@inproceedings{32819,
  author       = {{Pfeifer, Florian and Tröster, Thomas and Marten, Thorsten and Dietrich, André and Nacke, Bernard and Grundmeier, Guido}},
  booktitle    = {{Proceedings of the 6th International Conference on Steels in Cars and Trucks}},
  location     = {{Mailand}},
  title        = {{{Investigation on hot sheet metal forming by means of a longitudinal flux inductor}}},
  year         = {{2022}},
}

@phdthesis{32816,
  abstract     = {{Die überwiegende Nutzung von nachwachsenden Rohstoffen ist ein wichtiger Aspektzum dauerhaft nachhaltigen Wirtschaften. Dem Einsatz von Holzwerkstoffen in der Automobilindustriestehen u. a. immer noch zahlreiche Kenntnislücken zum Material- undzum Strukturverhalten unter z. B. dynamischer Belastung entgegen. Um den Kenntnisstandzu erweitern und das Potenzial der Holzwerkstoffe als nachhaltige Alternative zuden etablierten Werkstoffen zu veranschaulichen, wurden hier zwei Demonstratoren vonBauteilen der Fahrzeugkarosserie aus dem Furnierschichtholz (FSH) der Buche entwickeltund getestet. Die ausgewählte Stoßabsorptionsvorrichtung und die Sitzrückwandwurden unter der Berücksichtigung der auftretenden Lasten und der Materialparameterkonzeptioniert. Im Vordergrund standen bei der Stoßabsorptionsvorrichtung eine möglichsthohe Aufnahme von Crashenergie und bei der Sitzrückwand die fertigungstechnischenAspekte der Furnierumformung zu einer komplexen Geometrie. Die entwickeltenDemonstratoren erfüllten die im Rahmen dieser Arbeit an sie gestellten Anforderungenzufriedenstellend und wiesen zum Teil ein erhebliches Leichtbaupotenzial gegenüberden metallischen Referenzstrukturen auf. Mit dieser Arbeit wurden grundlegende Erkenntnisseüber das Verformungs- und Versagensverhalten von Strukturen aus FSH unterquasistatischer und dynamischer Belastung gewonnen, um so die möglichen Einsatzgebietedieses Holzwerkstoffes zu erweitern.}},
  author       = {{Schweizer, Swetlana}},
  publisher    = {{LibreCat University}},
  title        = {{{Ein Beitrag zur Etablierung von Holzwerkstoffen im strukturellen Automobilbau anhand der Vorentwicklung zweier Karosseriebauteile aus Rotbuche}}},
  doi          = {{10.17619/UNIPB/1-1314}},
  year         = {{2022}},
}

@phdthesis{31848,
  author       = {{Striewe, Jan Andre}},
  title        = {{{Haftung und Korrosionsbeständigkeit direktgefügter Hybridsysteme aus kohlenstofffaserverstärktem Epoxidharz und verzinktem Stahl für den Automobilleichtbau}}},
  year         = {{2022}},
}

@article{34097,
  author       = {{Voswinkel, Dietrich and Striewe, Jan Andre and Grydin, Olexandr and Meinderink, Dennis and Grundmeier, Guido and Schaper, Mirko and Tröster, Thomas}},
  issn         = {{0924-3046}},
  journal      = {{Advanced Composite Materials}},
  keywords     = {{Mechanical Engineering, Mechanics of Materials, Ceramics and Composites}},
  pages        = {{1--16}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Co-bonding of carbon fibre-reinforced epoxy and galvanised steel with laser structured interface for automotive applications}}},
  doi          = {{10.1080/09243046.2022.2143746}},
  year         = {{2022}},
}

@article{31496,
  abstract     = {{<jats:p>Carbon fiber reinforced plastics (CFRPs) gained high interest in industrial applications because of their excellent strength and low specific weight. The stacking sequence of the unidirectional plies forming a CFRP laminate, and their thicknesses, primarily determine the mechanical performance. However, during manufacturing, defects, e.g., pores and residual stresses, are induced, both affecting the mechanical properties. The objective of the present work is to accurately measure residual stresses in CFRPs as well as to investigate the effects of stacking sequence, overall laminate thickness, and the presence of pores on the residual stress state. Residual stresses were measured through the incremental hole-drilling method (HDM). Adequate procedures have been applied to evaluate the residual stresses for orthotropic materials, including calculating the calibration coefficients through finite element analysis (FEA) based on stacking sequence, laminate thickness and mechanical properties. Using optical microscopy (OM) and computed tomography (CT), profound insights into the cross-sectional and three-dimensional microstructure, e.g., location and shape of process-induced pores, were obtained. This microstructural information allowed for a comprehensive understanding of the experimentally determined strain and stress results, particularly at the transition zone between the individual plies. The effect of pores on residual stresses was investigated by considering pores to calculate the calibration coefficients at a depth of 0.06 mm to 0.12 mm in the model and utilizing these results for residual stress evaluation. A maximum difference of 46% in stress between defect-free and porous material sample conditions was observed at a hole depth of 0.65 mm. The significance of employing correctly calculated coefficients for the residual stress evaluation is highlighted by mechanical validation tests.</jats:p>}},
  author       = {{Wu, Tao and Kruse, Roland and Tinkloh, Steffen Rainer and Tröster, Thomas and Zinn, Wolfgang and Lauhoff, Christian and Niendorf, Thomas}},
  issn         = {{2504-477X}},
  journal      = {{Journal of Composites Science}},
  keywords     = {{Engineering (miscellaneous), Ceramics and Composites}},
  number       = {{5}},
  publisher    = {{MDPI AG}},
  title        = {{{Experimental Analysis of Residual Stresses in CFRPs through Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects}}},
  doi          = {{10.3390/jcs6050138}},
  volume       = {{6}},
  year         = {{2022}},
}

@article{32814,
  author       = {{Wu, T. and Degener, S. and Tinkloh, Steffen Rainer and Liehr, A. and Zinn, W. and Nobre, J.P. and Tröster, Thomas and Niendorf, T.}},
  issn         = {{0263-8223}},
  journal      = {{Composite Structures}},
  keywords     = {{Civil and Structural Engineering, Ceramics and Composites}},
  publisher    = {{Elsevier BV}},
  title        = {{{Characterization of residual stresses in fiber metal laminate interfaces - A combined approach applying hole-drilling method and energy-dispersive X-ray diffraction}}},
  doi          = {{10.1016/j.compstruct.2022.116071}},
  year         = {{2022}},
}

@article{29951,
  abstract     = {{The components of a body in white consist of many individual thin-walled sheet metal parts, which usually are manufactured in deep-drawing processes. In general, the conditions in a deep-drawing process change due to changing tribology conditions, varying degrees of spring back, or scattering material properties in the sheet blanks, which affects the resulting pre-strain. Mechanical joining processes, especially clinching, are influenced by these process-related pre-strains. The final geometric shape of a clinched joint is affected to a significant level by the prior material deformation when joining with constant process parameters. That leads to a change in the stiffness and force transmission in the clinched joint due to the different geometric dimensions, such as interlock, neck thickness and bottom thickness, which directly affect the load bearing capacity. Here, the influence of the pre-straining in the deep drawing process on the force distribution in clinch points in an automotive assembly is investigated by finite-element models numerically. In further studies, the results are implemented in an optimization tool for designing clinched components. The methodology starts with a pre-straining of metal sheets. This step is followed by 2D rotationally symmetric forming simulations of the joining process. The resulting mesh of each forming simulation is rotated and 3D models are obtained. The clinched joint solid model with pre-strains is used further to determine the joint stiffnesses. With the simulation of the same test set-up with an equivalent point-connector model, the equivalent stiffness for each pre-strain combination is determined. Simulations are performed on a clinched component to assess the influence of pre-strain and sheet thinning on the clinched joint loadings by using the equivalent stiffnesses. The investigations clearly show that for the selected component, the loadings at the clinch points are dependent on the sheet thinning and the stiffnesses due to pre-strain. The magnitude of the influence varies depending on the quantity considered. For example, the shear force is more sensitive to the joint stiffness than to the sheet thinning.</jats:p>}},
  author       = {{Martin, Sven and Bielak, Christian Roman and Bobbert, Mathias and Tröster, Thomas and Meschut, Gerson}},
  issn         = {{0944-6524}},
  journal      = {{Production Engineering}},
  keywords     = {{Industrial and Manufacturing Engineering, Mechanical Engineering}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area}}},
  doi          = {{10.1007/s11740-021-01103-w}},
  year         = {{2022}},
}

@article{32813,
  author       = {{Martin, Sven and Kurtusic, Kristijan and Tröster, Thomas}},
  journal      = {{Key Engineering Materials}},
  location     = {{Braga}},
  title        = {{{Influence of the Surrounding Sheet Geometry on a Clinched Joint}}},
  doi          = {{  https://doi.org/10.4028/p-09md1c}},
  volume       = {{927}},
  year         = {{2022}},
}

@article{32869,
  abstract     = {{<jats:p>The further development of in-mold-assembly (IMA) technologies for structural hybrid components is of great importance for increasing the economic efficiency and thus the application potential. This paper presents an innovative IMA process concept for the manufacturing of bending loaded hybrid components consisting of two outer metal belts and an inner core structure made of glass mat reinforced thermoplastic (GMT). In this process, the core structure, which is provided with stiffening ribs and functional elements, is formed and joined to two metal belts in one single step. For experimental validation of the concept, the development of a prototypic molding tool and the manufacturing of hybrid beams including process parameters are described. Three-point bending tests and optical measurement technologies are used to characterize the failure behavior and mechanical properties of the produced hybrid beams. It was found that the innovative IMA process enables the manufacturing of hybrid components with high energy absorption and low weight in one step. The mass-specific energy absorption is increased by 693 % compared to pure GMT beams.</jats:p>}},
  author       = {{Stallmeister, Tim and Tröster, Thomas}},
  issn         = {{1662-9795}},
  journal      = {{Key Engineering Materials}},
  keywords     = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}},
  pages        = {{1457--1467}},
  publisher    = {{Trans Tech Publications, Ltd.}},
  title        = {{{In-Mold-Assembly of Hybrid Bending Structures by Compression Molding}}},
  doi          = {{10.4028/p-5fxp53}},
  volume       = {{926}},
  year         = {{2022}},
}

@inproceedings{32871,
  author       = {{Triebus, Marcel and Ostermann, Moritz and Tröster, Thomas and Horwath, Ilona}},
  booktitle    = {{Materials in Car Body Engineering - Bad Nauheim}},
  location     = {{Bad Nauheim}},
  title        = {{{Advanced Automotive Components by Fiber-Metal-Laminates}}},
  year         = {{2022}},
}

@inproceedings{34085,
  author       = {{Ostermann, Moritz and Grenz, Julian and Triebus, Marcel and Cerdas, Felipe and Marten, Thorsten and Tröster, Thomas and Herrmann, Christoph}},
  booktitle    = {{Proceedings of the 17th Conference on Sustainable Development of Energy, Water and Environment Systems}},
  location     = {{Paphos, Cyprus}},
  title        = {{{Integrating Future Energy, Material and Production Scenarios in Life Cycle Engineering of Automotive Lightweight Structures}}},
  year         = {{2022}},
}

@article{30510,
  abstract     = {{The corrosion behavior of a hybrid material consisting of intrinsically bonded carbon fiber-reinforced epoxy resin with laser-structured EN AW 6082 metal was investigated. Particular attention was paid to the effects of the laser-structuring, surface topography and the contacting. Pristine and hybridized specimens were corroded in aqueous NaCl electrolyte (0.1 mol/l) using a potentiodynamic polarization technique and subsequently analyzed using computed tomography, scanning electron-, light- and laser scanning microscopy. The results show that the corrosive reaction arises mainly from the aluminum component. Surface pretreatment of the aluminum resulted in increasing corrosion rates, but showed no influence on the hybrids corrosion properties. Optical micrographs suggest that the epoxy resin acts as a sealant preventing galvanic corrosion between the aluminum and carbon fibers by hindering the diffusion of the electrolyte into the joints. While corrosion effects were observed locally at the aluminum surface, they were, contrary to expectations, not enhanced on the hybrid interfaces.}},
  author       = {{Delp, Alexander and Freund, Jonathan and Wu, Shuang and Scholz, Ronja and Löbbecke, Miriam and Haubrich, Jan and Tröster, Thomas and Walther, Frank}},
  issn         = {{0263-8223}},
  journal      = {{Composite Structures}},
  keywords     = {{Civil and Structural Engineering, Ceramics and Composites}},
  publisher    = {{Elsevier BV}},
  title        = {{{Influence of laser-generated surface micro-structuring on the intrinsically bonded hybrid system CFRP-EN AW 6082-T6 on its corrosion properties}}},
  doi          = {{10.1016/j.compstruct.2022.115238}},
  volume       = {{285}},
  year         = {{2022}},
}

@inproceedings{49424,
  abstract     = {{Der Beitrag liefert einen Überblick über die Möglichkeiten der gekoppelten multiphysikalischen numerischen Simulation mit dem Finite Elemente-Löser LS-DYNA. Am Beispiel der resistiven Schnellerwärmung einer Titanlegierung im Forschungsprojekt TISTRAQ erfolgt die Beschreibung der Vorgehensweise, der Eingangs- und Ergebnisgrößen sowie der weiteren Anwendung der Simulation im Forschungsprojekt. Im Fokus steht dabei die Ermittlung der lokalen Temperaturverläufe, deren Kenntnis eine Grundvoraussetzung für die Berechnung prozessabhängiger Materialkennwerte darstellt.}},
  author       = {{Merten, Mathias and Klöppel, Thomas and Haufe, André and Kaiser, Maximilian Alexander and Wesendahl, Jan-Niklas and Konrad, Stefan}},
  booktitle    = {{Workshop Warmblechumformung}},
  editor       = {{Merklein, Marion}},
  location     = {{Fürth}},
  publisher    = {{Lehrstuhl für Fertigungstechnologie}},
  title        = {{{Gekoppelte Simulation des resistiven Schnellerwärmens für Fertigungsprozesse mit integrierter Wärmebehandlung am Beispiel der Titanlegierung Ti-6Al-4V}}},
  volume       = {{17}},
  year         = {{2022}},
}

@inproceedings{49433,
  author       = {{Kaiser, Maximilian Alexander and Rockicki, Pawel and Höschen, Fabian and Wesendahl, Jan-Niklas and Konrad, Stefan and Meyer, Thomas and Marten, Thorsten and Tröster, Thomas}},
  keywords     = {{Ti-6Al-4V, heat transfer coefficient}},
  location     = {{Orlando}},
  title        = {{{ Heat transfer coefficient investigation for hot die quenching process of Ti-6Al-4V alloy}}},
  year         = {{2022}},
}

@inproceedings{49435,
  author       = {{Kaiser, Maximilian Alexander and Wesendahl, Jan-Niklas and Meyer, Thomas}},
  location     = {{Berlin}},
  title        = {{{Isothermal hot forming of Titanium sheet metal - From parameter identification to custom parts}}},
  year         = {{2022}},
}

@inproceedings{50744,
  abstract     = {{The manufacturing industry contributes immensely to the global emissions and therefore is
a key factor that has to be addressed when a more sustainable production is desired. Laser Powder
Bed Fusion (LPBF) is an AM technique that offers the possibility to manufacture metal parts in a
more material efficient way due to the layer-by-layer build-up. Nevertheless, the processing chain
for parts from LPBF contains additional steps like powder atomization, which also influence the
ecological footprint of the production chain. Within this work, a life-cycle model for the production
step of parts from AlSi10Mg powder material is developed. The model is supplied with data from
the powder atomization up to the production step, either by literature, database or experimental
measurements during production. The footprint in terms of CO2 emissions is then analyzed and
emission-intense steps are identified. Two manufacturing scenarios are considered to evaluate the
sensitivity on the emissions.}},
  author       = {{Bödger, Christian and Weiss, Christian and Schiefer, Ekkehard and Heussen, Daniel and Haefner, Constantin}},
  booktitle    = {{Proceedings of the 33rd Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference}},
  location     = {{Austin}},
  title        = {{{Evaluation of the Ecological Footprint for Parts from AlSi10Mg manufactured by Laser Powder Bed Fusion}}},
  year         = {{2022}},
}

@inproceedings{32875,
  author       = {{Ostermann, Moritz and Behm, Jonathan and Marten, Thorsten and Tröster, Thomas and Weyer, Johannes and Cepera, Kay and Adelt, Fabian}},
  booktitle    = {{14. Wissenschaftsforum Mobilität}},
  location     = {{Duisburg}},
  title        = {{{Individualisierung des ÖPNV - Integration technischer und sozialer Dimensionen nachhaltiger Mobilität}}},
  year         = {{2022}},
}

@inproceedings{28440,
  author       = {{Triebus, Marcel and Reitz, Alexander and Grydin, Olexandr and Grenz, Julian and Schneidt, Andreas and Erhardt, Rüdiger and Tröster, Thomas and Schaper, Mirko}},
  booktitle    = {{13th European LS-DYNA Conference 2021}},
  location     = {{Ulm}},
  title        = {{{Forming Simulation of Tailored Press Hardened Parts}}},
  year         = {{2021}},
}

@book{28461,
  author       = {{Tröster, Thomas and Pfeifer, Florian and Nacke, Bernard and Dietrich, André}},
  isbn         = {{978-3-96780-002-9 }},
  publisher    = {{Forschungsvereinigung Stahlanwendung e.V.}},
  title        = {{{Großserientaugliche induktive Platinenerwärmung für den Warmformprozess}}},
  volume       = {{P1038}},
  year         = {{2021}},
}

@inproceedings{21442,
  author       = {{Tinkloh, Steffen Rainer and Wu, Tao and Tröster, Thomas and Niendorf, Thomas}},
  keywords     = {{Micromechanics, Fast Fourier Transform (FFT), Reduced Order Modelling, Homogenization}},
  title        = {{{Development of a submodel technique for FFT-based solvers in micromechanical analysis}}},
  year         = {{2021}},
}