3D Viscoelastic Finite Element Modelling of Polymer Flow in the Fiber Drawing Process for Microstructured Polymer Optical Fiber Fabrication

Andrea Fasano, Henrik K. Rasmussen, J. M. R. Marín

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Abstract

The process of drawing an optical fiber from a polymer preform is still not completely understood,although it represents one of the most critical steps in the process chain for the fabrication of microstructuredpolymer optical fibers (mPOFs). Here we present a new approach for the numerical modelling of the fiber drawingprocess using a fully three-dimensional and time-dependent finite element method, giving significant insightinto this widely spread mPOF production technique. Our computational predictions are physically based on theviscoelastic fluid dynamics of polymers. Until now the numerical modelling of mPOF drawing has mainly beenbased on principles, such as generalized Newtonian fluid dynamics, which are not able to cope with the elasticcomponent in polymer flow. In the present work, we employ the K-BKZ constitutive equation, a non-linearsingle-integral model that combines both elastic and viscous ideas and can appropriately describe the physics ofpolymers under processing.
Original languageEnglish
Title of host publicationProceedings of the 24th International Conference on Plastic Optical Fibers
Number of pages4
Publication date2015
Publication statusPublished - 2015
EventThe 24th International Conference on Plastic Optical Fibers - Nuremberg/Franconia , POF 2015, Germany
Duration: 22 Sep 201524 Sep 2015

Conference

ConferenceThe 24th International Conference on Plastic Optical Fibers
LocationNuremberg/Franconia
CountryGermany
CityPOF 2015
Period22/09/201524/09/2015

Keywords

  • Fiber drawing
  • Numerical simulation
  • Finite element method
  • Microstructured polymer optical fiber
  • Polymers

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