praxis der Schreibwissenschaft.
WBV; 2022:147-152. doi:10.3278/9783763972524'
apa: Scharlau, I. (2022). Hundertstelmillimeter. In S. Haacke-Werron, A. Karsten,
& I. Scharlau (Eds.), Reflexive Schreibwissenschaft (Vol. 14, pp. 147–152).
WBV. https://doi.org/10.3278/9783763972524
bibtex: '@inbook{Scharlau_2022, place={Bielefeld}, series={Theorie und Praxis der
Schreibwissenschaft}, title={Hundertstelmillimeter}, volume={14}, DOI={10.3278/9783763972524},
booktitle={Reflexive Schreibwissenschaft}, publisher={WBV}, author={Scharlau,
Ingrid}, editor={Haacke-Werron, Stefanie and Karsten, Andrea and Scharlau, Ingrid},
year={2022}, pages={147–152}, collection={Theorie und Praxis der Schreibwissenschaft}
}'
chicago: 'Scharlau, Ingrid. “Hundertstelmillimeter.” In Reflexive Schreibwissenschaft,
edited by Stefanie Haacke-Werron, Andrea Karsten, and Ingrid Scharlau, 14:147–52.
Theorie und Praxis der Schreibwissenschaft. Bielefeld: WBV, 2022. https://doi.org/10.3278/9783763972524.'
ieee: 'I. Scharlau, “Hundertstelmillimeter,” in Reflexive Schreibwissenschaft,
vol. 14, S. Haacke-Werron, A. Karsten, and I. Scharlau, Eds. Bielefeld: WBV, 2022,
pp. 147–152.'
mla: Scharlau, Ingrid. “Hundertstelmillimeter.” Reflexive Schreibwissenschaft,
edited by Stefanie Haacke-Werron et al., vol. 14, WBV, 2022, pp. 147–52, doi:10.3278/9783763972524.
short: 'I. Scharlau, in: S. Haacke-Werron, A. Karsten, I. Scharlau (Eds.), Reflexive
Schreibwissenschaft, WBV, Bielefeld, 2022, pp. 147–152.'
date_created: 2022-11-04T13:51:26Z
date_updated: 2022-11-04T13:51:31Z
department:
- _id: '424'
doi: 10.3278/9783763972524
editor:
- first_name: Stefanie
full_name: Haacke-Werron, Stefanie
last_name: Haacke-Werron
- first_name: Andrea
full_name: Karsten, Andrea
last_name: Karsten
- first_name: Ingrid
full_name: Scharlau, Ingrid
last_name: Scharlau
intvolume: ' 14'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.wbv.de/shop/geistes-und-sozialwissenschaften/schreibwissenschaft/shop/detail/name/_/0/1/I72524/facet/I72524///////nb/0/category/1743.html
oa: '1'
page: 147-152
place: Bielefeld
publication: Reflexive Schreibwissenschaft
publication_identifier:
unknown:
- '9783763972517'
- '9783763972524'
publication_status: published
publisher: WBV
series_title: Theorie und Praxis der Schreibwissenschaft
status: public
title: Hundertstelmillimeter
type: book_chapter
user_id: '451'
volume: 14
year: '2022'
...
---
_id: '34253'
abstract:
- lang: eng
text: "Lightweight construction has increasingly become the focus of scientific
research in recent years, not least due to\r\nthe constantly increasing fuel price,
which is a key factor in the economic viability of many companies. In this\r\nrespect,
the use of hybrid structures, made of dissimilar materials offers many advantages.
However, such hybrid\r\nstructures often have undesirable side effects. For example,
brittle intermetallic phases are formed when\r\naluminum and steel are welded.
Clinching as a mechanical joining process does not produce such intermetallic\r\nphases
since the connection is realized through form and force closure. In this process,
a punch passes through\r\ntwo or more sheets and forms them into a permanent joint
in a die. In the present work, the corrosion phenomena\r\nof an aluminum-steel
clinched joint have been investigated by both experiments and numerical simulations
in\r\norder to explain the superior fatigue behavior of pre-corroded joints. Therefore,
the clinched joints have been\r\ncorroded by a three-week salt-spray test. In
addition, the electric potential and the von Mises stress are calculated\r\nunder
the assumption of a static loading. The results of both experiments and numerical
simulations can explain\r\nthe improvement in the fatigue behavior of the corroded
specimens. This phenomenon can be attributed to the\r\naccumulation of corrosion
products in small gaps between the joined metal sheets."
article_number: '100130'
author:
- first_name: Sven
full_name: Harzheim, Sven
last_name: Harzheim
- first_name: Lars
full_name: Ewenz, Lars
last_name: Ewenz
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
- first_name: Thomas
full_name: Wallmersperger, Thomas
last_name: Wallmersperger
citation:
ama: 'Harzheim S, Ewenz L, Zimmermann M, Wallmersperger T. Corrosion Phenomena and
Fatigue Behavior of Clinched Joints: Numerical and Experimental Investigations.
Journal of Advanced Joining Processes. 2022;6. doi:10.1016/j.jajp.2022.100130'
apa: 'Harzheim, S., Ewenz, L., Zimmermann, M., & Wallmersperger, T. (2022).
Corrosion Phenomena and Fatigue Behavior of Clinched Joints: Numerical and Experimental
Investigations. Journal of Advanced Joining Processes, 6, Article
100130. https://doi.org/10.1016/j.jajp.2022.100130'
bibtex: '@article{Harzheim_Ewenz_Zimmermann_Wallmersperger_2022, title={Corrosion
Phenomena and Fatigue Behavior of Clinched Joints: Numerical and Experimental
Investigations}, volume={6}, DOI={10.1016/j.jajp.2022.100130},
number={100130}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
BV}, author={Harzheim, Sven and Ewenz, Lars and Zimmermann, Martina and Wallmersperger,
Thomas}, year={2022} }'
chicago: 'Harzheim, Sven, Lars Ewenz, Martina Zimmermann, and Thomas Wallmersperger.
“Corrosion Phenomena and Fatigue Behavior of Clinched Joints: Numerical and Experimental
Investigations.” Journal of Advanced Joining Processes 6 (2022). https://doi.org/10.1016/j.jajp.2022.100130.'
ieee: 'S. Harzheim, L. Ewenz, M. Zimmermann, and T. Wallmersperger, “Corrosion Phenomena
and Fatigue Behavior of Clinched Joints: Numerical and Experimental Investigations,”
Journal of Advanced Joining Processes, vol. 6, Art. no. 100130, 2022, doi:
10.1016/j.jajp.2022.100130.'
mla: 'Harzheim, Sven, et al. “Corrosion Phenomena and Fatigue Behavior of Clinched
Joints: Numerical and Experimental Investigations.” Journal of Advanced Joining
Processes, vol. 6, 100130, Elsevier BV, 2022, doi:10.1016/j.jajp.2022.100130.'
short: S. Harzheim, L. Ewenz, M. Zimmermann, T. Wallmersperger, Journal of Advanced
Joining Processes 6 (2022).
date_created: 2022-12-06T19:29:59Z
date_updated: 2023-01-02T11:04:06Z
department:
- _id: '630'
doi: 10.1016/j.jajp.2022.100130
intvolume: ' 6'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- Engineering (miscellaneous)
- Chemical Engineering (miscellaneous)
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S2666330922000346?via%3Dihub
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '141'
name: 'TRR 285 – B02: TRR 285 - Subproject B02'
- _id: '142'
name: 'TRR 285 – B03: TRR 285 - Subproject B03'
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier BV
status: public
title: 'Corrosion Phenomena and Fatigue Behavior of Clinched Joints: Numerical and
Experimental Investigations'
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34252'
abstract:
- lang: eng
text: Clinching is the manufacturing process of joining two or more metal sheets
under high plastic deformation by form and force closure without thermal support
and auxiliary parts. Clinch connections are applicable to difficult-to-join hybrid
material combinations, such as steel and aluminum. Therefore, this technology
is interesting for the application of AISI 304 components, as this material is
widely used as a highly formable sheet material. A characteristic feature of AISI
304 is its metastability, i.e., the face-centered cubic (fcc) γ-austenite can
transform into a significantly stronger body-centered cubic (bcc) α’-martensite
under plastic deformation. This work investigates the effect of heat treatment—a
process that involves the formation of an oxidation layer on the sheet surface—on
the forming process during joining and the resulting mechanical properties of
clinch joints made from AISI 304. For this purpose, different joints made from
non-heat treated and heat-treated sheets were examined using classical metallography
and advanced SEM techniques, accompanied by further investigations, such as hardness
and feritscope measurements. The shear tensile strength was determined, and the
fracture behavior of the samples was investigated. Clear influences of heat-treatment-induced
surface roughness on the joint geometry and strength were observed.
article_number: '1514'
author:
- first_name: André Till
full_name: Zeuner, André Till
last_name: Zeuner
- first_name: Lars
full_name: Ewenz, Lars
last_name: Ewenz
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Sebastian
full_name: Schöne, Sebastian
last_name: Schöne
- first_name: Uwe
full_name: Füssel, Uwe
last_name: Füssel
- first_name: Martina
full_name: Zimmermann, Martina
last_name: Zimmermann
citation:
ama: Zeuner AT, Ewenz L, Kalich J, Schöne S, Füssel U, Zimmermann M. The Influence
of Heat Treatment on the Microstructure, Surface Roughness and Shear Tensile Strength
of AISI 304 Clinch Joints. Metals. 2022;12(9). doi:10.3390/met12091514
apa: Zeuner, A. T., Ewenz, L., Kalich, J., Schöne, S., Füssel, U., & Zimmermann,
M. (2022). The Influence of Heat Treatment on the Microstructure, Surface Roughness
and Shear Tensile Strength of AISI 304 Clinch Joints. Metals, 12(9),
Article 1514. https://doi.org/10.3390/met12091514
bibtex: '@article{Zeuner_Ewenz_Kalich_Schöne_Füssel_Zimmermann_2022, title={The
Influence of Heat Treatment on the Microstructure, Surface Roughness and Shear
Tensile Strength of AISI 304 Clinch Joints}, volume={12}, DOI={10.3390/met12091514},
number={91514}, journal={Metals}, publisher={MDPI AG}, author={Zeuner, André Till
and Ewenz, Lars and Kalich, Jan and Schöne, Sebastian and Füssel, Uwe and Zimmermann,
Martina}, year={2022} }'
chicago: Zeuner, André Till, Lars Ewenz, Jan Kalich, Sebastian Schöne, Uwe Füssel,
and Martina Zimmermann. “The Influence of Heat Treatment on the Microstructure,
Surface Roughness and Shear Tensile Strength of AISI 304 Clinch Joints.” Metals
12, no. 9 (2022). https://doi.org/10.3390/met12091514.
ieee: 'A. T. Zeuner, L. Ewenz, J. Kalich, S. Schöne, U. Füssel, and M. Zimmermann,
“The Influence of Heat Treatment on the Microstructure, Surface Roughness and
Shear Tensile Strength of AISI 304 Clinch Joints,” Metals, vol. 12, no.
9, Art. no. 1514, 2022, doi: 10.3390/met12091514.'
mla: Zeuner, André Till, et al. “The Influence of Heat Treatment on the Microstructure,
Surface Roughness and Shear Tensile Strength of AISI 304 Clinch Joints.” Metals,
vol. 12, no. 9, 1514, MDPI AG, 2022, doi:10.3390/met12091514.
short: A.T. Zeuner, L. Ewenz, J. Kalich, S. Schöne, U. Füssel, M. Zimmermann, Metals
12 (2022).
date_created: 2022-12-06T19:25:49Z
date_updated: 2023-01-02T11:04:26Z
department:
- _id: '630'
doi: 10.3390/met12091514
intvolume: ' 12'
issue: '9'
keyword:
- General Materials Science
- Metals and Alloys
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/12/9/1514
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _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: '141'
name: 'TRR 285 – B02: TRR 285 - Subproject B02'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
status: public
title: The Influence of Heat Treatment on the Microstructure, Surface Roughness and
Shear Tensile Strength of AISI 304 Clinch Joints
type: journal_article
user_id: '14931'
volume: 12
year: '2022'
...
---
_id: '34249'
abstract:
- lang: eng
text: The trend towards lightweight design, driven by increasingly stringent emission
targets, poses challenges to conventional joining processes due to the different
mechanical properties of the joining partners used to manufacture multi-material
systems. For this reason, new versatile joining processes are in demand for joining
dissimilar materials. In this regard, pin joining with cold extruded pin structures
is a relatively new, two-stage joining process for joining materials such as high-strength
steel and aluminium as well as steel and fibre-reinforced plastic to multi-material
systems, without the need for auxiliary elements. Due to the novelty of the process,
there are currently only a few studies on the robustness of this joining process
available. Thus, limited statements on the stability of the joining process considering
uncertain process conditions, such as varying material properties or friction
values, can be provided. Motivated by this, the presented work investigates the
influence of different uncertain process parameters on the pin extrusion as well
as on the joining process itself, carrying out a systematic robustness analysis.
Therefore, the methodical approach covers the complete process chain of pin joining,
including the load-bearing capacity of the joint by means of numerical simulation
and data-driven methods. Thereby, a deeper understanding of the pin joining process
is generated and the versatility of the novel joining process is increased. Additionally,
the provision of manufacturing recommendations for the forming of pin joints leads
to a significant decrease in the failure probability caused by ploughing or buckling
effects.
article_number: '122'
author:
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
citation:
ama: Römisch D, Zirngibl C, Schleich B, Wartzack S, Merklein M. Robustness Analysis
of Pin Joining. Journal of Manufacturing and Materials Processing. 2022;6(5).
doi:10.3390/jmmp6050122
apa: Römisch, D., Zirngibl, C., Schleich, B., Wartzack, S., & Merklein, M. (2022).
Robustness Analysis of Pin Joining. Journal of Manufacturing and Materials
Processing, 6(5), Article 122. https://doi.org/10.3390/jmmp6050122
bibtex: '@article{Römisch_Zirngibl_Schleich_Wartzack_Merklein_2022, title={Robustness
Analysis of Pin Joining}, volume={6}, DOI={10.3390/jmmp6050122},
number={5122}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Römisch, David and Zirngibl, Christoph and Schleich, Benjamin and
Wartzack, Sandro and Merklein, Marion}, year={2022} }'
chicago: Römisch, David, Christoph Zirngibl, Benjamin Schleich, Sandro Wartzack,
and Marion Merklein. “Robustness Analysis of Pin Joining.” Journal of Manufacturing
and Materials Processing 6, no. 5 (2022). https://doi.org/10.3390/jmmp6050122.
ieee: 'D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, and M. Merklein, “Robustness
Analysis of Pin Joining,” Journal of Manufacturing and Materials Processing,
vol. 6, no. 5, Art. no. 122, 2022, doi: 10.3390/jmmp6050122.'
mla: Römisch, David, et al. “Robustness Analysis of Pin Joining.” Journal of
Manufacturing and Materials Processing, vol. 6, no. 5, 122, MDPI AG, 2022,
doi:10.3390/jmmp6050122.
short: D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, M. Merklein, Journal of
Manufacturing and Materials Processing 6 (2022).
date_created: 2022-12-06T19:03:30Z
date_updated: 2023-01-02T11:01:05Z
department:
- _id: '630'
doi: 10.3390/jmmp6050122
intvolume: ' 6'
issue: '5'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2504-4494/6/5/122
oa: '1'
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'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Robustness Analysis of Pin Joining
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34255'
abstract:
- lang: eng
text: Deformation of continuous fibre reinforced plastics during thermally-assisted
forming or joining processes leads to a change of the initial material structure.
The load behaviour of composite parts strongly depends on the resultant material
structure. The prediction of this material structure is a challenging task and
requires a deep knowledge of the material behaviour above melting temperature
and the occurring complex forming phenomena. Through this knowledge, the optimisation
of manufacturing parameters for a more efficient and reproducible process can
be enabled and are in the focus of many investigations. In the present paper,
a simplified pultrusion test rig is developed and presented to investigate the
deformation behaviour of a thermoplastic semi-finished fiber product in a forming
element. Therefore, different process parameters, like forming element temperature,
pulling velocity as well as the forming element geometry, are varied. The deformation
behaviour in the forming zone of the thermoplastic preimpregnated continuous glass
fibre-reinforced material is investigated by computed tomography and the resultant
pulling forces are measured. The results clearly show the correlation between
the forming element temperature and the resulting forces due to a change in the
viscosity of the thermoplastic matrix and the resulting fiber matrix interaction.
In addition, the evaluation of the measurement data shows which forming forces
are required to change the shape of the thermoplastic unidirectional material
with a rectangular cross-section to a round one.
article_number: '146'
author:
- first_name: Andreas
full_name: Borowski, Andreas
last_name: Borowski
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: René
full_name: Füßel, René
last_name: Füßel
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Borowski A, Gröger B, Füßel R, Gude M. Characterisation of Fibre Bundle Deformation
Behaviour—Test Rig, Results and Conclusions. Journal of Manufacturing and Materials
Processing. 2022;6(6). doi:10.3390/jmmp6060146
apa: Borowski, A., Gröger, B., Füßel, R., & Gude, M. (2022). Characterisation
of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions. Journal
of Manufacturing and Materials Processing, 6(6), Article 146. https://doi.org/10.3390/jmmp6060146
bibtex: '@article{Borowski_Gröger_Füßel_Gude_2022, title={Characterisation of Fibre
Bundle Deformation Behaviour—Test Rig, Results and Conclusions}, volume={6}, DOI={10.3390/jmmp6060146}, number={6146},
journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG},
author={Borowski, Andreas and Gröger, Benjamin and Füßel, René and Gude, Maik},
year={2022} }'
chicago: Borowski, Andreas, Benjamin Gröger, René Füßel, and Maik Gude. “Characterisation
of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions.” Journal
of Manufacturing and Materials Processing 6, no. 6 (2022). https://doi.org/10.3390/jmmp6060146.
ieee: 'A. Borowski, B. Gröger, R. Füßel, and M. Gude, “Characterisation of Fibre
Bundle Deformation Behaviour—Test Rig, Results and Conclusions,” Journal of
Manufacturing and Materials Processing, vol. 6, no. 6, Art. no. 146, 2022,
doi: 10.3390/jmmp6060146.'
mla: Borowski, Andreas, et al. “Characterisation of Fibre Bundle Deformation Behaviour—Test
Rig, Results and Conclusions.” Journal of Manufacturing and Materials Processing,
vol. 6, no. 6, 146, MDPI AG, 2022, doi:10.3390/jmmp6060146.
short: A. Borowski, B. Gröger, R. Füßel, M. Gude, Journal of Manufacturing and Materials
Processing 6 (2022).
date_created: 2022-12-06T20:38:11Z
date_updated: 2023-01-02T11:05:02Z
department:
- _id: '630'
doi: 10.3390/jmmp6060146
intvolume: ' 6'
issue: '6'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2504-4494/6/6/146
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and
Conclusions
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34248'
abstract:
- lang: eng
text: Pin extrusion is a common process to realise pin structures in different geometrical
dimensions for a subsequent joining operation. Nevertheless, the process of pin
extrusion offers process limits regarding sheet thinning as a consequence of the
punch penetration depth into the sheet. Thereby, cracks at the residual sheet
thickness can occur during strength tests, resulting in a failure of the complete
joint due to severe thinning. Therefore, measures have to be taken into account
to reduce the thinning. One possibility is the application of orbital formed tailored
blanks with a local material pre-distribution, which allows a higher sheet thickness
in the desired area. Within this contribution, the novel approach of a process
combination of orbital forming and pin extrusion is investigated. To reveal the
potential of a local material pre-distribution, conventional specimens are compared
with previously orbital formed components. Relevant parameters such as the residual
sheet thickness, the pin height as well as the average hardness values are compared.
The results show a significant positive influence of a local material pre-distribution
on the residual sheet thickness as well as the resulting pin height. Furthermore,
the strain hardening during orbital forming can be seen as an additional advantage.
To conclude the results, the process limits of conventional pin extrusion can
be expanded significantly by the application of specimens with a local material
pre-distribution.
article_number: '127'
author:
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Andreas
full_name: Hetzel, Andreas
last_name: Hetzel
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
citation:
ama: Römisch D, Hetzel A, Wituschek S, Lechner M, Merklein M. Pin Extrusion for
Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution.
Journal of Manufacturing and Materials Processing. 2022;6(6). doi:10.3390/jmmp6060127
apa: Römisch, D., Hetzel, A., Wituschek, S., Lechner, M., & Merklein, M. (2022).
Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with
Local Material Pre-Distribution. Journal of Manufacturing and Materials Processing,
6(6), Article 127. https://doi.org/10.3390/jmmp6060127
bibtex: '@article{Römisch_Hetzel_Wituschek_Lechner_Merklein_2022, title={Pin Extrusion
for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material
Pre-Distribution}, volume={6}, DOI={10.3390/jmmp6060127},
number={6127}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI
AG}, author={Römisch, David and Hetzel, Andreas and Wituschek, Simon and Lechner,
Michael and Merklein, Marion}, year={2022} }'
chicago: Römisch, David, Andreas Hetzel, Simon Wituschek, Michael Lechner, and Marion
Merklein. “Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks
with Local Material Pre-Distribution.” Journal of Manufacturing and Materials
Processing 6, no. 6 (2022). https://doi.org/10.3390/jmmp6060127.
ieee: 'D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, and M. Merklein, “Pin Extrusion
for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material
Pre-Distribution,” Journal of Manufacturing and Materials Processing, vol.
6, no. 6, Art. no. 127, 2022, doi: 10.3390/jmmp6060127.'
mla: Römisch, David, et al. “Pin Extrusion for Mechanical Joining from Orbital Formed
Tailored Blanks with Local Material Pre-Distribution.” Journal of Manufacturing
and Materials Processing, vol. 6, no. 6, 127, MDPI AG, 2022, doi:10.3390/jmmp6060127.
short: D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, M. Merklein, Journal of
Manufacturing and Materials Processing 6 (2022).
date_created: 2022-12-06T18:56:24Z
date_updated: 2023-01-02T11:01:34Z
department:
- _id: '630'
doi: 10.3390/jmmp6060127
intvolume: ' 6'
issue: '6'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
status: public
title: Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with
Local Material Pre-Distribution
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34247'
abstract:
- lang: eng
text: 'The paper presents research regarding a thermally supported multi-material
clinching process (hotclinching) for metal and thermoplastic composite (TPC) sheets:
an experimental approach to investigate the flow pressing phenomena during joining.
Therefore, an experimental setup is developed to compress the TPC-specimens in
out-of-plane direction with different initial TPC thicknesses and varying temperature
levels. The deformed specimens are analyzed with computed tomography to investigate
the resultant inner material structure at different compaction levels. The results
are compared in terms of force-compaction-curves and occurring phenomena during
compaction. The change of the material structure is characterized by sliding phenomena
and crack initiation and growth.'
article_number: '5039'
author:
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: David
full_name: Römisch, David
last_name: Römisch
- first_name: Martin
full_name: Kraus, Martin
last_name: Kraus
- first_name: Juliane
full_name: Troschitz, Juliane
last_name: Troschitz
- first_name: René
full_name: Füßel, René
last_name: Füßel
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gröger B, Römisch D, Kraus M, et al. Warmforming Flow Pressing Characteristics
of Continuous Fibre Reinforced Thermoplastic Composites. Polymers. 2022;14(22).
doi:10.3390/polym14225039
apa: Gröger, B., Römisch, D., Kraus, M., Troschitz, J., Füßel, R., Merklein, M.,
& Gude, M. (2022). Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites. Polymers, 14(22), Article
5039. https://doi.org/10.3390/polym14225039
bibtex: '@article{Gröger_Römisch_Kraus_Troschitz_Füßel_Merklein_Gude_2022, title={Warmforming
Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic Composites},
volume={14}, DOI={10.3390/polym14225039},
number={225039}, journal={Polymers}, publisher={MDPI AG}, author={Gröger, Benjamin
and Römisch, David and Kraus, Martin and Troschitz, Juliane and Füßel, René and
Merklein, Marion and Gude, Maik}, year={2022} }'
chicago: Gröger, Benjamin, David Römisch, Martin Kraus, Juliane Troschitz, René
Füßel, Marion Merklein, and Maik Gude. “Warmforming Flow Pressing Characteristics
of Continuous Fibre Reinforced Thermoplastic Composites.” Polymers 14,
no. 22 (2022). https://doi.org/10.3390/polym14225039.
ieee: 'B. Gröger et al., “Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites,” Polymers, vol. 14, no. 22,
Art. no. 5039, 2022, doi: 10.3390/polym14225039.'
mla: Gröger, Benjamin, et al. “Warmforming Flow Pressing Characteristics of Continuous
Fibre Reinforced Thermoplastic Composites.” Polymers, vol. 14, no. 22,
5039, MDPI AG, 2022, doi:10.3390/polym14225039.
short: B. Gröger, D. Römisch, M. Kraus, J. Troschitz, R. Füßel, M. Merklein, M.
Gude, Polymers 14 (2022).
date_created: 2022-12-06T18:51:19Z
date_updated: 2023-01-02T11:02:56Z
department:
- _id: '630'
doi: 10.3390/polym14225039
intvolume: ' 14'
issue: '22'
keyword:
- Polymers and Plastics
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Polymers
publication_identifier:
issn:
- 2073-4360
publication_status: published
publisher: MDPI AG
status: public
title: Warmforming Flow Pressing Characteristics of Continuous Fibre Reinforced Thermoplastic
Composites
type: journal_article
user_id: '14931'
volume: 14
year: '2022'
...
---
_id: '34256'
abstract:
- lang: eng
text: 'The 3D shear deformation and failure behaviour of a glass fibre reinforced
polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated.
An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used
to experimentally characterise the in-plane and out-of-plane behaviour utilising
three specimen configurations (12-, 13- and 31-direction). The experimental procedure
as well as the testing results are presented and discussed. The measured shear
stress–shear strain relations indicate a highly nonlinear behaviour and a distinct
rate dependency. Two methods are investigated to derive according material characteristics:
a classical engineering approach based on moduli and strengths and a data driven
approach based on the curve progression. In all cases a Johnson–Cook based formulation
is used to describe rate dependency. The analysis methodologies as well as the
derived model parameters are described and discussed in detail. It is shown that
a phenomenologically enhanced regression can be used to obtain material characteristics
for a generalising constitutive model based on the data driven approach.'
article_number: '318'
author:
- first_name: Johannes
full_name: Gerritzen, Johannes
last_name: Gerritzen
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: 'Gerritzen J, Hornig A, Gröger B, Gude M. A Data Driven Modelling Approach
for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters. Journal of Composites Science. 2022;6(10). doi:10.3390/jcs6100318'
apa: 'Gerritzen, J., Hornig, A., Gröger, B., & Gude, M. (2022). A Data Driven
Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure
of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and
Deriving Modelling Parameters. Journal of Composites Science, 6(10),
Article 318. https://doi.org/10.3390/jcs6100318'
bibtex: '@article{Gerritzen_Hornig_Gröger_Gude_2022, title={A Data Driven Modelling
Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters}, volume={6}, DOI={10.3390/jcs6100318},
number={10318}, journal={Journal of Composites Science}, publisher={MDPI AG},
author={Gerritzen, Johannes and Hornig, Andreas and Gröger, Benjamin and Gude,
Maik}, year={2022} }'
chicago: 'Gerritzen, Johannes, Andreas Hornig, Benjamin Gröger, and Maik Gude. “A
Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
and Deriving Modelling Parameters.” Journal of Composites Science 6, no.
10 (2022). https://doi.org/10.3390/jcs6100318.'
ieee: 'J. Gerritzen, A. Hornig, B. Gröger, and M. Gude, “A Data Driven Modelling
Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters,” Journal of Composites Science, vol. 6, no. 10, Art. no. 318,
2022, doi: 10.3390/jcs6100318.'
mla: 'Gerritzen, Johannes, et al. “A Data Driven Modelling Approach for the Strain
Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced
Composites: Experimental Characterisation and Deriving Modelling Parameters.”
Journal of Composites Science, vol. 6, no. 10, 318, MDPI AG, 2022, doi:10.3390/jcs6100318.'
short: J. Gerritzen, A. Hornig, B. Gröger, M. Gude, Journal of Composites Science
6 (2022).
date_created: 2022-12-06T20:42:38Z
date_updated: 2023-01-02T11:06:15Z
department:
- _id: '630'
doi: 10.3390/jcs6100318
intvolume: ' 6'
issue: '10'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2504-477X/6/10/318
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Journal of Composites Science
publication_identifier:
issn:
- 2504-477X
publication_status: published
publisher: MDPI AG
status: public
title: 'A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
and Deriving Modelling Parameters'
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34251'
abstract:
- lang: eng
text: Joining by forming operations presents powerful and complex joining techniques.
Clinching is a well-known joining process for use in sheet metalworking. Currently,
clinched joints are focusing on mechanically enhanced connections. Additionally,
the demand for integrating electrical requirements to transmit electrical currents
will be increased in the future. This integration is particularly important, for
instance, in the e-mobility sector. It enables connecting battery cells with electrical
joints of aluminum and copper. Systematic use of the process-specific advantages
of this joining method opens up the possibility to find and create electrically
optimized connections. The optimization for the transmission of electrical currents
will be demonstrated for clinched joints by adapting the tool geometry and the
clinched joint design. Based on a comparison of the electrical joint resistance,
the limit use temperature is defined for the joining materials used based on the
microstructural condition and the aging condition due to artificial aging. As
a result of the investigations carried out, reliable current transmission at a
constant conductor temperature of up to 120 °C can be achieved for clinched copper–copper
joints. In the case of pure aluminum joints and mixed joints of aluminum and copper,
long-term stable current transmission can be ensured up to a conductor temperature
of 100 °C.
article_number: '1651'
author:
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Marcus
full_name: Matzke, Marcus
last_name: Matzke
- first_name: Wolfgang
full_name: Pfeiffer, Wolfgang
last_name: Pfeiffer
- first_name: Stephan
full_name: Schlegel, Stephan
last_name: Schlegel
- first_name: Ludwig
full_name: Kornhuber, Ludwig
last_name: Kornhuber
- first_name: Uwe
full_name: Füssel, Uwe
last_name: Füssel
citation:
ama: Kalich J, Matzke M, Pfeiffer W, Schlegel S, Kornhuber L, Füssel U. Long-Term
Behavior of Clinched Electrical Contacts. Metals. 2022;12(10). doi:10.3390/met12101651
apa: Kalich, J., Matzke, M., Pfeiffer, W., Schlegel, S., Kornhuber, L., & Füssel,
U. (2022). Long-Term Behavior of Clinched Electrical Contacts. Metals,
12(10), Article 1651. https://doi.org/10.3390/met12101651
bibtex: '@article{Kalich_Matzke_Pfeiffer_Schlegel_Kornhuber_Füssel_2022, title={Long-Term
Behavior of Clinched Electrical Contacts}, volume={12}, DOI={10.3390/met12101651},
number={101651}, journal={Metals}, publisher={MDPI AG}, author={Kalich, Jan and
Matzke, Marcus and Pfeiffer, Wolfgang and Schlegel, Stephan and Kornhuber, Ludwig
and Füssel, Uwe}, year={2022} }'
chicago: Kalich, Jan, Marcus Matzke, Wolfgang Pfeiffer, Stephan Schlegel, Ludwig
Kornhuber, and Uwe Füssel. “Long-Term Behavior of Clinched Electrical Contacts.”
Metals 12, no. 10 (2022). https://doi.org/10.3390/met12101651.
ieee: 'J. Kalich, M. Matzke, W. Pfeiffer, S. Schlegel, L. Kornhuber, and U. Füssel,
“Long-Term Behavior of Clinched Electrical Contacts,” Metals, vol. 12,
no. 10, Art. no. 1651, 2022, doi: 10.3390/met12101651.'
mla: Kalich, Jan, et al. “Long-Term Behavior of Clinched Electrical Contacts.” Metals,
vol. 12, no. 10, 1651, MDPI AG, 2022, doi:10.3390/met12101651.
short: J. Kalich, M. Matzke, W. Pfeiffer, S. Schlegel, L. Kornhuber, U. Füssel,
Metals 12 (2022).
date_created: 2022-12-06T19:20:46Z
date_updated: 2023-01-02T11:06:35Z
department:
- _id: '630'
doi: 10.3390/met12101651
intvolume: ' 12'
issue: '10'
keyword:
- General Materials Science
- Metals and Alloys
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/12/10/1651
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
status: public
title: Long-Term Behavior of Clinched Electrical Contacts
type: journal_article
user_id: '14931'
volume: 12
year: '2022'
...
---
_id: '34254'
abstract:
- lang: eng
text: A virtual test setup for investigating single fibres in a transverse shear
flow based on a parallel-plate rheometer is presented. The investigations are
carried out to verify a numerical representation of the fluid–structure interaction
(FSI), where Arbitrary Lagrangian–Eulerian (ALE) and computational fluid dynamics
(CFD) methods are used and evaluated. Both are suitable to simulate flexible solid
structures in a transverse shear flow. Comparative investigations with different
model setups and increasing complexity are presented. It is shown, that the CFD
method with an interface-based coupling approach is not capable of handling small
fibre diameters in comparison to large fluid domains due to mesh dependencies
at the interface definitions. The ALE method is more suited for this task since
fibres are embedded without any mesh restrictions. Element types beam, solid,
and discrete are considered for fibre modelling. It is shown that the beam formulation
for ALE and 3D solid elements for the CFD method are the preferred options.
article_number: '7241'
author:
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Jingjing
full_name: Wang, Jingjing
last_name: Wang
- first_name: Tim
full_name: Bätzel, Tim
last_name: Bätzel
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gröger B, Wang J, Bätzel T, Hornig A, Gude M. Modelling and Simulation Strategies
for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt and Single
Fibres—A Numerical Study. Materials. 2022;15(20). doi:10.3390/ma15207241
apa: Gröger, B., Wang, J., Bätzel, T., Hornig, A., & Gude, M. (2022). Modelling
and Simulation Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic
Melt and Single Fibres—A Numerical Study. Materials, 15(20), Article
7241. https://doi.org/10.3390/ma15207241
bibtex: '@article{Gröger_Wang_Bätzel_Hornig_Gude_2022, title={Modelling and Simulation
Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt
and Single Fibres—A Numerical Study}, volume={15}, DOI={10.3390/ma15207241},
number={207241}, journal={Materials}, publisher={MDPI AG}, author={Gröger, Benjamin
and Wang, Jingjing and Bätzel, Tim and Hornig, Andreas and Gude, Maik}, year={2022}
}'
chicago: Gröger, Benjamin, Jingjing Wang, Tim Bätzel, Andreas Hornig, and Maik Gude.
“Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly
Viscous Thermoplastic Melt and Single Fibres—A Numerical Study.” Materials
15, no. 20 (2022). https://doi.org/10.3390/ma15207241.
ieee: 'B. Gröger, J. Wang, T. Bätzel, A. Hornig, and M. Gude, “Modelling and Simulation
Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt
and Single Fibres—A Numerical Study,” Materials, vol. 15, no. 20, Art.
no. 7241, 2022, doi: 10.3390/ma15207241.'
mla: Gröger, Benjamin, et al. “Modelling and Simulation Strategies for Fluid–Structure-Interactions
of Highly Viscous Thermoplastic Melt and Single Fibres—A Numerical Study.” Materials,
vol. 15, no. 20, 7241, MDPI AG, 2022, doi:10.3390/ma15207241.
short: B. Gröger, J. Wang, T. Bätzel, A. Hornig, M. Gude, Materials 15 (2022).
date_created: 2022-12-06T20:33:11Z
date_updated: 2023-01-02T11:06:58Z
department:
- _id: '630'
doi: 10.3390/ma15207241
intvolume: ' 15'
issue: '20'
keyword:
- General Materials Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/1996-1944/15/20/7241
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Materials
publication_identifier:
issn:
- 1996-1944
publication_status: published
publisher: MDPI AG
status: public
title: Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly
Viscous Thermoplastic Melt and Single Fibres—A Numerical Study
type: journal_article
user_id: '14931'
volume: 15
year: '2022'
...
---
_id: '34250'
abstract:
- lang: eng
text: As a joining-by-forming process, clinching and the use of functional elements
enable low-energy joining of components through form, force, and, under certain
conditions, material closure. In addition to the transmission of mechanical forces,
these joining processes can be qualified for additional electrical contact within
the scope of functional integration for electro-mobile applications. For this
purpose, maximizing the force and material closure is necessary to ensure a long-term,
stable transmission of electrical currents. To this end, the electrical properties
of the joints were optimized. The investigations carried out show the long-term
behavior under normal operating conditions and the short-circuit case.
author:
- first_name: Uwe
full_name: Füssel, Uwe
last_name: Füssel
- first_name: Stephan
full_name: Schlegel, Stephan
last_name: Schlegel
- first_name: Gregor
full_name: Reschke, Gregor
last_name: Reschke
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
citation:
ama: 'Füssel U, Schlegel S, Reschke G, Kalich J. Electrical Contacting of Aluminum
Bus Bars Using Clinching and Functional Elements. In: SFU/ICAFT 2022. MDPI;
2022. doi:10.3390/engproc2022026005'
apa: Füssel, U., Schlegel, S., Reschke, G., & Kalich, J. (2022). Electrical
Contacting of Aluminum Bus Bars Using Clinching and Functional Elements. SFU/ICAFT
2022. https://doi.org/10.3390/engproc2022026005
bibtex: '@inproceedings{Füssel_Schlegel_Reschke_Kalich_2022, title={Electrical Contacting
of Aluminum Bus Bars Using Clinching and Functional Elements}, DOI={10.3390/engproc2022026005},
booktitle={SFU/ICAFT 2022}, publisher={MDPI}, author={Füssel, Uwe and Schlegel,
Stephan and Reschke, Gregor and Kalich, Jan}, year={2022} }'
chicago: Füssel, Uwe, Stephan Schlegel, Gregor Reschke, and Jan Kalich. “Electrical
Contacting of Aluminum Bus Bars Using Clinching and Functional Elements.” In SFU/ICAFT
2022. MDPI, 2022. https://doi.org/10.3390/engproc2022026005.
ieee: 'U. Füssel, S. Schlegel, G. Reschke, and J. Kalich, “Electrical Contacting
of Aluminum Bus Bars Using Clinching and Functional Elements,” 2022, doi: 10.3390/engproc2022026005.'
mla: Füssel, Uwe, et al. “Electrical Contacting of Aluminum Bus Bars Using Clinching
and Functional Elements.” SFU/ICAFT 2022, MDPI, 2022, doi:10.3390/engproc2022026005.
short: 'U. Füssel, S. Schlegel, G. Reschke, J. Kalich, in: SFU/ICAFT 2022, MDPI,
2022.'
date_created: 2022-12-06T19:12:23Z
date_updated: 2023-01-02T11:09:44Z
department:
- _id: '630'
doi: 10.3390/engproc2022026005
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
publication: SFU/ICAFT 2022
publication_status: published
publisher: MDPI
status: public
title: Electrical Contacting of Aluminum Bus Bars Using Clinching and Functional Elements
type: conference
user_id: '14931'
year: '2022'
...
---
_id: '34414'
abstract:
- lang: eng
text: Given a steadily increasing demand on multi-material lightweight designs,
fast and cost-efficient production technologies, such as the mechanical joining
process clinching, are becoming more and more relevant for series production.
Since the application of such joining techniques often base on the ability to
reach similar or even better joint loading capacities compared to established
joining processes (e.g., spot welding), few contributions investigated the systematic
improvement of clinch joint characteristics. In this regard, the use of data-driven
methods in combination with optimization algorithms showed already high potentials
for the analysis of individual joints and the definition of optimal tool configurations.
However, the often missing consideration of uncertainties, such as varying material
properties, and the related calculation of their impact on clinch joint properties
can lead to poor estimation results and thus to a decreased reliability of the
entire joint connection. This can cause major challenges, especially for the design
and dimensioning of safety-relevant components, such as in car bodies. Motivated
by this, the presented contribution introduces a novel method for the robust estimation
of clinch joint characteristics including uncertainties of varying and versatile
process chains in mechanical joining. Therefore, the utilization of Gaussian process
regression models is demonstrated and evaluated regarding the ability to achieve
sufficient prediction qualities.
author:
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
citation:
ama: Zirngibl C, Schleich B, Wartzack S. Robust estimation of clinch joint characteristics
based on data-driven methods. The International Journal of Advanced Manufacturing
Technology. Published online 2022. doi:10.1007/s00170-022-10441-7
apa: Zirngibl, C., Schleich, B., & Wartzack, S. (2022). Robust estimation of
clinch joint characteristics based on data-driven methods. The International
Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-022-10441-7
bibtex: '@article{Zirngibl_Schleich_Wartzack_2022, title={Robust estimation of clinch
joint characteristics based on data-driven methods}, DOI={10.1007/s00170-022-10441-7},
journal={The International Journal of Advanced Manufacturing Technology}, publisher={Springer
Science and Business Media LLC}, author={Zirngibl, Christoph and Schleich, Benjamin
and Wartzack, Sandro}, year={2022} }'
chicago: Zirngibl, Christoph, Benjamin Schleich, and Sandro Wartzack. “Robust Estimation
of Clinch Joint Characteristics Based on Data-Driven Methods.” The International
Journal of Advanced Manufacturing Technology, 2022. https://doi.org/10.1007/s00170-022-10441-7.
ieee: 'C. Zirngibl, B. Schleich, and S. Wartzack, “Robust estimation of clinch joint
characteristics based on data-driven methods,” The International Journal of
Advanced Manufacturing Technology, 2022, doi: 10.1007/s00170-022-10441-7.'
mla: Zirngibl, Christoph, et al. “Robust Estimation of Clinch Joint Characteristics
Based on Data-Driven Methods.” The International Journal of Advanced Manufacturing
Technology, Springer Science and Business Media LLC, 2022, doi:10.1007/s00170-022-10441-7.
short: C. Zirngibl, B. Schleich, S. Wartzack, The International Journal of Advanced
Manufacturing Technology (2022).
date_created: 2022-12-14T12:24:29Z
date_updated: 2023-01-02T11:14:26Z
department:
- _id: '630'
doi: 10.1007/s00170-022-10441-7
keyword:
- Industrial and Manufacturing Engineering
- Computer Science Applications
- Mechanical Engineering
- Software
- Control and Systems Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s00170-022-10441-7
oa: '1'
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: The International Journal of Advanced Manufacturing Technology
publication_identifier:
issn:
- 0268-3768
- 1433-3015
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Robust estimation of clinch joint characteristics based on data-driven methods
type: journal_article
user_id: '14931'
year: '2022'
...
---
_id: '34468'
abstract:
- lang: ger
text: Multiprofessionelle Kooperation zwischen allgemeinen und sonderpädagogischen
Lehrkräften und mit weiteren Fachkräften, u.a. der Schulsozialarbeit, der Schulpsychologie
und mit Schulbegleitungen, gilt bei der Entwicklung inklusiver Schulen als zentrale
Stellschraube. Dementsprechend wird Kooperation im Kontext Schule auch in der
universitären Ausbildung von zukünftig miteinander kooperierenden Professionen
sowie in Fortbildungen für Lehrkräfte und multiprofessionelle Teams verstärkt
ins Blickfeld gerückt. Zugleich lässt sich beobachten, dass in inklusiven Schulen
bislang vermeintlich klare Zuständigkeiten, insbesondere zwischen Sonder- und
Sozialpädagog*innen, aufweichen und neu austariert werden müssen. Bei der Entwicklung
multiprofessioneller Teams gilt die Klärung von Rollen und Aufgaben als eine besondere
Herausforderung, wenn unterschiedliche Professionen mit unterschiedlichen institutionellen
Anbindungen und pädagogischen Zielperspektiven oder Grundhaltungen mitei-nander
kooperieren. Das vorgestellte Instrument – der Rollenhut – dient dazu, in multiprofessionellen
Gruppen eine individuelle Reflexion über die eigenen Aufgaben anzustoßen und auf
dieser Grundlage gemeinsam über die gegenseitigen Erwartungen und Rollen zu diskutieren.
Das Instrument wurde im Kontext von Fortbildungen multiprofessioneller Teams an
Schulen konzipiert und auch im Rahmen der universitären Lehrer*innenbildung erprobt.
author:
- first_name: Phillip
full_name: Neumann, Phillip
id: '95559'
last_name: Neumann
- first_name: Benedikt
full_name: Hopmann, Benedikt
last_name: Hopmann
- first_name: Birgit
full_name: Lütje-Klose, Birgit
last_name: Lütje-Klose
citation:
ama: Neumann P, Hopmann B, Lütje-Klose B. Der Rollenhut als Vermittlungsmedium -
Rollenklärungsprozesse im Kontext multiprofessioneller Kooperationen als Thema
universitärer Aus- und Fortbildungen von Lehrkräften und Sozialpädagog*innen.
Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption, Gestaltung
und Diskussion. 2022;5(1):13-25. doi:10.11576/HLZ-4949
apa: Neumann, P., Hopmann, B., & Lütje-Klose, B. (2022). Der Rollenhut als Vermittlungsmedium
- Rollenklärungsprozesse im Kontext multiprofessioneller Kooperationen als Thema
universitärer Aus- und Fortbildungen von Lehrkräften und Sozialpädagog*innen.
Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption, Gestaltung
und Diskussion, 5(1), 13–25. https://doi.org/10.11576/HLZ-4949
bibtex: '@article{Neumann_Hopmann_Lütje-Klose_2022, title={Der Rollenhut als Vermittlungsmedium
- Rollenklärungsprozesse im Kontext multiprofessioneller Kooperationen als Thema
universitärer Aus- und Fortbildungen von Lehrkräften und Sozialpädagog*innen},
volume={5}, DOI={10.11576/HLZ-4949},
number={1}, journal={Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption,
Gestaltung und Diskussion}, author={Neumann, Phillip and Hopmann, Benedikt and
Lütje-Klose, Birgit}, year={2022}, pages={13–25} }'
chicago: 'Neumann, Phillip, Benedikt Hopmann, and Birgit Lütje-Klose. “Der Rollenhut
als Vermittlungsmedium - Rollenklärungsprozesse im Kontext multiprofessioneller
Kooperationen als Thema universitärer Aus- und Fortbildungen von Lehrkräften und
Sozialpädagog*innen.” Herausforderung Lehrer*innenbildung - Zeitschrift zur
Konzeption, Gestaltung und Diskussion 5, no. 1 (2022): 13–25. https://doi.org/10.11576/HLZ-4949.'
ieee: 'P. Neumann, B. Hopmann, and B. Lütje-Klose, “Der Rollenhut als Vermittlungsmedium
- Rollenklärungsprozesse im Kontext multiprofessioneller Kooperationen als Thema
universitärer Aus- und Fortbildungen von Lehrkräften und Sozialpädagog*innen,”
Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption, Gestaltung
und Diskussion, vol. 5, no. 1, pp. 13–25, 2022, doi: 10.11576/HLZ-4949.'
mla: Neumann, Phillip, et al. “Der Rollenhut als Vermittlungsmedium - Rollenklärungsprozesse
im Kontext multiprofessioneller Kooperationen als Thema universitärer Aus- und
Fortbildungen von Lehrkräften und Sozialpädagog*innen.” Herausforderung Lehrer*innenbildung
- Zeitschrift zur Konzeption, Gestaltung und Diskussion, vol. 5, no. 1, 2022,
pp. 13–25, doi:10.11576/HLZ-4949.
short: P. Neumann, B. Hopmann, B. Lütje-Klose, Herausforderung Lehrer*innenbildung
- Zeitschrift zur Konzeption, Gestaltung und Diskussion 5 (2022) 13–25.
date_created: 2022-12-16T14:37:05Z
date_updated: 2023-01-10T19:40:36Z
ddc:
- '370'
department:
- _id: '479'
doi: 10.11576/HLZ-4949
extern: '1'
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.herausforderung-lehrerinnenbildung.de/index.php/hlz/article/view/4949
oa: '1'
page: 13-25
publication: Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption, Gestaltung
und Diskussion
publication_identifier:
eissn:
- 2625-0675
publication_status: published
status: public
title: Der Rollenhut als Vermittlungsmedium - Rollenklärungsprozesse im Kontext multiprofessioneller
Kooperationen als Thema universitärer Aus- und Fortbildungen von Lehrkräften und
Sozialpädagog*innen
type: journal_article
user_id: '95559'
volume: 5
year: '2022'
...
---
_id: '34461'
abstract:
- lang: eng
text: Teaching is a highly demanding profession that requires handling multiple
and potentially contradictory goals. Therefore, it is likely that teachers experience
conflict between work-related goals on a daily basis. Intraindividual goal conflict
may occur when individuals pursue multiple goals drawing on the same limited resources
(resource-based goal conflict), or when two or more goals are incompatible in
terms of goal attainment strategy or desired end states (inherent goal conflict).
Because goal conflict is typically associated with negative effects such as attenuated
motivation and wellbeing, teacher goal conflict may jeopardize teaching motivation.
This cross-sectional study investigated the effects of in-service teachers’ (N
= 302) goal conflicts on their autonomous (intrinsic and identified regulation)
and controlled (introjected and extrinsic regulation) teaching motivation and
tested the satisfaction of teachers’ basic need for autonomy, competence, and
relatedness as mediators. In line with our hypotheses, results from structural
equation modeling showed that frequently experiencing resource-based goal conflict
leads to a lower satisfaction of the basic need for autonomy, which, however,
was unrelated to teaching motivation. In contrast, frequently experiencing inherent
goal conflict attenuates the satisfaction of the basic need for competence, which,
in turn, positively predicted autonomous teaching motivation and negatively predicted
extrinsic regulation. As expected, relatedness was not associated with the experience
of goal conflict. The discussion focuses on differential effects of the two types
of goal conflict on teaching motivation and on the relevance to expand research
on teachers’ intraindividual goal conflicts.
author:
- first_name: Julia
full_name: Gorges, Julia
last_name: Gorges
- first_name: Phillip
full_name: Neumann, Phillip
id: '95559'
last_name: Neumann
- first_name: Jan Christoph
full_name: Störtländer, Jan Christoph
last_name: Störtländer
citation:
ama: 'Gorges J, Neumann P, Störtländer JC. Teachers Between a Rock and a Hard Place:
Goal Conflicts Affect Teaching Motivation Mediated by Basic Need Satisfaction.
Frontiers in Psychology. 2022;13. doi:10.3389/fpsyg.2022.876521'
apa: 'Gorges, J., Neumann, P., & Störtländer, J. C. (2022). Teachers Between
a Rock and a Hard Place: Goal Conflicts Affect Teaching Motivation Mediated by
Basic Need Satisfaction. Frontiers in Psychology, 13. https://doi.org/10.3389/fpsyg.2022.876521'
bibtex: '@article{Gorges_Neumann_Störtländer_2022, title={Teachers Between a Rock
and a Hard Place: Goal Conflicts Affect Teaching Motivation Mediated by Basic
Need Satisfaction}, volume={13}, DOI={10.3389/fpsyg.2022.876521},
journal={Frontiers in Psychology}, publisher={Frontiers Media SA}, author={Gorges,
Julia and Neumann, Phillip and Störtländer, Jan Christoph}, year={2022} }'
chicago: 'Gorges, Julia, Phillip Neumann, and Jan Christoph Störtländer. “Teachers
Between a Rock and a Hard Place: Goal Conflicts Affect Teaching Motivation Mediated
by Basic Need Satisfaction.” Frontiers in Psychology 13 (2022). https://doi.org/10.3389/fpsyg.2022.876521.'
ieee: 'J. Gorges, P. Neumann, and J. C. Störtländer, “Teachers Between a Rock and
a Hard Place: Goal Conflicts Affect Teaching Motivation Mediated by Basic Need
Satisfaction,” Frontiers in Psychology, vol. 13, 2022, doi: 10.3389/fpsyg.2022.876521.'
mla: 'Gorges, Julia, et al. “Teachers Between a Rock and a Hard Place: Goal Conflicts
Affect Teaching Motivation Mediated by Basic Need Satisfaction.” Frontiers
in Psychology, vol. 13, Frontiers Media SA, 2022, doi:10.3389/fpsyg.2022.876521.'
short: J. Gorges, P. Neumann, J.C. Störtländer, Frontiers in Psychology 13 (2022).
date_created: 2022-12-16T11:56:33Z
date_updated: 2023-01-10T19:39:38Z
ddc:
- '370'
department:
- _id: '479'
doi: 10.3389/fpsyg.2022.876521
extern: '1'
has_accepted_license: '1'
intvolume: ' 13'
keyword:
- General Psychology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.frontiersin.org/articles/10.3389/fpsyg.2022.876521/full
oa: '1'
publication: Frontiers in Psychology
publication_identifier:
issn:
- 1664-1078
publication_status: published
publisher: Frontiers Media SA
status: public
title: 'Teachers Between a Rock and a Hard Place: Goal Conflicts Affect Teaching Motivation
Mediated by Basic Need Satisfaction'
type: journal_article
user_id: '95559'
volume: 13
year: '2022'
...
---
_id: '34289'
author:
- first_name: Julia
full_name: Gorges, Julia
last_name: Gorges
- first_name: Phillip
full_name: Neumann, Phillip
id: '95559'
last_name: Neumann
- first_name: Elke
full_name: Wild, Elke
last_name: Wild
- first_name: Birgit
full_name: Lütje-Klose, Birgit
last_name: Lütje-Klose
- first_name: Sandra
full_name: Grüter, Sandra
last_name: Grüter
- first_name: Antonia
full_name: Weber, Antonia
last_name: Weber
- first_name: Jonathan
full_name: Senior, Jonathan
last_name: Senior
citation:
ama: 'Gorges J, Neumann P, Wild E, et al. Bielefelder Fortbildungskonzept zur
Kooperation in inklusiven Schulen (BiFoKi) : Technical Report V. 1.0. Univ.
Bielefeld, Abteilung für Psychologie & Fakultät für Erziehungswissenschaft;
2022. doi:10.4119/unibi/2962493'
apa: 'Gorges, J., Neumann, P., Wild, E., Lütje-Klose, B., Grüter, S., Weber, A.,
& Senior, J. (2022). Bielefelder Fortbildungskonzept zur Kooperation in
inklusiven Schulen (BiFoKi) : Technical Report V. 1.0. Univ. Bielefeld, Abteilung
für Psychologie & Fakultät für Erziehungswissenschaft. https://doi.org/10.4119/unibi/2962493'
bibtex: '@book{Gorges_Neumann_Wild_Lütje-Klose_Grüter_Weber_Senior_2022, place={Bielefeld},
title={Bielefelder Fortbildungskonzept zur Kooperation in inklusiven Schulen (BiFoKi) :
Technical Report V. 1.0}, DOI={10.4119/unibi/2962493},
publisher={Univ. Bielefeld, Abteilung für Psychologie & Fakultät für Erziehungswissenschaft},
author={Gorges, Julia and Neumann, Phillip and Wild, Elke and Lütje-Klose, Birgit
and Grüter, Sandra and Weber, Antonia and Senior, Jonathan}, year={2022} }'
chicago: 'Gorges, Julia, Phillip Neumann, Elke Wild, Birgit Lütje-Klose, Sandra
Grüter, Antonia Weber, and Jonathan Senior. Bielefelder Fortbildungskonzept
zur Kooperation in inklusiven Schulen (BiFoKi) : Technical Report V. 1.0.
Bielefeld: Univ. Bielefeld, Abteilung für Psychologie & Fakultät für Erziehungswissenschaft,
2022. https://doi.org/10.4119/unibi/2962493.'
ieee: 'J. Gorges et al., Bielefelder Fortbildungskonzept zur Kooperation
in inklusiven Schulen (BiFoKi) : Technical Report V. 1.0. Bielefeld: Univ.
Bielefeld, Abteilung für Psychologie & Fakultät für Erziehungswissenschaft,
2022.'
mla: 'Gorges, Julia, et al. Bielefelder Fortbildungskonzept zur Kooperation in
inklusiven Schulen (BiFoKi) : Technical Report V. 1.0. Univ. Bielefeld, Abteilung
für Psychologie & Fakultät für Erziehungswissenschaft, 2022, doi:10.4119/unibi/2962493.'
short: 'J. Gorges, P. Neumann, E. Wild, B. Lütje-Klose, S. Grüter, A. Weber, J.
Senior, Bielefelder Fortbildungskonzept zur Kooperation in inklusiven Schulen
(BiFoKi) : Technical Report V. 1.0, Univ. Bielefeld, Abteilung für Psychologie
& Fakultät für Erziehungswissenschaft, Bielefeld, 2022.'
date_created: 2022-12-08T13:32:07Z
date_updated: 2023-01-10T19:34:49Z
ddc:
- '370'
doi: 10.4119/unibi/2962493
extern: '1'
has_accepted_license: '1'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://pub.uni-bielefeld.de/download/2962493/2962615/Technical%20Report_BiFoKi_Extern_27-04-2022.pdf
oa: '1'
page: '162'
place: Bielefeld
publication_status: published
publisher: Univ. Bielefeld, Abteilung für Psychologie & Fakultät für Erziehungswissenschaft
status: public
title: 'Bielefelder Fortbildungskonzept zur Kooperation in inklusiven Schulen (BiFoKi)
: Technical Report V. 1.0'
type: report
user_id: '95559'
year: '2022'
...