Modelling squeeze flow of viscous polymer melts

Shelley, Tristan ORCID: https://orcid.org/0000-0002-4812-0285 and Liu, Xiaolin and Veidt, Martin and Heitzmann, Michael and Paton, Rowan (2014) Modelling squeeze flow of viscous polymer melts. In: 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), 20–25 July 2014, 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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 16 Sep 2020 05:48
Last Modified: 09 Oct 2020 07:32
Uncontrolled Keywords: Squeeze Flow, Finite Element Analysis, Thermoplastics, Welding
Fields of Research (2008): 09 Engineering > 0901 Aerospace Engineering > 090103 Aerospace Structures
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/39439

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