@techreport{21152,
  abstract     = {{In modern lightweight designs, it is important to find a compromise between the strength and the weight of the construction detail. Hence, hybrid structures made of aluminum and steel materials are increasingly being used in automotive applications. Due to limitations in the quality of resistance spot welding, self-piercing riveting can be used as an alternative process to join sheets from different material groups. The aim of this project is to develop a computational method to assess the self-piercing riveted components subjected to the cyclic loads. To achieve this goal, two approaches are followed: Evaluation unsing internal forces: A substitute model is developed to describe the stiffness of self-piercing riveted joints subjected to different loading conditions. The parameters of the substitute model are identified and the internal force components acting on the joint are evaluated. The model provides the basis for the subsequent fatigue life estimation of self-piercing riveted components. For joints subjected to low bending moments, the fatigue life of components can be estimated accurately. Due to lack of specimen geometries producing pure bending and the combination of tension-bending forces, it is not possible to estimate the fatigue life of complex components subjected to high bending moments. Based on the results of [Mesc 16], the methodology is further developed to determine the stresses acting on the joint and to characterize the joining point with the use of simulations. The local concept proposed in the FKM guideline nonlinear provides the basis for the analytical assessment of self-piercing riveted components. In this regard, the cyclic behavior of the material and the local stresses are required as input data. The cyclic behavior of the aluminum EN AW-6181A-T6 and steel HX340LAD sheets were already determined in the previous project. Subsequently, in this project the properties of the rivet made of 38B2 steel are identified. The finite element analysis using elastic-plastic material behavior is used to determine the stresses in the joint subjected to the cyclic loads. To verify the model, the results of simulations and experiments are compared concerning the crack initiation zone as well as the determined number of cycles. To determine the stresses that can be used for the analytical assessment, the damage relevant load components need to be identified. In this regard, it is recommended to use the normal stress perpendicular to the crack propagation direction, the stress of crack opening mode I. Using the damage parameter PRAM and considering the support factors according to the FKM guideline nonlinear, a reliable estimation of the crack initiation zone within the joint is possible. Regarding the joint made of aluminum sheet EN AW-6181A, the methodology is able to provide promising results. However, regarding the joints made of aluminum EN AW-6181A and steel HX340LAD sheets, there is still potential to improve the results. The reasons for this are described in chapter 7.2.5 and 7.2.6. An analytical fatigue assessment is relatively easy to achieve with procedure 1. However, contrary to the objective formulated above, expensive fatigue tests are necessary to determine the failure conditions (strength values). This disadvantage can be circumvented by determining the strength information of individual joining points under different load types using procedure 2. The latter, in return, is not suitable for the assessment of complex components with several joining points. Due to the increasing calculation times of the simulation, the application in this case is not economically reasonable. By the described combination of method 1 and 2, the disadvantages of the two individual concepts can be compensated. An analytical fatigue assessment of self-piercing riveted components can be carried out based on the cyclic material behavior. The objective of the project was achieved.}},
  author       = {{Otroshi, Mortaza and Meschut, Gerson and Masendorf, Lukas and Esderts, Alfons}},
  isbn         = {{978-3-86776-602-9}},
  pages        = {{282}},
  publisher    = {{Europäische Forschungsgesellschaft für Blechverarbeitung e.V. (EFB)}},
  title        = {{{Simulationsbasierte Betriebsfestigkeitsanalyse stanzgenieteter Bauteile}}},
  year         = {{2020}},
}

@phdthesis{21209,
  abstract     = {{Die additive Fertigung mittels Laser Powderbed Fusion Verfahren (L-PBF) von Metallen wird zunehmend genutzt, um Funktionsbauteile endkonturnah zu fertigen. Die in der vor-liegenden Arbeit untersuchte Parameter- und Prozessoptimierung liefert einen Beitrag zur wirtschaftlichen Nutzung des L-PBF und zeigt, dass höhere Aufbauraten bei der ganzheit-lichen Betrachtung des Prozesses realisierbar sind.
Die Parameter- und Prozessoptimierung erfordert eine Untersuchung des Einflusses der Fertigungs- und Nachbearbeitungsparameter auf das erzeugte Volumen sowie auf die Mikrostruktur und die resultierenden Materialeigenschaften. Das Ziel der vorliegenden Arbeit ist die Entwicklung einer optimierten Prozessführung mit abschließender Bewer-tung der Wirtschaftlichkeit. Mit dem entwickelten Gesamtprozess wird eine um den Faktor 1,6 höhere Aufbaurate erzielt. Des Weiteren wird die Methodik zur Erarbeitung des opti-mierten Prozessfensters beschrieben, sodass die Herangehensweise auf weitere Werk-stoffe angewendet werden kann. Die mechanischen Eigenschaften werden für den stati-schen und dynamischen Lastfall untersucht und mit der Mikrostruktur korreliert. Abschlie-ßend wird die Prozessoptimierung zur Fertigung eines Demonstrators eingesetzt und wirtschaftlich validiert. Die Ergebnisse zeigen, dass durch das hier angewendete Vorge-hen eine Prozesszeitreduktion von 22,5% und eine Kostenreduktion von 11% realisiert werden kann.}},
  author       = {{Ahlers, Dominik}},
  isbn         = {{978-3844074246}},
  keywords     = {{Additive Manufacturing, SLM}},
  pages        = {{137}},
  publisher    = {{Shaker}},
  title        = {{{Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V }}},
  volume       = {{19}},
  year         = {{2020}},
}

@article{21444,
  author       = {{Heggemann, Thomas and Homberg, Werner and Sapli, Hüseyin}},
  issn         = {{2351-9789}},
  journal      = {{Procedia Manufacturing}},
  pages        = {{36--42}},
  title        = {{{Combined Curing and Forming of Fiber Metal Laminates}}},
  doi          = {{10.1016/j.promfg.2020.04.118}},
  year         = {{2020}},
}

@inproceedings{21522,
  author       = {{Sapli, Hüseyin and Heggemann, Thomas and Homberg, Werner}},
  location     = {{Karlsruhe}},
  title        = {{{Combined Curing and Deep Drawing of Fiber Metal Laminates to Spherical Hybrid Components}}},
  year         = {{2020}},
}

@article{17335,
  author       = {{Hampel, Uwe and Schubert, Markus and Döß, Alexander and Sohr, Johanna and Vishwakarma, Vineet and Repke, Jens‐Uwe and Gerke, Sören J. and Leuner, Hannes and Rädle, Matthias and Kapoustina, Viktoria and Schmitt, Lucas and Grünewald, Marcus and Brinkmann, Jost H. and Plate, Dominik and Kenig, Eugeny and Lutters, Nicole and Bolenz, Lukas and Buckmann, Felix and Toye, Dominique and Arlt, Wolfgang and Linder, Thomas and Hoffmann, Rainer and Klein, Harald and Rehfeldt, Sebastian and Winkler, Thomas and Bart, Hans‐Jörg and Wirz, Dominic and Schulz, Jonas and Scholl, Stephan and Augustin, Wolfgang and Jasch, Katharina and Schlüter, Florian and Schwerdtfeger, Natalie and Jahnke, Stefan and Jupke, Andreas and Kabatnik, Christoph and Braeuer, Andreas Siegfried and D'Auria, Mirko and Runowski, Thomas and Casal, Maria Francisco and Becker, Karsten and David, Anna‐Lena and Górak, Andrzej and Skiborowski, Mirko and Groß, Kai and Qammar, Hina}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  pages        = {{926--948}},
  title        = {{{Recent Advances in Experimental Techniques for Flow and Mass Transfer Analyses in Thermal Separation Systems}}},
  doi          = {{10.1002/cite.202000076}},
  volume       = {{92}},
  year         = {{2020}},
}

@inproceedings{17349,
  author       = {{Grabo, Matti and Staggenborg, Christoph and Kenig, Eugeny}},
  location     = {{Frankfurt am Main}},
  title        = {{{Modellierung und Optimierung makroverkapselter Latentwärmespeicherelemente für ein luftgeführtes Wärmespeichersystem}}},
  year         = {{2020}},
}

@article{17589,
  author       = {{Sonnenrein, G. and Baumhögger, Elmar and Elsner, A. and Morbach, A. and Neukötter, M. and Paul, A. and Vrabec, J.}},
  issn         = {{0140-7007}},
  journal      = {{International Journal of Refrigeration}},
  title        = {{{Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015}}},
  doi          = {{10.1016/j.ijrefrig.2020.07.025}},
  year         = {{2020}},
}

@article{17812,
  author       = {{Hielscher, Christian and Grenz, Julian and Camberg, Alan Adam and Wingenbach, Nils}},
  issn         = {{0001-2785}},
  journal      = {{ATZ - Automobiltechnische Zeitschrift}},
  pages        = {{60--65}},
  title        = {{{Ansatz zur effizienteren Auslegung von Hybridbauteilen}}},
  doi          = {{10.1007/s35148-020-0284-8}},
  year         = {{2020}},
}

@article{17813,
  author       = {{Hielscher, Christian and Grenz, Julian and Camberg, Alan Adam and Wingenbach, Nils}},
  issn         = {{2192-9076}},
  journal      = {{ATZ worldwide}},
  pages        = {{58--61}},
  title        = {{{Approach to More Efficient Design of Hybrid Components}}},
  doi          = {{10.1007/s38311-020-0267-0}},
  year         = {{2020}},
}

@inproceedings{19178,
  author       = {{Kowatz, Jannik and Teutenberg, Dominik and Meschut, Gerson}},
  booktitle    = {{20. Kolloquium Gemeinsame Forschung in der Klebtechnik}},
  location     = {{Würzburg}},
  title        = {{{Auslegungsmethode für zyklisch beanspruchte Stahl/CFK-Klebverbindungen unter besonderer Berücksichtigung des Rissfortschritts}}},
  year         = {{2020}},
}

@inproceedings{23406,
  author       = {{Bertling, René and Hack, Mathias and Ausner, Ilja and Kenig, Eugeny}},
  title        = {{{CFD-basierte Untersuchung von Zweiphasenströmungen in strukturierten Packungen}}},
  year         = {{2020}},
}

@inproceedings{23407,
  author       = {{Bertling, René and Hack, Mathias and Ausner, Ilja and Kenig, Eugeny}},
  title        = {{{CFD-Simulationen von Film- und Rinnsalströmungen auf mikrostrukturierten Oberflächen}}},
  year         = {{2020}},
}

@article{23422,
  author       = {{Bothe, Mike and Fedorov, A. and Frei, H. and Lutters, N. and Kenig, E. Y.}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  pages        = {{1192--1192}},
  title        = {{{Dynamische Simulation von industriellen Kreislaufprozessen zur Vermeidung von Notfallsituationen bei der chemischen Absorption}}},
  doi          = {{10.1002/cite.202055174}},
  year         = {{2020}},
}

@inproceedings{23438,
  author       = {{Gräßler, Iris and Scholle,  Philipp and Thiele, Henrik}},
  booktitle    = {{ ISPIM Conference Proceedings}},
  isbn         = {{ 978-952-335-466-1}},
  pages        = {{1--13}},
  publisher    = {{International Society for Professional Innovation Management (ISPIM)}},
  title        = {{{Semi-automatized consistency assessment in Scenario-Technique: Generic consistency patterns and user types}}},
  year         = {{2020}},
}

@inproceedings{23505,
  author       = {{Gräßler, Iris and Preuß, Daniel and Oleff, Christian}},
  booktitle    = {{Proceedings of the 31st Symposium Design for X (DFX2020); 16. - 18. Sep. 2020}},
  editor       = {{Krause, Dieter and Paetzold, Kristin and Wartzack, Sandro}},
  pages        = {{199--208}},
  title        = {{{Automatisierte Identifikation und Charakterisierung von Anforderungsabhängigkeiten – Literaturstudie zum Vergleich von Lösungsansätzen}}},
  doi          = {{10.35199/dfx2020.21}},
  year         = {{2020}},
}

@article{23515,
  author       = {{Gräßler, Iris and Bettenhausen, Kurt D. and Bilgic, Attila M. and Dirzus, Dagmar}},
  journal      = {{at-Automatisierungstechnik 68(6)}},
  number       = {{68 (6)}},
  pages        = {{500--507}},
  title        = {{{Which future do we want? It's up to us! - 4 future scenarios for automation 2030}}},
  year         = {{2020}},
}

@article{23517,
  author       = {{Gräßler, Iris and Hentze, Julian}},
  issn         = {{ISSN: 2196-677X}},
  journal      = {{at-Automatisierungstechnik 68(5)}},
  number       = {{68(5)}},
  pages        = {{312--324}},
  title        = {{{The new V-Model of 2206 and its validation}}},
  year         = {{2020}},
}

@inbook{23522,
  author       = {{Gräßler, Iris and Scholle, Philipp and Thiele, Henrik}},
  booktitle    = {{Integrated Design Engineering. Interdisciplinary and Holistic Product Development}},
  editor       = {{Sandor, Vajna}},
  isbn         = {{978-3-030-19356-0}},
  pages        = {{507--529}},
  publisher    = {{Springer International Publishing Switzerland}},
  title        = {{{Scenario Technique}}},
  doi          = {{10.1007/978-3-030-19357-7}},
  year         = {{2020}},
}

@inproceedings{23528,
  author       = {{Mentler, Tilo and Reuter, Christian and Nestler, Simon and Kaufhold, Marc-Andre and Herczeg, Michael and Pottebaum, Jens}},
  booktitle    = {{Mensch und Computer 2020 - Workshopband}},
  editor       = {{Hansen, C. and Nürnberger, A. and Preim, B.}},
  publisher    = {{Gesellschaft für Informatik e.V}},
  title        = {{{ 7. Workshop Mensch-Maschine-Interaktion in sicherheitskritischen Systemen}}},
  doi          = {{10.18420/muc2020-ws117}},
  year         = {{2020}},
}

@article{23529,
  author       = {{Gräßler, Iris and Oleff, Christian and Scholle, Philipp}},
  journal      = {{Applied Sciences 23/2020 (23)}},
  pages        = {{8697}},
  title        = {{{Method for Systematic Assessment of Requirement Change Risk in Industrial Practice}}},
  year         = {{2020}},
}