MATEC Web Conf.
Volume 80, 2016NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|Number of page(s)||5|
|Section||Topic 4: Application to composites, polymers and other materials|
|Published online||24 October 2016|
Effect of normal stresses on the results of thermoplastic mold filling simulation
Autodesk, 259-261 Colchester Rd., Kilsyth, Victoria 3137, Australia
a Corresponding author: Alex.Bakharev@autodesk.com
The paper deals with the effect of the normal stresses on the predicted flow front during the filling stage of thermoplastic injection molding. The normal stresses are predicted using the non-linear Criminale-Ericksen-Filbey model (a variant of the second-order fluid rheological model with viscosity, first and second normal stress coefficients dependent upon magnitude of shear rate) incorporated into a comprehensive 3D simulation software for mold-filling analysis. The additional stress term allows the prediction of the so called ear-flow effect (melt racing on the edges of the cavity).
Key words: Finite Elements / Injection Molding / Simulation / Rheology / Normal stress difference / Ear-flow
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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