Modelling squeeze flow of viscous polymer melts

Paper


Shelley, Tristan, Liu, Xiaolin, Viedt, Martin, Heitzmann, Michael and Paton, Rowan. 2014. "Modelling squeeze flow of viscous polymer melts." Oñate, E., Oliver, J. and Huerta, A. (ed.) 11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI). Barcelona, Spain 20 - 25 Jul 2014
Paper/Presentation Title

Modelling squeeze flow of viscous polymer melts

Presentation TypePaper
AuthorsShelley, Tristan (Author), Liu, Xiaolin (Author), Viedt, Martin (Author), Heitzmann, Michael (Author) and Paton, Rowan (Other)
EditorsOñate, E., Oliver, J. and Huerta, A.
Journal or Proceedings Title11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014
Number of Pages12
Year2014
Web Address (URL) of Paperhttps://www.scribd.com/document/335694722/Proceedings-Wccm-2014
Conference/Event11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI)
Event Details
11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI)
Event Date
20 to end of 25 Jul 2014
Event Location
Barcelona, Spain
Abstract

In the present work, squeeze flow between rigid platens of viscous polymer melts is investigated through two-dimensional finite element simulations using MSC Mentat/MSC Marc. The polymer under investigation is a thermoplastic processed above its melt temperature. The aim of the present work is to develop and validate a finite element modelling framework capable of simulating squeeze flow for a range of geometries and processing parameters. The models will be used to analyse the thickness evolution of the polymer film over time, as well as the shape and volume of the spew fillet; the simulation framework is to be validated using analytical solutions. Initial validations resulted in an average difference of 1% between the analytical and FEA solutions for final thickness of the weld polymer, with a maximum difference of 3.47%. The intention is to extend the simulations to be capable of representing non-Newtonian viscosities in the fluid model due to variations in the processing temperature.

KeywordsSqueeze Flow, Finite Element Analysis, Thermoplastics, Welding
ANZSRC Field of Research 2020400102. Aerospace structures
401602. Composite and hybrid materials
401706. Numerical modelling and mechanical characterisation
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Byline AffiliationsUniversity of Queensland
Cooperative Research Centre for Advanced Composite Structures, Australia
Institution of OriginUniversity of Southern Queensland
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