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@PHDTHESIS{Zwicke:794781,
      author       = {Zwicke, Florian},
      othercontributors = {Behr, Marek and Veroy-Grepl, Karen},
      title        = {{I}nverse shape design in injection molding based on the
                      finite element method},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Aachen},
      reportid     = {RWTH-2020-07871},
      pages        = {1 Online-Ressource (XVII, 109, xxv Seiten) :
                      Illustrationen, Diagramme},
      year         = {2020},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University; Dissertation, Rheinisch-Westfälische Technische
                      Hochschule Aachen, 2020},
      abstract     = {A method is proposed for the inverse design of cavity
                      shapes for the injection molding process. When liquid
                      polymer melt is cooled down in an injection mold to
                      manufacture plastics parts, inhomogeneities in the cooling
                      and solidification processes lead to shape defects in the
                      finished molding. The geometry of the cavity where the
                      liquid melt is injected is largely responsible for the shape
                      of the molding. The method described in this document offers
                      an automatized tool for the determination of a suitable
                      cavity shape that will reduce faults in the molding shape.
                      The basis of this method is a numerical simulation of the
                      injection molding process. This method builds on simulation
                      models for both fluid and solid polymers that incorporate
                      the important physical phenomena of thermoviscoelastic
                      material behavior and solidification. Separate simulation
                      models are described in this document for the solidification
                      and post-ejection stages of the process. They are both
                      equipped with a finite element formulation that makes them
                      suitable for a swift implementation in a computer code. The
                      inverse design method for the cavity shape results from a
                      combination of an inverse formulation of stationary
                      thermoelasticity with an iteration scheme that incorporates
                      the non-elastic effects. This iterative method is
                      demonstrated for two sample cases. The simulation method is
                      shown to represent the important aspects of the viscoelastic
                      behavior and solidification. The iterative inverse design
                      method produces suitable cavity shapes after small numbers
                      of iteration steps. Furthermore, plots of a distance measure
                      over the course of the iteration indicate rapid convergence
                      of the method.},
      cin          = {416010 / 041120},
      ddc          = {620},
      cid          = {$I:(DE-82)416010_20140620$ / $I:(DE-82)041120_20191118$},
      pnm          = {SFB 1120 B02 - Numerische Modellierung und Kompensation des
                      Schwindungs- und Verzugsverhaltens bei Spritzgussverfahren
                      (B02) (260064611) / DFG project 236616214 - SFB 1120:
                      Bauteilpräzision durch Beherrschung von Schmelze und
                      Erstarrung in Produktionsprozessen (236616214)},
      pid          = {G:(GEPRIS)260064611 / G:(GEPRIS)236616214},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2020-07871},
      url          = {https://publications.rwth-aachen.de/record/794781},
}