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Simulation of Reinforced Reactive Injection Molding with the Finite Volume Method

Wittemann, Florian; Maertens, Robert; Bernath, Alexander; Hohberg, Martin; Kärger, Luise; Henning, Frank

Abstract:
The reactive process of reinforced thermoset injection molding significantly influences the mechanical properties of the final composite structure. Therefore, reliable process simulation is crucial to predict the process behavior and relevant process effects. Virtual process design is thus highly important for the composite manufacturing industry for creating high quality parts. Although thermoset injection molding shows a more complex flow behavior, state of the art molding
simulation software typically focusses on thermoplastic injection molding. To overcome this gap in virtual process prediction, the present work proposes a finite volume (FV) based simulation method, which models the multiphase flow with phase-dependent boundary conditions. Compared to state-of-the-art Finite-Element-based approaches, Finite-Volume-Method (FVM) provides more adequate multiphase flow modeling by calculating the flow at the cell surfaces with an Eulerian approach. The new method also enables the description of a flow region with partial wall contact.
Furthermore, fiber orientation, curing and viscosity models are used to simulate the reinforced reactive injection molding process. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000099311
Veröffentlicht am 30.10.2019
Originalveröffentlichung
DOI: 10.3390/jcs2010005
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Fahrzeugsystemtechnik (FAST)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2018
Sprache Englisch
Identifikator ISSN: 2504-477X
KITopen-ID: 1000099311
Erschienen in Journal of composites science
Band 2
Heft 1
Seiten Aritcle no: 5
Vorab online veröffentlicht am 31.01.2018
Schlagwörter reinforced reactive injection molding; thermoset processing; process simulation; FVM; OpenFOAM
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