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Fiber Orientation Predictions—A Review of Existing Models
Open AccessArticle

Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics

1
Karlsruhe Institute of Technology (KIT), Institute of Vehicle System Technology, 76131 Karlsruhe, Germany
2
Department of Chemical & Biochemical Engineering, Western University, London, ON N6A 5B9, Canada
3
Fraunhofer Institute for Chemical Technology (ICT), 76327 Pfinztal, Germany
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(2), 77; https://doi.org/10.3390/jcs4020077
Received: 29 May 2020 / Accepted: 14 June 2020 / Published: 22 June 2020
(This article belongs to the Special Issue Discontinuous Fiber Composites, Volume II)
The behavior of fiber suspensions during flow is of fundamental importance to the process simulation of discontinuous fiber reinforced plastics. However, the direct simulation of flexible fibers and fluid poses a challenging two-way coupled fluid-structure interaction problem. Smoothed Particle Hydrodynamics (SPH) offers a natural way to treat such interactions. Hence, this work utilizes SPH and a bead chain model to compute a shear flow of fiber suspensions. The introduction of a novel viscous surface traction term is key to achieve full agreement with Jeffery’s equation. Careful modelling of contact interactions between fibers is introduced to model suspensions in the non-dilute regime. Finally, parameters of the Reduced-Strain Closure (RSC) orientation model are identified using ensemble averages of multiple SPH simulations implemented in PySPH and show good agreement with literature data. View Full-Text
Keywords: short fiber reinforcement; process simulation; smoothed particle hydrodynamics short fiber reinforcement; process simulation; smoothed particle hydrodynamics
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MDPI and ACS Style

Meyer, N.; Saburow, O.; Hohberg, M.; Hrymak, A.N.; Henning, F.; Kärger, L. Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics. J. Compos. Sci. 2020, 4, 77.

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