@inproceedings{48660,
  author       = {{Schöppner, Volker and Austermeier, Laura and Alsoud, A.}},
  location     = {{St. Gallen (Schweiz)}},
  title        = {{{Development Of An Asymmetric Torque Model For The Two Screws Of A Twin Screw Extruder}}},
  year         = {{2023}},
}

@article{48652,
  author       = {{Schöppner, Volker and Gevers, Karina and Schraa, L. and Töws, P. and Uhlig, K. and Stommel, M. and Decker, J.}},
  journal      = {{Joining Plastics}},
  title        = {{{Auswirkungen unterschiedlicher Erwärmstrategien auf infraroterwärmte Polyphthalamide}}},
  year         = {{2023}},
}

@inproceedings{48661,
  author       = {{Schöppner, Volker and Petzke, J.}},
  location     = {{Gummersbach (Deutschland)}},
  title        = {{{Devulkanisation schwefelvernetzender Elastomere im halbleitergestützten Mikrowellenverfahren}}},
  year         = {{2023}},
}

@article{48464,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Initial value problems can be solved efficiently by means of Runge–Kutta algorithms with adaptive step size control. Diagonally implicit Runge–Kutta (DIRK) methods are the most popular class among the diverse family of Runge–Kutta algorithms. In this paper, the novel class of low‐order explicit last‐stage diagonally implicit Runge–Kutta (ELDIRK) methods are explored, which combine implicit schemes with an additional explicit evaluation as an explicit last stage. ELDIRK Butcher tableaus are used to control embedded RK methods to obtain solutions of different orders. The lower‐order solution is obtained by classical implicit RK stages and the higher‐order solution is obtained by additional explicit evaluation. As a result, a significant reduction in computational cost is achieved by skipping the iterative solution of nonlinear systems for the additional step. The examination of the heat problem and the use of the innovative Butcher tableau in the finite‐element method are the main contributions of this work. Thus, it is possible to establish adaptive step size control for the new low‐order embedded methods based on an empirical method for error estimation. Two‐dimensional simulations are used to show an appropriate algorithm for the ELDIRK schemes. The new Runge–Kutta schemes' predictions of higher‐order convergence are confirmed, and their successful outcomes are illustrated.</jats:p>}},
  author       = {{Westermann, Hendrik and Mahnken, Rolf}},
  issn         = {{1617-7061}},
  journal      = {{PAMM}},
  keywords     = {{Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics}},
  number       = {{2}},
  publisher    = {{Wiley}},
  title        = {{{Numerical investigations of new low‐order explicit last stage diagonal implicit Runge–Kutta schemes with the finite‐element method}}},
  doi          = {{10.1002/pamm.202300071}},
  volume       = {{23}},
  year         = {{2023}},
}

@article{48465,
  author       = {{Westermann, Hendrik and Mahnken, Rolf}},
  issn         = {{0045-7825}},
  journal      = {{Computer Methods in Applied Mechanics and Engineering}},
  keywords     = {{Computer Science Applications, General Physics and Astronomy, Mechanical Engineering, Mechanics of Materials, Computational Mechanics}},
  publisher    = {{Elsevier BV}},
  title        = {{{On the accuracy, stability and computational efficiency of explicit last-stage diagonally implicit Runge–Kutta methods (ELDIRK) for the adaptive solution of phase-field problems}}},
  doi          = {{10.1016/j.cma.2023.116545}},
  volume       = {{418}},
  year         = {{2023}},
}

@article{48673,
  author       = {{Lenz, Peter and Kreutzheide, Phil and Mahnken, Rolf}},
  issn         = {{0045-7949}},
  journal      = {{Computers &amp; Structures}},
  keywords     = {{Computer Science Applications, Mechanical Engineering, General Materials Science, Modeling and Simulation, Civil and Structural Engineering}},
  publisher    = {{Elsevier BV}},
  title        = {{{Multiphase elasto-plastic mean-field homogenisation and its consistent linearisation}}},
  doi          = {{10.1016/j.compstruc.2023.107160}},
  volume       = {{290}},
  year         = {{2023}},
}

@inproceedings{48739,
  author       = {{Moritzer, Elmar and Elsner, Christian Lennart and Deupmann, K.}},
  location     = {{St. Gallen (Schweiz)}},
  title        = {{{Investigation of the Volume Flow in the FFF Process as an Influencing Factor on the Resulting Orientation of Thermally Conductive Filler Particles}}},
  year         = {{2023}},
}

@inproceedings{48738,
  author       = {{Schöppner, Volker and Trienens, Dorte}},
  location     = {{St. Gallen (Schweiz)}},
  title        = {{{Investigation of the influence of screw geometry on the resulting melt quality for cast film extrusion}}},
  year         = {{2023}},
}

@article{48734,
  author       = {{Moritzer, Elmar and Mühlhoff, Frederik Marvin and Rauen, Dennis and Kolbe, B. and Schlee, H. and Hokamp, C.}},
  journal      = {{Kunststoffe}},
  title        = {{{Großflächig, komplex? InMould-Plasma ist die Lösung!}}},
  year         = {{2023}},
}

@article{48733,
  author       = {{Moritzer, Elmar and Kartelmeyer, Stephan and Kreamer, Dennis and Jaroschek, Christoph}},
  journal      = {{Plastics Insights}},
  number       = {{7/2023}},
  pages        = {{38--41}},
  title        = {{{Goodbye Hot Spots - with No Extra Energy Expenditure}}},
  year         = {{2023}},
}

@article{48735,
  author       = {{Schöppner, Volker and Frank, Maximilian and Schall, Christoph Wilhelm Theodor}},
  journal      = {{Kunststoffe}},
  number       = {{9/2023}},
  pages        = {{76--78}},
  title        = {{{Hauptsache, die Wellenlänge stimmt}}},
  year         = {{2023}},
}

@article{48736,
  author       = {{Moritzer, Elmar and Kartelmeyer, Stephan and Kraemer, Dennis and Jaroschek, Christoph}},
  journal      = {{Kunststoffe}},
  number       = {{5/2023}},
  pages        = {{64--66}},
  title        = {{{Hotspots ade - ohne Extra-Energieaufwand}}},
  year         = {{2023}},
}

@inproceedings{48747,
  author       = {{Moritzer, Elmar and Held, Christian}},
  location     = {{Singapur (Singapur)}},
  publisher    = {{Springer Verlag}},
  title        = {{{Optimization of additively manufactured parts for direct screwing}}},
  year         = {{2023}},
}

@article{48746,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis and Hopmann, C. and Wiesel, C. and Nillius, U. and Schön, M. and Limper, A.}},
  journal      = {{KGK Kautschuk Gummi Kunststoffe}},
  pages        = {{47--52}},
  title        = {{{Optimisation of the Simulation of Rubber Extrusion dies by means of the Integration of empirically determined characteristic Maps}}},
  year         = {{2023}},
}

@inproceedings{48745,
  author       = {{Schöppner, Volker and Gevers, Karina and Albrecht, M. and Seefried, A.}},
  location     = {{Chemnitz (Deutschland)}},
  title        = {{{Mischmaterialschweißen von PC/ABS und PMMA beim Warmgasstumpfschweißen mit Runddüsen}}},
  year         = {{2023}},
}

@inproceedings{48744,
  author       = {{Petzke, J. and Kleinschmidt, Dennis and Schöppner, Volker}},
  location     = {{St. Gallen (Schweiz)}},
  title        = {{{Microwave Heating of Rubber Extrudates}}},
  year         = {{2023}},
}

@article{48741,
  author       = {{Moritzer, Elmar and Kartelmeyer, Stephan and Kringe, Roberg and Jaroschek, Christoph}},
  journal      = {{Kunststoffe}},
  number       = {{8/2023}},
  pages        = {{56--59}},
  title        = {{{Konturnah kühlen für wenig Geld}}},
  year         = {{2023}},
}

@article{48639,
  abstract     = {{The seven parallel dissociative ionization channels of benzonitrile yield highly stable fragment ions with commensurate abundance, underlining the potential role of the benzonitrile cation as hub species in the interstellar medium.}},
  author       = {{Kamer, Jerry and Schleier, Domenik and Donker, Merel and Hemberger, Patrick and Bodi, Andras and Bouwman, Jordy}},
  issn         = {{1463-9076}},
  journal      = {{Physical Chemistry Chemical Physics}},
  keywords     = {{Physical and Theoretical Chemistry, General Physics and Astronomy}},
  number       = {{42}},
  pages        = {{29070--29079}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Threshold photoelectron spectroscopy and dissociative photoionization of benzonitrile}}},
  doi          = {{10.1039/d3cp03977c}},
  volume       = {{25}},
  year         = {{2023}},
}

@article{49107,
  abstract     = {{<jats:p>The effect of plaque deposition (atherosclerosis) on blood flow behaviour is investigated via computational fluid dynamics and structural mechanics simulations. To mitigate the narrowing of coronary artery atherosclerosis (stenosis), the computational modelling of auxetic and non-auxetic stents was performed in this study to minimise or even avoid these deposition agents in the future. Computational modelling was performed in unrestricted (open) conditions and restricted (in an artery) conditions. Finally, stent designs were produced by additive manufacturing, and mechanical testing of the stents was undertaken. Auxetic stent 1 and auxetic stent 2 exhibit very little foreshortening and radial recoil in unrestricted deployment conditions compared to non-auxetic stent 3. However, stent 2 shows structural instability (strut failure) during unrestricted deployment conditions. For the restricted deployment condition, stent 1 shows a higher radial recoil compared to stent 3. In the tensile test simulations, short elongation for stent 1 due to strut failure is demonstrated, whereas no structural instability is noticed for stent 2 and stent 3 until 0.5 (mm/mm) strain. The as-built samples show a significant thickening of the struts of the stents resulting in short elongations during tensile testing compared to the simulations (stent 2 and stent 3). A modelling framework for the stent deployment system that enables the selection of appropriate stent designs before in vivo testing is required. This leads to the acceleration of the development process and a reduction in time, resulting in less material wastage. The modelling framework shall be useful for doctors designing patient-specific stents.</jats:p>}},
  author       = {{Pramanik, Sudipta and Milaege, Dennis and Hein, Maxwell and Hoyer, Kay-Peter and Schaper, Mirko}},
  issn         = {{2073-4352}},
  journal      = {{Crystals}},
  keywords     = {{Inorganic Chemistry, Condensed Matter Physics, General Materials Science, General Chemical Engineering}},
  number       = {{11}},
  publisher    = {{MDPI AG}},
  title        = {{{Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach}}},
  doi          = {{10.3390/cryst13111592}},
  volume       = {{13}},
  year         = {{2023}},
}

@inproceedings{48740,
  author       = {{Schöppner, Volker and Trienens, Dorte}},
  location     = {{Ilmenau}},
  title        = {{{Investigation regarding the correlation of the relative influences during the extrusion process of cast films on the residual melt quality}}},
  doi          = {{10.22032/dbt.58867}},
  year         = {{2023}},
}