Universität Stuttgart

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Institute: search.filters.UBSInstitut.Fakultäts- und hochschulübergreifende Einrichtungen (allgemein)

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    Data processing, analysis, and evaluation methods for co-design of coreless filament-wound building systems
    (2023) Gil Pérez, Marta; Mindermann, Pascal; Zechmeister, Christoph; Forster, David; Guo, Yanan; Hügle, Sebastian; Kannenberg, Fabian; Balangé, Laura; Schwieger, Volker; Middendorf, Peter; Bischoff, Manfred; Menges, Achim; Gresser, Götz T.; Knippers, Jan
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    Digitalisierungsbezogene Kompetenzen von Lehramtsstudierenden im Kontext pädagogisch-didaktischen Makings : theoretische Grundlagen
    (Stuttgart ; Ludwigsburg : Professional School of Education Stuttgart-Ludwigsburg, 2022) Brändle, Marcus; Schmidt, Jennifer; Balcik, Tülay; Gollnau, Nikodemus; Wilcke, Claus; Gentemann, Anna-Lena; Bescherer, Christine; Sälzer, Christine; Schaal, Steffen; Zinn, Bernd
    Das Projekt MakEd_digital zielt auf die Entwicklung digitalisierungsbezogener Kompetenzen von angehenden Lehrpersonen zur Nutzung, Entwicklung und Reflexion digitaler Medien und Werkzeuge in Lehr-/Lernkontexten ab. Dabei bilden unterschiedliche theoretische Modelle Basis und Bezugsperspektiven für die wissenschaftliche Konkretisierung und Validierung des hier angewandten Kompetenzbegriffes (nach Weinert, 2001). Diese Modellvielfalt ergibt sich zwingend aus den mehrfachen Bezugsdimensionen des Projekts, das wissenschaftliche Reflexion in der Hochschullehre, den Betrieb verschiedener pädagogisch-didaktischer Makerspaces sowie den Aufbau einer Maker-orientierten Community über Fachgrenzen hinweg umfasst. Der Artikel beschreibt diese Theorien und ihr Zusammenspiel im Sinne des Gedankens von (medien-)pädagogischem Making.
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    Fibrx rocking chair : design and application of tailored timber as an embedded frame for natural fibre-reinforced polymer (NFRP) coreless winding
    (2023) Pittiglio, Alexandra; Simpson, Ailey; Costalonga Martins, Vanessa; Dahy, Hanaa
    The building industry needs to innovate towards a more sustainable future and can do so through a combination of more renewable material choices and less wasteful fabrication processes. To address these issues, a hybrid material and fabrication system was developed using laminated timber veneer and natural fibre-reinforced composites (NFRPs), two materials that are leveraged for their potential of strategic material placement in additive processes towards programmed material behaviour and performance. The main contribution is in the hybrid fabrication approach, using thin, bent laminated veneer as an embedded frame for coreless filament winding of NFRP, which removes the need for temporary, wasteful formwork that is typically required to achieve structurally performative bent timber or FRP elements. Integrative methods are developed for the design, simulation, and fabrication of a rocking chair prototype that illustrates the architectural potential of the developed fabrication approach.
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    Mechanical, thermal and electrical properties of epoxy nanocomposites with amine-functionalized reduced graphene oxide via plasma treatment
    (2022) Ackermann, Annika C.; Fischer, Michael; Wick, Alexander; Carosella, Stefan; Fox, Bronwyn L.; Middendorf, Peter
    A suitable functionalization of graphene and its derivatives can further enhance the material properties of nanocomposites. In contrast to chemical functionalization methods that have been extensively researched, functionalization by plasma treatment is relatively unexplored. In this work, we compare the mechanical, thermal and electrical characteristics of an epoxy matrix incorporating loadings from 0.00 to 1.50 wt% of non-functionalized (rGO) and amine-functionalized reduced graphene oxide (frGO) for which the functionalization is realized by plasma processing. No significant difference between the rGO- and frGO-including nanocomposites was observed with respect to the stiffness, strength, specific heat capacity, coefficient of thermal expansion and electrical conductivity. Yet, the composites with 1.50 wt% frGO (rGO) exhibited a thermal conductivity that was 27% (20%) higher than the neat polymer due to the enhanced interface, which enabled a better transfer of heat. In addition, a considerable increase in the specific heat capacity and thermal conductivity was established with rising temperatures. This information will facilitate the choice of materials depending on the loading and functionalization of graphene materials for composite applications with an epoxy matrix.
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    Plants as inspiration for material-based sensing and actuation in soft robots and machines
    (2023) Speck, Thomas; Cheng, Tiffany; Klimm, Frederike; Menges, Achim; Poppinga, Simon; Speck, Olga; Tahouni, Yasaman; Tauber, Falk; Thielen, Marc
    Because plants are considered immobile, they remain underrepresented as concept generators for soft robots and soft machines. However, plants show a great variety of movements exclusively based on elastic deformation of regions within their moving organs. The absence of gliding parts, as found in the joints of vertebrates and insects, prevents stress concentration and attrition. Since plants have no central control unit (brain), stimulus-sensing, decision-making and reaction usually take place noncentrally in the hierarchically structured materials systems of the moving organs, in what can be regarded as an example of physical intelligence. These characteristics make plants interesting models for a new group of soft robots and soft machines that differ fundamentally from those inspired by animals. The potential of such plant-inspired soft robots and machines is shown in six examples and is illustrated by examples applied in architecture and medicine.