Injection Molding
We model the mold filling process for thermoplastics and thermosets non-isothermal, transient and three-dimensional. The simulation model corresponds to the cavity in the real process. Screw chamber, plastication unit and temperature control are included as initial/boundary conditions. Process parameters such as filling rate, switchover point, material and mold temperature can be adopted. The material is simulated non-Newtonian and, in the case of fiber reinforcement, anisotropic. Key results are temperature and pressure distribution, fiber orientation and statements about weld lines, air inclusions, etc. The fiber orientation created in the process can be used for structure and warpage simulations.
Research focus
- Non-Newtonian Flow Modelling
- Anisotropic Flow
- Fiber Breakage
- Warpage
- Recycling Materials
- Close to contour tempering
- Probabilistic Simulations
Research projects
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ContactDr.-Ing. Florian Wittemann
M.Sc. Bhimesh |
Selected publications in the research field
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)
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)
Wittemann, F.; Kärger, L.; Henning, F.
2022. Journal of Non-Newtonian Fluid Mechanics, 310, 104950. doi:10.1016/j.jnnfm.2022.104950
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
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
Wittemann, F.
2022. KIT Scientific Publishing. doi:10.5445/KSP/1000148499
Wittemann, F.
2022, February 16. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000142956
Wittemann, F.; Kärger, L.; Henning, F.
2021. Composites. Part C, Open access, 5, Art.-Nr. 100152. doi:10.1016/j.jcomc.2021.100152
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
Wittemann, F.; Maertens, R.; Kärger, L.; Henning, F.
2019. Composites / A, 124, 105476. doi:10.1016/j.compositesa.2019.105476