@inproceedings{29946,
  author       = {{Schall, Christoph Wilhelm Theodor and Schöppner, Volker}},
  booktitle    = {{PPS36}},
  keywords     = {{Computing Resources Provided by the Paderborn Center for Parallel Computing}},
  title        = {{{Design of a test bench for measuring the degradation behavior of plastics during processing}}},
  year         = {{2023}},
}

@article{48742,
  author       = {{Schöppner, Volker and Schall, Christoph Wilhelm Theodor}},
  journal      = {{Materials}},
  number       = {{16(17)}},
  pages        = {{5891}},
  title        = {{{Material Characterization of Polypropylene and Polystyrene Regarding Molecular Degradation Behavior}}},
  doi          = {{10.3390/ma16175891}},
  year         = {{2023}},
}

@article{48659,
  author       = {{Trienens, Dorte and Schöppner, Volker and Bunse, Robin}},
  journal      = {{Polymers 2023}},
  title        = {{{Determination of Correlations between Melt Quality and the Screw Performance Index in the Extrusion Process}}},
  doi          = {{https://doi.org/10.3390/polym15163427}},
  year         = {{2023}},
}

@article{48737,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis}},
  journal      = {{SPE Polymers}},
  pages        = {{1--17}},
  title        = {{{Improvement of a method for the correction of wall slip effects within the rheological measurements of filled rubber compounds}}},
  year         = {{2023}},
}

@article{52833,
  author       = {{Schöppner, Volker and Austermeier, Laura and Brüning, Florian and Oldemeier, Jan Philipp and Brandt, O.}},
  issn         = {{2190-4774}},
  journal      = {{EXTRUSION}},
  number       = {{8/2023}},
  pages        = {{56--59}},
  title        = {{{Recycling-Ansatz für mehrkomponentige Kunststoffprodukte durch thermische Verbundtrennung}}},
  year         = {{2023}},
}

@inproceedings{52840,
  author       = {{Schöppner, Volker and Arndt, Theresa}},
  booktitle    = {{76th Annual Assembly of the International Institute of Welding (IIW)}},
  title        = {{{Anvil-free ultrasonic welding for welding situations with one sided access}}},
  year         = {{2023}},
}

@article{29947,
  author       = {{Schall, Christoph Wilhelm Theodor and Schöppner, Volker}},
  journal      = {{Polymer Engineering and Science}},
  keywords     = {{Computing Resources Provided by the Paderborn Center for Parallel Computing}},
  number       = {{3}},
  pages        = {{815--823}},
  title        = {{{Measurement of material degradation in dependence of shear rate, temperature, and residence time}}},
  doi          = {{10.1002/pen.25887}},
  volume       = {{62}},
  year         = {{2022}},
}

@misc{34723,
  author       = {{Schöppner, Volker and Gevers, Karina and Schraa, L. and Töws, P.}},
  booktitle    = {{Joining Plastics}},
  issn         = {{1864-3450}},
  title        = {{{Auswirkungen unterschiedlicher Erwärmstrategien auf die quasistatische und zyklische Belastbarkeit von infrarotgeschweißten, glasfaserverstärkten Thermoplastbauteilen}}},
  year         = {{2022}},
}

@inproceedings{34717,
  author       = {{Schöppner, Volker and Brüning, Florian and Sommer, L.}},
  location     = {{Fukuoka}},
  title        = {{{A Reverse Engineering Approach for Calibrating Frictional Behavior of Contact Models for Numerical Simulation of Solids Conveying in Extruders}}},
  year         = {{2022}},
}

@misc{34722,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis and Nillius, U. and Hopmann, C.}},
  booktitle    = {{GAK}},
  title        = {{{Auswirkungen des Vorscherungseinflusses im Extrusionsprozess auf die rheologischen Kennwerte gefüllter Kautschukmischungen}}},
  year         = {{2022}},
}

@misc{34721,
  author       = {{Schöppner, Volker and Dörner, Marius and Frank, Maximilian and Schall, Christoph Wilhelm Theodor}},
  booktitle    = {{Kunststoffe}},
  title        = {{{Auf der Welle zum Mischerfolg}}},
  year         = {{2022}},
}

@inproceedings{34730,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis}},
  location     = {{Hannover}},
  title        = {{{Estimation and correction of non-isothermal effects of carbon black-filled rubber compounds in viscosity measurements}}},
  year         = {{2022}},
}

@inproceedings{34738,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis and Hopmann, C. and Limper, A. and Fey, F. and Facklam, M. and Schön, M.}},
  location     = {{Aachen}},
  title        = {{{Investigations on the Influence of Viscoelasticity on the Swell Behaviour and Flow Instabilities of Carbon Black-Filled Rubber Compounds}}},
  year         = {{2022}},
}

@inproceedings{34735,
  author       = {{Schöppner, Volker and Brüning, Florian}},
  location     = {{Fukuoka}},
  title        = {{{Investigating Different Methods for Numerical Simulation of Temperature Development in a Feed Section of a Single-Screw Extruder}}},
  year         = {{2022}},
}

@inproceedings{34734,
  author       = {{Schöppner, Volker and Köllermeier, Jonas}},
  location     = {{Fukuoka}},
  title        = {{{Integration of IR Based Inline Measurement Systems of the Surface Temperature of Square Hollow Profiles in an Extrusion Process}}},
  year         = {{2022}},
}

@inproceedings{34737,
  author       = {{Schöppner, Volker and Frank, Maximilian}},
  location     = {{Fukuoka}},
  title        = {{{Investigation of the Pressure-Throughput Behavior of Different Spiral Shearing Sections on an Analytical and Simulative Basis}}},
  year         = {{2022}},
}

@inproceedings{34740,
  author       = {{Schöppner, Volker and Altepeter, Matthias and Wanke, S.}},
  location     = {{Fukuoka}},
  title        = {{{Modelling of the material degradation of polypropylene on the co-rotating twin-screw extruder}}},
  year         = {{2022}},
}

@misc{34752,
  author       = {{Schöppner, Volker and Kleinschmidt, Dennis and Nillius, U. and Hopmann, C.}},
  booktitle    = {{GAK}},
  title        = {{{Weiterentwicklung eines Verfahrens zur Korrektur von Wandgleiteffekten im Rahmen rheologischer Messungen an gefüllten Kautschukmischungen}}},
  year         = {{2022}},
}

@article{33090,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Heated tool butt welding is a method often used for joining thermoplastics, especially when the components are made out of different materials. The quality of the connection between the components crucially depends on a suitable choice of the parameters of the welding process, such as heating time, temperature, and the precise way how the parts are then welded. Moreover, when different materials are to be joined, the parameter values need to be tailored to the specifics of the respective material. To this end, in this paper, three approaches to tailor the parameter values to optimize the quality of the connection are compared: a heuristic by Potente, statistical experimental design, and Bayesian optimization. With the suitability for practice in mind, a series of experiments are carried out with these approaches, and their capabilities of proposing well-performing parameter values are investigated. As a result, Bayesian optimization is found to yield peak performance, but the costs for optimization are substantial. In contrast, the Potente heuristic does not require any experimentation and recommends parameter values with competitive quality.</jats:p>}},
  author       = {{Gevers, Karina and Tornede, Alexander and Wever, Marcel Dominik and Schöppner, Volker and Hüllermeier, Eyke}},
  issn         = {{0043-2288}},
  journal      = {{Welding in the World}},
  keywords     = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{A comparison of heuristic, statistical, and machine learning methods for heated tool butt welding of two different materials}}},
  doi          = {{10.1007/s40194-022-01339-9}},
  year         = {{2022}},
}

@inproceedings{34727,
  author       = {{Schöppner, Volker and Köllermeier, Jonas and Hiesgen, G. and Trippe, J.}},
  location     = {{Aachen}},
  title        = {{{Development of Simulation Based Assistant Systems for Automatic Process Monitoring and Derivation of Recommendations to Optimize a Profile Extrusion Line}}},
  year         = {{2022}},
}