--- _id: '36555' abstract: - lang: ger text: Die Hochschuldidaktik wurde in den letzten zehn Jahren flächendeckend an deutschen Hochschulen ausgebaut, da die Qualität der Lehre als Faktor im nationalen wie auch internationalen Wettbewerb der Hochschulen angesehen wird. In diesem Beitrag wird untersucht, wie sich dieser Ausbau mikropolitisch in der Arena Hochschule niederschlägt. Hierzu wurden eine systematische Literaturauswahl durchgeführt und mittels qualitativer Inhaltsanalyse einschlägige Texte der Hochschuldidaktiker:innen analysiert. Für die theoriegeleitete qualitative Inhaltsanalyse wurden als deduktive Kategorien die von Crozier und Friedberg (1993) benannten Machtquellen Expertise, Kommunikations- und Informationsflüsse, organisationale Regeln und Umweltkontakte verwendet. Fazit der Untersuchung ist, dass die Hochschuldidaktik zwar viele Stellen hinzugewonnen hat, es allerdings kaum einen Zuwachs an Macht gab, der nun in die Entscheidungs- und Aushandlungsprozesse innerhalb der Hochschulen eingebracht werden könnte. author: - first_name: Isabel full_name: Steinhardt, Isabel id: '90339' last_name: Steinhardt orcid: https://orcid.org/0000-0002-2590-6189 citation: ama: 'Steinhardt I. Hochschulinnenpolitik. Mikropolitische Verhältnisse der Hochschuldidaktik. In: Kordts-Freudinger R, Schaper N, Scholkmann A, Szczyrba B, eds. Handbuch Hochschuldidaktik. utb; 2021:469-482.' apa: Steinhardt, I. (2021). Hochschulinnenpolitik. Mikropolitische Verhältnisse der Hochschuldidaktik. In R. Kordts-Freudinger, N. Schaper, A. Scholkmann, & B. Szczyrba (Eds.), Handbuch Hochschuldidaktik (pp. 469–482). utb. bibtex: '@inbook{Steinhardt_2021, place={Stuttgart}, title={Hochschulinnenpolitik. Mikropolitische Verhältnisse der Hochschuldidaktik}, booktitle={Handbuch Hochschuldidaktik}, publisher={utb}, author={Steinhardt, Isabel}, editor={Kordts-Freudinger, Robert and Schaper, Niclas and Scholkmann, Antonia and Szczyrba, Birgit}, year={2021}, pages={469–482} }' chicago: 'Steinhardt, Isabel. “Hochschulinnenpolitik. Mikropolitische Verhältnisse Der Hochschuldidaktik.” In Handbuch Hochschuldidaktik, edited by Robert Kordts-Freudinger, Niclas Schaper, Antonia Scholkmann, and Birgit Szczyrba, 469–82. Stuttgart: utb, 2021.' ieee: 'I. Steinhardt, “Hochschulinnenpolitik. Mikropolitische Verhältnisse der Hochschuldidaktik,” in Handbuch Hochschuldidaktik, R. Kordts-Freudinger, N. Schaper, A. Scholkmann, and B. Szczyrba, Eds. Stuttgart: utb, 2021, pp. 469–482.' mla: Steinhardt, Isabel. “Hochschulinnenpolitik. Mikropolitische Verhältnisse Der Hochschuldidaktik.” Handbuch Hochschuldidaktik, edited by Robert Kordts-Freudinger et al., utb, 2021, pp. 469–82. short: 'I. Steinhardt, in: R. Kordts-Freudinger, N. Schaper, A. Scholkmann, B. Szczyrba (Eds.), Handbuch Hochschuldidaktik, utb, Stuttgart, 2021, pp. 469–482.' date_created: 2023-01-13T09:46:37Z date_updated: 2023-01-13T09:46:42Z editor: - first_name: Robert full_name: Kordts-Freudinger, Robert last_name: Kordts-Freudinger - first_name: Niclas full_name: Schaper, Niclas last_name: Schaper - first_name: Antonia full_name: Scholkmann, Antonia last_name: Scholkmann - first_name: Birgit full_name: Szczyrba, Birgit last_name: Szczyrba extern: '1' keyword: - Mikropolitik - Macht - Machtquellen - Positionseffekte - Hochschuldidaktik language: - iso: eng page: 469-482 place: Stuttgart publication: Handbuch Hochschuldidaktik publication_identifier: isbn: - '9783825254087' publisher: utb status: public title: Hochschulinnenpolitik. Mikropolitische Verhältnisse der Hochschuldidaktik type: book_chapter user_id: '90339' year: '2021' ... --- _id: '36701' abstract: - lang: eng text: "Nowadays, mobility and transience are no longer exclusively associated with the marginalized and socially excluded, such as homeless or displaced people. On the contrary, mobility and transience have become a constitutive pattern of the highly skilled postmodern workforce. Yet, how mobile professionals negotiate the meaning of their homes in â\x80\x98liquid timesâ\x80\x99 and what homemaking practices they use to deal with the temporal uncertainty of their homes are questions that still require further research. This article â\x80\x93 based on ethnographic research on German and American managers conducted in China, Germany and the United States between 2011 and 2014 â\x80\x93 contributes to this research question by examining how mobile professionals make sense of the transience of their current homes and how transience is reflected in their homemaking practices. The article argues that for mobile professionals the home becomes a critical place not only because of new multilocal spatialities but also because of new transient temporalities. Due to the corporate practice of giving successive temporary contracts, the mobile managersâ\x80\x99 everyday life is characterized by a â\x80\x98permanent provisionalityâ\x80\x99, that is, an incongruence of the initially imagined and the actual time horizons of their mobility. This article shows how this â\x80\x98permanent provisionalityâ\x80\x99 is worked into the material and social textures of expatriate homes." author: - first_name: Anna full_name: Spiegel, Anna id: '97205' last_name: Spiegel orcid: 0000-0002-4326-8141 citation: ama: 'Spiegel A. Permanent provisionality: The homes of mobile managerial professionals between temporariness and permanence. Transitions: Journal of Transient Migration . 2021;5(2):89-108. doi:https://doi.org/10.1386/tjtm_00034_1' apa: 'Spiegel, A. (2021). Permanent provisionality: The homes of mobile managerial professionals between temporariness and permanence. Transitions: Journal of Transient Migration , 5(2), 89–108. https://doi.org/10.1386/tjtm_00034_1' bibtex: '@article{Spiegel_2021, title={Permanent provisionality: The homes of mobile managerial professionals between temporariness and permanence}, volume={5}, DOI={https://doi.org/10.1386/tjtm_00034_1}, number={2}, journal={Transitions: Journal of Transient Migration }, author={Spiegel, Anna}, year={2021}, pages={89–108} }' chicago: 'Spiegel, Anna. “Permanent Provisionality: The Homes of Mobile Managerial Professionals between Temporariness and Permanence.” Transitions: Journal of Transient Migration 5, no. 2 (2021): 89–108. https://doi.org/10.1386/tjtm_00034_1.' ieee: 'A. Spiegel, “Permanent provisionality: The homes of mobile managerial professionals between temporariness and permanence,” Transitions: Journal of Transient Migration , vol. 5, no. 2, pp. 89–108, 2021, doi: https://doi.org/10.1386/tjtm_00034_1.' mla: 'Spiegel, Anna. “Permanent Provisionality: The Homes of Mobile Managerial Professionals between Temporariness and Permanence.” Transitions: Journal of Transient Migration , vol. 5, no. 2, 2021, pp. 89–108, doi:https://doi.org/10.1386/tjtm_00034_1.' short: 'A. Spiegel, Transitions: Journal of Transient Migration 5 (2021) 89–108.' date_created: 2023-01-13T12:14:05Z date_updated: 2023-01-13T12:16:59Z doi: https://doi.org/10.1386/tjtm_00034_1 intvolume: ' 5' issue: '2' language: - iso: eng page: 89-108 publication: 'Transitions: Journal of Transient Migration ' publication_identifier: issn: - 2397-7140 publication_status: published quality_controlled: '1' status: public title: 'Permanent provisionality: The homes of mobile managerial professionals between temporariness and permanence' type: journal_article user_id: '97205' volume: 5 year: '2021' ... --- _id: '36845' author: - first_name: Anne full_name: Kruse, Anne id: '55833' last_name: Kruse - first_name: Manuel full_name: Ott, Manuel id: '44204' last_name: Ott - first_name: Lena full_name: Risse, Lena last_name: Risse - first_name: Rainer full_name: Koch, Rainer last_name: Koch citation: ama: Kruse A, Ott M, Risse L, Koch R. 3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe. Published online 2021. doi:10.48447/Add-2021-016 apa: Kruse, A., Ott, M., Risse, L., & Koch, R. (2021). 3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe. 6. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen, Berlin. Deutscher Verband für Materialforschung und -prüfung e.V. https://doi.org/10.48447/Add-2021-016 bibtex: '@article{Kruse_Ott_Risse_Koch_2021, series={Additiv gefertigte Bauteile und Strukturen}, title={3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe}, DOI={10.48447/Add-2021-016}, publisher={Deutscher Verband für Materialforschung und -prüfung e.V.}, author={Kruse, Anne and Ott, Manuel and Risse, Lena and Koch, Rainer}, year={2021}, collection={Additiv gefertigte Bauteile und Strukturen} }' chicago: Kruse, Anne, Manuel Ott, Lena Risse, and Rainer Koch. “3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe.” Additiv gefertigte Bauteile und Strukturen. Deutscher Verband für Materialforschung und -prüfung e.V., 2021. https://doi.org/10.48447/Add-2021-016. ieee: 'A. Kruse, M. Ott, L. Risse, and R. Koch, “3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe.” Deutscher Verband für Materialforschung und -prüfung e.V., 2021, doi: 10.48447/Add-2021-016.' mla: Kruse, Anne, et al. 3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe. Deutscher Verband für Materialforschung und -prüfung e.V., 2021, doi:10.48447/Add-2021-016. short: A. Kruse, M. Ott, L. Risse, R. Koch, (2021). conference: end_date: 2021-12-04 location: Berlin name: 6. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen start_date: 2021-12-03 date_created: 2023-01-16T06:55:05Z date_updated: 2023-01-16T09:00:30Z department: - _id: '144' - _id: '219' doi: 10.48447/Add-2021-016 language: - iso: ger publisher: Deutscher Verband für Materialforschung und -prüfung e.V. series_title: Additiv gefertigte Bauteile und Strukturen status: public title: 3D-Druck - Eine Technologie als Schlüssel zur Steigerung der Teilhabe type: conference user_id: '55833' year: '2021' ... --- _id: '21549' article_number: '102851' article_type: original author: - first_name: Jannik full_name: Kowatz, Jannik id: '32252' last_name: Kowatz orcid: 0000-0002-4972-4718 - first_name: Dominik full_name: Teutenberg, Dominik id: '537' last_name: Teutenberg - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Kowatz J, Teutenberg D, Meschut G. Experimental failure analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel loading. International Journal of Adhesion and Adhesives. 2021;107. doi:10.1016/j.ijadhadh.2021.102851 apa: Kowatz, J., Teutenberg, D., & Meschut, G. (2021). Experimental failure analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel loading. International Journal of Adhesion and Adhesives, 107, Article 102851. https://doi.org/10.1016/j.ijadhadh.2021.102851 bibtex: '@article{Kowatz_Teutenberg_Meschut_2021, title={Experimental failure analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel loading}, volume={107}, DOI={10.1016/j.ijadhadh.2021.102851}, number={102851}, journal={International Journal of Adhesion and Adhesives}, publisher={Elsevier}, author={Kowatz, Jannik and Teutenberg, Dominik and Meschut, Gerson}, year={2021} }' chicago: Kowatz, Jannik, Dominik Teutenberg, and Gerson Meschut. “Experimental Failure Analysis of Adhesively Bonded Steel/CFRP Joints under Quasi-Static and Cyclic Tensile-Shear and Peel Loading.” International Journal of Adhesion and Adhesives 107 (2021). https://doi.org/10.1016/j.ijadhadh.2021.102851. ieee: 'J. Kowatz, D. Teutenberg, and G. Meschut, “Experimental failure analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel loading,” International Journal of Adhesion and Adhesives, vol. 107, Art. no. 102851, 2021, doi: 10.1016/j.ijadhadh.2021.102851.' mla: Kowatz, Jannik, et al. “Experimental Failure Analysis of Adhesively Bonded Steel/CFRP Joints under Quasi-Static and Cyclic Tensile-Shear and Peel Loading.” International Journal of Adhesion and Adhesives, vol. 107, 102851, Elsevier, 2021, doi:10.1016/j.ijadhadh.2021.102851. short: J. Kowatz, D. Teutenberg, G. Meschut, International Journal of Adhesion and Adhesives 107 (2021). date_created: 2021-03-22T14:15:22Z date_updated: 2023-01-16T10:18:26Z department: - _id: '157' doi: 10.1016/j.ijadhadh.2021.102851 intvolume: ' 107' keyword: - Epoxy adhesive - fatigue strength - shear - peel - Steel-CFRP joints language: - iso: eng publication: International Journal of Adhesion and Adhesives publication_identifier: issn: - 0143-7496 publication_status: published publisher: Elsevier quality_controlled: '1' status: public title: Experimental failure analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel loading type: journal_article user_id: '32252' volume: 107 year: '2021' ... --- _id: '33871' abstract: - lang: eng text: 'The first aim of this article is to present the link between the turnpike property and the singular perturbations theory: the first one being a particular case of the second one. Then, thanks to this link, we set up a new framework based on continuation methods for the resolution of singularly perturbed optimal control problems. We consider first the turnpike case, then, we generalize the approach to general control problems with singular perturbations (that is with fast but also slow variables). We illustrate each step with an example.' author: - first_name: Olivier full_name: Cots, Olivier last_name: Cots - first_name: Joseph full_name: Gergaud, Joseph last_name: Gergaud - first_name: Boris Edgar full_name: Wembe Moafo, Boris Edgar id: '95394' last_name: Wembe Moafo citation: ama: 'Cots O, Gergaud J, Wembe Moafo BE. Homotopic approach for turnpike and singularly perturbed optimal control problems. ESAIM: Proceedings and Surveys. 2021;71:43-53. doi:10.1051/proc/202171105' apa: 'Cots, O., Gergaud, J., & Wembe Moafo, B. E. (2021). Homotopic approach for turnpike and singularly perturbed optimal control problems. ESAIM: Proceedings and Surveys, 71, 43–53. https://doi.org/10.1051/proc/202171105' bibtex: '@article{Cots_Gergaud_Wembe Moafo_2021, title={Homotopic approach for turnpike and singularly perturbed optimal control problems}, volume={71}, DOI={10.1051/proc/202171105}, journal={ESAIM: Proceedings and Surveys}, publisher={EDP Sciences}, author={Cots, Olivier and Gergaud, Joseph and Wembe Moafo, Boris Edgar}, year={2021}, pages={43–53} }' chicago: 'Cots, Olivier, Joseph Gergaud, and Boris Edgar Wembe Moafo. “Homotopic Approach for Turnpike and Singularly Perturbed Optimal Control Problems.” ESAIM: Proceedings and Surveys 71 (2021): 43–53. https://doi.org/10.1051/proc/202171105.' ieee: 'O. Cots, J. Gergaud, and B. E. Wembe Moafo, “Homotopic approach for turnpike and singularly perturbed optimal control problems,” ESAIM: Proceedings and Surveys, vol. 71, pp. 43–53, 2021, doi: 10.1051/proc/202171105.' mla: 'Cots, Olivier, et al. “Homotopic Approach for Turnpike and Singularly Perturbed Optimal Control Problems.” ESAIM: Proceedings and Surveys, vol. 71, EDP Sciences, 2021, pp. 43–53, doi:10.1051/proc/202171105.' short: 'O. Cots, J. Gergaud, B.E. Wembe Moafo, ESAIM: Proceedings and Surveys 71 (2021) 43–53.' date_created: 2022-10-24T13:00:10Z date_updated: 2023-01-16T12:08:28Z doi: 10.1051/proc/202171105 intvolume: ' 71' keyword: - Immunology language: - iso: eng page: 43-53 publication: 'ESAIM: Proceedings and Surveys' publication_identifier: issn: - 2267-3059 publication_status: published publisher: EDP Sciences status: public title: Homotopic approach for turnpike and singularly perturbed optimal control problems type: journal_article user_id: '95394' volume: 71 year: '2021' ... --- _id: '27046' abstract: - lang: eng text: Brand names are a common part of the everyday consumer environment, and can be found on countless visual surfaces such as food packaging. A key characteristic of brand names is their fixed design. Many brand names owe their linguistic form to units that originally did not constitute proper names. They developed into brand names through complex sub-processes of what is commonly referred to as onymisation. These processes include semantic, morphological and phonological/graphemic changes. The aim of this paper is to explore how the specific typographic design of a brand name can be an additional indicator in its process of onymisation. After clarifying the concepts of onymisation and typographic design, an extended multimodal construction model is presented. The basis of the paper is an analysis of a corpus of image data comprising more than 600 photographs of food packaging. In order to get a first impression of how the multimodal constructions of brand names could look, an omission test following a suggestion by Ziem (2017) is applied to the data. author: - first_name: Alexander full_name: Dübbert, Alexander id: '44613' last_name: Dübbert citation: ama: Dübbert A. Brand names as multimodal constructions. On the role of typography as an additional indicator of onymisation. Linguistics Vanguard. 2021;7(1):1-11. doi:10.1515/lingvan-2020-0058 apa: Dübbert, A. (2021). Brand names as multimodal constructions. On the role of typography as an additional indicator of onymisation. Linguistics Vanguard, 7(1), 1–11. https://doi.org/10.1515/lingvan-2020-0058 bibtex: '@article{Dübbert_2021, title={Brand names as multimodal constructions. On the role of typography as an additional indicator of onymisation.}, volume={7}, DOI={10.1515/lingvan-2020-0058}, number={1}, journal={Linguistics Vanguard}, author={Dübbert, Alexander}, year={2021}, pages={1–11} }' chicago: 'Dübbert, Alexander. “Brand Names as Multimodal Constructions. On the Role of Typography as an Additional Indicator of Onymisation.” Linguistics Vanguard 7, no. 1 (2021): 1–11. https://doi.org/10.1515/lingvan-2020-0058.' ieee: 'A. Dübbert, “Brand names as multimodal constructions. On the role of typography as an additional indicator of onymisation.,” Linguistics Vanguard, vol. 7, no. 1, pp. 1–11, 2021, doi: 10.1515/lingvan-2020-0058.' mla: Dübbert, Alexander. “Brand Names as Multimodal Constructions. On the Role of Typography as an Additional Indicator of Onymisation.” Linguistics Vanguard, vol. 7, no. 1, 2021, pp. 1–11, doi:10.1515/lingvan-2020-0058. short: A. Dübbert, Linguistics Vanguard 7 (2021) 1–11. date_created: 2021-11-02T08:40:10Z date_updated: 2023-01-16T12:27:53Z department: - _id: '115' doi: 10.1515/lingvan-2020-0058 intvolume: ' 7' issue: '1' language: - iso: eng main_file_link: - url: https://www.degruyter.com/document/doi/10.1515/lingvan-2020-0058/html page: 1-11 publication: Linguistics Vanguard publication_identifier: issn: - 2199-174X publication_status: published quality_controlled: '1' status: public title: Brand names as multimodal constructions. On the role of typography as an additional indicator of onymisation. type: journal_article user_id: '44613' volume: 7 year: '2021' ... --- _id: '33872' author: - first_name: Boris Edgar full_name: Wembe Moafo, Boris Edgar id: '95394' last_name: Wembe Moafo citation: ama: Wembe Moafo BE. Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications. apa: Wembe Moafo, B. E. (n.d.). Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications. bibtex: '@book{Wembe Moafo, title={Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications}, author={Wembe Moafo, Boris Edgar} }' chicago: Wembe Moafo, Boris Edgar. Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications, n.d. ieee: B. E. Wembe Moafo, Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications. . mla: Wembe Moafo, Boris Edgar. Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications. short: B.E. Wembe Moafo, Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications, n.d. date_created: 2022-10-25T09:08:05Z date_updated: 2023-01-16T12:09:11Z ddc: - '510' extern: '1' file: - access_level: open_access content_type: application/pdf creator: wboris date_created: 2022-10-25T09:07:57Z date_updated: 2022-10-25T09:07:57Z file_id: '33873' file_name: These_Hal.pdf file_size: 6662644 relation: main_file file_date_updated: 2022-10-25T09:07:57Z has_accepted_license: '1' language: - iso: fre oa: '1' page: '180' publication_status: submitted related_material: link: - relation: confirmation url: https://hal.archives-ouvertes.fr/tel-03601394v2 status: public title: Geometric and Numerical Methods in Optimal Control and Zermelo Problems on Revolution Surfaces - Applications type: dissertation user_id: '95394' year: '2021' ... --- _id: '36900' abstract: - lang: ger text: Viele Wege führen in die sozialpädagogische Praxis, doch nach wie vor stellt sich die Frage, wie sozialpädagogisches Handeln gelernt und gelehrt werden kann. Unter Bezugnahme auf kritisch bildungstheoretisch-fundierte Ansätze plädiert der Beitrag für eine Weiterentwicklung einer kritischen Didaktik der beruflichen Fachrichtung Sozialpädagogik. article_type: original author: - first_name: Nina full_name: Göddertz, Nina id: '94171' last_name: Göddertz citation: ama: Göddertz N. Sozialpädagogische Qualifizierungen weiterdenken. Sozial Extra. Published online 2021. doi:10.1007/s12054-021-00414-7 apa: Göddertz, N. (2021). Sozialpädagogische Qualifizierungen weiterdenken. Sozial Extra. https://doi.org/10.1007/s12054-021-00414-7 bibtex: '@article{Göddertz_2021, title={Sozialpädagogische Qualifizierungen weiterdenken}, DOI={10.1007/s12054-021-00414-7}, journal={Sozial Extra}, publisher={Springer}, author={Göddertz, Nina}, year={2021} }' chicago: Göddertz, Nina. “Sozialpädagogische Qualifizierungen weiterdenken.” Sozial Extra, 2021. https://doi.org/10.1007/s12054-021-00414-7. ieee: 'N. Göddertz, “Sozialpädagogische Qualifizierungen weiterdenken,” Sozial Extra, 2021, doi: 10.1007/s12054-021-00414-7.' mla: Göddertz, Nina. “Sozialpädagogische Qualifizierungen weiterdenken.” Sozial Extra, Springer, 2021, doi:10.1007/s12054-021-00414-7. short: N. Göddertz, Sozial Extra (2021). date_created: 2023-01-16T10:03:46Z date_updated: 2023-01-17T08:23:30Z department: - _id: '724' - _id: '36' doi: 10.1007/s12054-021-00414-7 keyword: - Fachdidaktik Sozialpädagogik Kritische Bildungstheorie Emanzipation und Mündigkeit language: - iso: ger publication: Sozial Extra publication_status: published publisher: Springer status: public title: Sozialpädagogische Qualifizierungen weiterdenken type: journal_article user_id: '48187' year: '2021' ... --- _id: '25556' abstract: - lang: eng text: AbstractIn order to reduce fuel consumption and thus pollutant emissions, the automotive industry is increasingly developing lightweight construction concepts that are accompanied by an increasing usage of aluminum materials. Due to poor weldability of aluminum in combination with other materials, mechanical joining methods such as clinching were developed and established in series production. In order to predict the relevant characteristics of clinched joints and to ensure the reliability of the process, it is simulated numerically during product development processes. In this regard, the predictive accuracy of the simulated process highly depends on the implemented friction model. In particular, the frictional behavior between the sheet metals as well as between the sheet metal and clinching tools has a significant impact on the geometrical formation of the clinched joint. No testing methods exist that can sufficiently investigate the frictional behavior in sheet materials, especially under high interface pressures, different relative velocities, and long friction paths, while allowing a decoupled consideration of the test parameters. This paper describes the development of further testing concepts based on a proven tribo-torsion test method for determining friction coefficients between sheet metal materials for the simulation of clinching processes. For this purpose, the correlation of interface pressure and the relative velocity between aluminum and steel sheet material in clinching processes is investigated using numerical simulation. Based on these findings, the developed concepts focus on determining friction coefficients at interface pressures of the above materials, yield stress, as well as the reproduction of the occurring friction conditions between sheet metal materials and tool surfaces in clinching processes using tool substitutes. Furthermore, wear investigations between sheet metal material and tool surface were carried out in the friction tests with subsequent EDX analyses of the frictioned tool surfaces. The developed method also allows an optical deformation measurement of the sheet metal material specimen by means of digital image correlation (DIC). Based on a methodological approach, the test setups and the test systems used are explained, and the functionality of the concepts is proven by experimental tests using different sheet metal materials. author: - first_name: Max full_name: Böhnke, Max id: '45779' last_name: Böhnke - first_name: Moritz Sebastian full_name: Rossel, Moritz Sebastian id: '44503' last_name: Rossel - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Böhnke M, Rossel MS, Bielak CR, Bobbert M, Meschut G. Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes. The International Journal of Advanced Manufacturing Technology. Published online 2021. doi:10.1007/s00170-021-07986-4 apa: Böhnke, M., Rossel, M. S., Bielak, C. R., Bobbert, M., & Meschut, G. (2021). Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes. The International Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-021-07986-4 bibtex: '@article{Böhnke_Rossel_Bielak_Bobbert_Meschut_2021, title={Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes}, DOI={10.1007/s00170-021-07986-4}, journal={The International Journal of Advanced Manufacturing Technology}, author={Böhnke, Max and Rossel, Moritz Sebastian and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}, year={2021} }' chicago: Böhnke, Max, Moritz Sebastian Rossel, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Concept Development of a Method for Identifying Friction Coefficients for the Numerical Simulation of Clinching Processes.” The International Journal of Advanced Manufacturing Technology, 2021. https://doi.org/10.1007/s00170-021-07986-4. ieee: 'M. Böhnke, M. S. Rossel, C. R. Bielak, M. Bobbert, and G. Meschut, “Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes,” The International Journal of Advanced Manufacturing Technology, 2021, doi: 10.1007/s00170-021-07986-4.' mla: Böhnke, Max, et al. “Concept Development of a Method for Identifying Friction Coefficients for the Numerical Simulation of Clinching Processes.” The International Journal of Advanced Manufacturing Technology, 2021, doi:10.1007/s00170-021-07986-4. short: M. Böhnke, M.S. Rossel, C.R. Bielak, M. Bobbert, G. Meschut, The International Journal of Advanced Manufacturing Technology (2021). date_created: 2021-10-06T10:39:08Z date_updated: 2023-01-17T09:01:52Z department: - _id: '157' - _id: '630' doi: 10.1007/s00170-021-07986-4 language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/article/10.1007/s00170-021-07986-4 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: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication: The International Journal of Advanced Manufacturing Technology publication_identifier: issn: - 0268-3768 - 1433-3015 publication_status: published quality_controlled: '1' status: public title: Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes type: journal_article user_id: '45779' year: '2021' ... --- _id: '24739' abstract: - lang: eng text: AbstractIn order to reduce fuel consumption and thus pollutant emissions, the automotive industry is increasingly developing lightweight construction concepts that are accompanied by an increasing usage of aluminum materials. Due to poor weldability of aluminum in combination with other materials, mechanical joining methods such as clinching were developed and established in series production. In order to predict the relevant characteristics of clinched joints and to ensure the reliability of the process, it is simulated numerically during product development processes. In this regard, the predictive accuracy of the simulated process highly depends on the implemented friction model. In particular, the frictional behavior between the sheet metals as well as between the sheet metal and clinching tools has a significant impact on the geometrical formation of the clinched joint. No testing methods exist that can sufficiently investigate the frictional behavior in sheet materials, especially under high interface pressures, different relative velocities, and long friction paths, while allowing a decoupled consideration of the test parameters. This paper describes the development of further testing concepts based on a proven tribo-torsion test method for determining friction coefficients between sheet metal materials for the simulation of clinching processes. For this purpose, the correlation of interface pressure and the relative velocity between aluminum and steel sheet material in clinching processes is investigated using numerical simulation. Based on these findings, the developed concepts focus on determining friction coefficients at interface pressures of the above materials, yield stress, as well as the reproduction of the occurring friction conditions between sheet metal materials and tool surfaces in clinching processes using tool substitutes. Furthermore, wear investigations between sheet metal material and tool surface were carried out in the friction tests with subsequent EDX analyses of the frictioned tool surfaces. The developed method also allows an optical deformation measurement of the sheet metal material specimen by means of digital image correlation (DIC). Based on a methodological approach, the test setups and the test systems used are explained, and the functionality of the concepts is proven by experimental tests using different sheet metal materials. article_type: original author: - first_name: Max full_name: Böhnke, Max last_name: Böhnke - first_name: Moritz full_name: Rossel, Moritz last_name: Rossel - first_name: Christian R. full_name: Bielak, Christian R. last_name: Bielak - first_name: Mathias full_name: Bobbert, Mathias last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson last_name: Meschut citation: ama: Böhnke M, Rossel M, Bielak CR, Bobbert M, Meschut G. Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes. The International Journal of Advanced Manufacturing Technology. Published online 2021. doi:10.1007/s00170-021-07986-4 apa: Böhnke, M., Rossel, M., Bielak, C. R., Bobbert, M., & Meschut, G. (2021). Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes. The International Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-021-07986-4 bibtex: '@article{Böhnke_Rossel_Bielak_Bobbert_Meschut_2021, title={Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes}, DOI={10.1007/s00170-021-07986-4}, journal={The International Journal of Advanced Manufacturing Technology}, author={Böhnke, Max and Rossel, Moritz and Bielak, Christian R. and Bobbert, Mathias and Meschut, Gerson}, year={2021} }' chicago: Böhnke, Max, Moritz Rossel, Christian R. Bielak, Mathias Bobbert, and Gerson Meschut. “Concept Development of a Method for Identifying Friction Coefficients for the Numerical Simulation of Clinching Processes.” The International Journal of Advanced Manufacturing Technology, 2021. https://doi.org/10.1007/s00170-021-07986-4. ieee: 'M. Böhnke, M. Rossel, C. R. Bielak, M. Bobbert, and G. Meschut, “Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes,” The International Journal of Advanced Manufacturing Technology, 2021, doi: 10.1007/s00170-021-07986-4.' mla: Böhnke, Max, et al. “Concept Development of a Method for Identifying Friction Coefficients for the Numerical Simulation of Clinching Processes.” The International Journal of Advanced Manufacturing Technology, 2021, doi:10.1007/s00170-021-07986-4. short: M. Böhnke, M. Rossel, C.R. Bielak, M. Bobbert, G. Meschut, The International Journal of Advanced Manufacturing Technology (2021). date_created: 2021-09-21T07:37:02Z date_updated: 2023-01-17T09:01:35Z doi: 10.1007/s00170-021-07986-4 language: - iso: eng publication: The International Journal of Advanced Manufacturing Technology publication_identifier: issn: - 0268-3768 - 1433-3015 publication_status: published quality_controlled: '1' status: public title: Concept development of a method for identifying friction coefficients for the numerical simulation of clinching processes type: journal_article user_id: '45779' year: '2021' ...