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  4. Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics
 
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2020
Journal Article
Title

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

Abstract
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.
Author(s)
Meyer, Nils
Karlsruhe Institute of Technology (KIT)
Saburow, Oleg
Karlsruhe Institute of Technology (KIT)
Hohberg, Martin
Karlsruhe Institute of Technology (KIT)
Hrymak, Andrew
Department of Chemical & Biochemical Engineering, Western University
Henning, Frank  
Fraunhofer-Institut für Chemische Technologie ICT  
Kärger, Luise
Karlsruhe Institute of Technology (KIT)
Journal
Journal of composites science  
Open Access
File(s)
Download (2.65 MB)
Rights
CC BY 4.0: Creative Commons Attribution
DOI
10.24406/publica-r-265870
10.3390/jcs4020077
Language
English
Fraunhofer-Institut für Chemische Technologie ICT  
Keyword(s)
  • short fiber reinforcement

  • process simulation

  • smoothed particle hydrodynamics

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