Publikationen

Fiber-dependent injection molding simulation of discontinuous reinforced polymers. Dissertation
Wittemann, F.
2022. KIT Scientific Publishing. doi:10.5445/KSP/1000148499

pyGCodeDecode: A Python package for time-accurate GCode simulation in material extrusion processes
Knirsch, J.; Frölich, F.; Hof, L.; Wittemann, F.; Kärger, L.
2024. Journal of Open Source Software, 9 (99), Art.-Nr.: 6465. doi:10.21105/joss.06465

Efficient Approximation of Varying Fiber Orientation States in Injection Molded Parts Under Consideration of Multiple Manufacturing Uncertainties
Wittemann, F.; Krauß, C.; Kärger, L.
2024. Applied Composite Materials. doi:10.1007/s10443-024-10268-3

Modeling Approach for Reactive Injection Molding of Polydisperse Suspensions with Recycled Thermoset Composites
Jetty, B.; Wittemann, F.; Kärger, L.
2024. Polymers, 16 (16), Art.-Nr.: 2245. doi:10.3390/polym16162245

Evaluation of mechanical properties characterization of additively manufactured components
Frölich, F.; Bechtloff, L.; Scheuring, B. M.; Heuer, A. L.; Wittemann, F.; Kärger, L.; Liebig, W. V.
2024. Progress in Additive Manufacturing. doi:10.1007/s40964-024-00700-2

Schnelle Methode zur Approximation von Druck- und Faserorientierungsverteilung infolge prozess- und materialbedingter Streuungen im Spritzguss
Wittemann, F.; Kärger, L.
2023. NAFEMS-Magazin, 68 (4), 22–28

Influence of fiber breakage on flow behavior in fiber length- and orientation-dependent injection molding simulations
Wittemann, F.; Kärger, L.; Henning, F.
2022. Journal of Non-Newtonian Fluid Mechanics, 310, 104950. doi:10.1016/j.jnnfm.2022.104950

Simplified modeling of electromagnets for dynamic simulation of transient effects for a synchronous electric motor
Bechler, F.; Kesten, J.; Wittemann, F.; Henning, F.; Doppelbauer, M.; Eberhard, P.
2021. International Journal of Mechanical System Dynamics, 1 (1), 89–95. doi:10.1002/msd2.12005

Theoretical approximation of hydrodynamic and fiber-fiber interaction forces for macroscopic simulations of polymer flow process with fiber orientation tensors
Wittemann, F.; Kärger, L.; Henning, F.
2021. Composites. Part C, Open access, 5, Art.-Nr. 100152. doi:10.1016/j.jcomc.2021.100152

Injection molding simulation of short fiber reinforced thermosets with anisotropic and non-Newtonian flow behavior
Wittemann, F.; Maertens, R.; Kärger, L.; Henning, F.
2019. Composites / A, 124, 105476. doi:10.1016/j.compositesa.2019.105476

Simulation of Reinforced Reactive Injection Molding with the Finite Volume Method
Wittemann, F.; Maertens, R.; Bernath, A.; Hohberg, M.; Kärger, L.; Henning, F.
2018. Journal of composites science, 2 (1), Aritcle no: 5. doi:10.3390/jcs2010005

Investigation of the thermoviscoelastic behavior of a closed-cell polymer structural foam under pressure for processing in hybrid LCM processes
Dietrich, S.; Dohmen, C.; Frölich, F.; Jackstadt, A.; Wittemann, F.; Kärger, L.
2024. Proceedings of the 21st European Conference on Composite Materials. Vol 2 Material Science. Ed.: C. Binetruy, 548–554, European Society for Composite Materials (ESCM)

Anisotropic Warpage Prediction of Injection Molded Parts with Phenolic Matrix
Wittemann, F.; Bernath, A.; Meyer, N.; Kärger, L.
2024. Proceedings of the 21st European Conference on Composite Materials (ECCM 2024). Ed.: C. Binetruy. Vol. 5, 139–145, European Society for Composite Materials (ESCM)

Numerical Study on Uncertainty Effects in Injection Molding
Wittemann, F.; Kärger, L.
2023. 23rd International Conference on Composite Materials : (ICCM 23) held in Belfast, Northern Ireland, from July 30th to August 4th 2023, Queen’s University Belfast

Fiber breakage modeling based on hydrodynamic forces in macroscopic process simulations
Wittemann, F.; Maertens, R.; Henning, F.; Kärger, L.
2022. Composites Meet Sustainability - Proceedings of the 20th European Conference on Composite Materials. Ed.: A. Vassilopoulos, École Polytechnique Fédérale de Lausanne (EPFL)

Design Approach for a Novel Multi Material Variable Flux Synchronous Reluctance Machine without Rare Earth Magnets
Kesten, J.; Frölich, F.; Wittemann, F.; Knirsch, J.; Bechler, F.; Kärger, L.; Eberhard, P.; Henning, F.; Doppelbauer, M.
2022. 2022 International Conference on Electrical Machines (ICEM), Valencia, Spain, 05-08 September 2022, 2304–2310, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICEM51905.2022.9910780

Structural health monitoring in additive manufactured structures by total electrical resistance measurements as
Liebig, W.; Muth, M.; Seitz, M.; Wittemann, F.; Weiss, P.
2022. ECCM20 - Proceedings of the 20th European Conference on Composite Materials - Composites Meet Sustainability (Vol 1-6), Ed.: A. Vassilopoulos, 1110–1117, École Polytechnique Fédérale de Lausanne (EPFL)

Evaluation of an Integral Injection Molded Housing for High Power Density Synchronous Machines with Concentrated Single-Tooth Winding
Langheck, A.; Reuter, S.; Saburow, O.; Maertens, R.; Wittemann, F.; Berg, L. F.; Doppelbauer, M.
2019. 2018 8th International Electric Drives Production Conference (EDPC), 4 and 5 December 2018, Schweinfurt, Germany: Proceedings, Art.-Nr.: 8658324, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/EDPC.2018.8658324

Using openfoam for simulation of reactive injection molding as a non-isothermal compressible multiphase flow
Wittemann, F.; Maertens, R.; Kaerger, L.; Henning, F.
2018. 14th International Conference on Flow Processing in Composite Materials, Luleå, S, May 30 - June 01, 2018

Modeling of the Non-Isothermal Crystallization Kinetics of Polyamide 6 Composites During Thermoforming
Kugele, D.; Dörr, D.; Wittemann, F.; Hangs, B.; Rausch, J.; Kärger, L.; Henning, F.
2017. Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017, Ireland, Dublin, 26th - 28th April 2017, Art.Nr. 030005, American Institute of Physics (AIP). doi:10.1063/1.5007992

Initial stack placement strategies for carbon fiber- reinforced sheet molding compound (C-SMC)
Olma, M.; Meyer, N.; Krauß, C.; Wittemann, F.; Kärger, L.
2024, Juli 5. 21st European Conference on Composite Materials (ECCM 2024), Nantes, Frankreich, 2.–5. Juli 2024

Overmolding of 3D Skeleton Winding Structures: Process effects and challenges for process modeling
Dohmen, C.; Meyer, N.; Haas, J.; Beck, B.; Wittemann, F.; Kärger, L.
2024, Juli 5. 21st European Conference on Composite Materials (ECCM 2024), Nantes, Frankreich, 2.–5. Juli 2024

Effects of varying fibre distribution in closed injection pultrusion modelling
Poppe, N.; Zeeb, G.; Wittemann, F.; Wilhelm, M.; Kärger, L.
2024, Juli 3. 21st European Conference on Composite Materials (ECCM 2024), Nantes, Frankreich, 2.–5. Juli 2024

Direktgekühlter Elektromotor mit integralem Leichtbaugehäuse
Wittemann, F.; Kärger, L.; Henning, F.
2019, Oktober 9. Fachtagung „Wärmeleitfähige Kunststoffe für das Thermomanagement“ (2019), Lüdenscheid, Deutschland, 9. Oktober 2019

Injection Molding Simulation with Fiber Length Dependent Flow Modelling
Wittemann, F.; Kärger, L.; Henning, F.
2019, Mai 8. 12th International Conference on Composite Science and Technology (2019), Sorrent, Italien, 8.–10. Mai 2019

Simulation of Insert Deformations for Thermoset Materials
Wittemann, F.; Kärger, L.; Henning, F.
2018, Juni 5. 9. CONNECT! European Moldflow® User Conference (2018), Frankfurt am Main, Deutschland, 5.–6. Juni 2018

Simulation of Discontinuous Fiber Reinforced Composites along the CAE-Chain
Wittemann, F.; Hohberg, M.; Kärger, L.; Henning, F.
2018, März 7. MAHLE R&D Networking - High Performance Plastic (2018), Stuttgart, Deutschland, 7.–8. März 2018

Vorstellung DEmiL – Direktgekühlter Elektromotor mit integralem Leichtbaugehäuse
Wittemann, F.; Kärger, L.; Henning, F.
2018, Januar 23. 20. Leichtbauforum des LBZ-BW e.V. (2018), Renningen, Deutschland, 23. Januar 2018

Strömungsmechanische Simulationen zur Herstellung von Faserverbundbauteilen
Henning, F.; Seuffert, J.; Wittemann, F.
2018, Januar 15. Strömungsmechanik und Strömungsmaschinen (2018), Karlsruhe, Deutschland, 15. Januar 2018

Homogenization of the Anisotropic Thermal Conductivity of Mesostructures in Material Extrusion
Hof, L.; Frölich, F.; Wittemann, F.; Kärger, L.
2024, Juli 2. 21st European Conference on Composite Materials (ECCM 2024), Nantes, Frankreich, 2.–5. Juli 2024

of-rtm-6 – An OpenFOAM-6 extension with curing models and anisotropic permeability for usage in LCM simulations
Bernath, A.; Seuffert, J.; Dietrich, S.; Poppe, N.; Magagnato, D.; Wittemann, F.; Henning, F.; Kärger, L.
2024. doi:10.5281/zenodo.13327698