Winkelmann, Felix und Hein, Robert und Baid, Harsh und Cantarutti, Andrea (2023) Process analysis of temperature and eigenstrains in stiffening ribs printed on a multi curved structure with a robot-based extrusion process. Sim-Am 2023, 2023-07-25 - 2023-07-28, München, Deutschland.
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Kurzfassung
In this study, we investigate simulations for a pellet-based extrusion process with high-performance materials for 3D printing. The utilization of a robotic arm equipped with an extruder mounted on it has opened up new avenues for 3D printing, such as printing on curved surfaces or large overhangs without requiring additional support structures. In this research, our focus is on a doubly curved Carbon Fiber Reinforced Polymer (CFRP) structure, which has been strengthened by adding short fiber-reinforced ribs. These ribs are printed onto the curved surface of the structure to enhance its stiffness. However, during the high-temperature printing process with highperformance materials, significant temperature gradients occur, leading to eigenstrains and deformation of the ribs. To predict the impact of these effects on the stiffness of the structure, a process simulation is conducted by using the GENOA 3DP software suite from Alpha STAR Corp. The proposed AM process simulation takes into account AM parameters such as the toolpath (Gcode), deposition rate and extrusion temperature. The thermophysical process is modelled by an element-by-element activation based on the toolpath so that local temperature gradients are captured. This allows the consideration of manufacturing related effects for the prediction of process-dependent material and component properties. The primary objectives of this study are to simulate the intricate extrusion process and to estimate the eigenstrains and deformations that occur during the process as well as to gain an in- depth understanding of the process for further optimisation.
elib-URL des Eintrags: | https://elib.dlr.de/197193/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Titel: | Process analysis of temperature and eigenstrains in stiffening ribs printed on a multi curved structure with a robot-based extrusion process | ||||||||||||||||||||
Autoren: |
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Datum: | 28 Juli 2023 | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | 3D Druck, Simulation, Prozesssimulation, Extrusionsprozess | ||||||||||||||||||||
Veranstaltungstitel: | Sim-Am 2023 | ||||||||||||||||||||
Veranstaltungsort: | München, Deutschland | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 25 Juli 2023 | ||||||||||||||||||||
Veranstaltungsende: | 28 Juli 2023 | ||||||||||||||||||||
Veranstalter : | Eccomas | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Umweltschonender Antrieb | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L CP - Umweltschonender Antrieb | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Werkstoffe und Herstellverfahren, L - Digitale Technologien | ||||||||||||||||||||
Standort: | Braunschweig | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Systemleichtbau Institut für Systemleichtbau > Strukturmechanik | ||||||||||||||||||||
Hinterlegt von: | Winkelmann, Felix | ||||||||||||||||||||
Hinterlegt am: | 12 Sep 2023 09:08 | ||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:57 |
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