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Numerical simulation of flow-induced birefringence in injection molded disk  

Shyu, Goang-Ding (Institute of Polymer Engineering, The University of Akron)
Avraam I. Isayev (Institute of Polymer Engineering, The University of Akron)
Lee, Ho-Sang (Department of Mechanical Design Engineering, Chungju National University)
Publication Information
Korea-Australia Rheology Journal / v.15, no.4, 2003 , pp. 159-166 More about this Journal
Abstract
This study is an attempt to understand the birefringence and stress development in an injection molded disk. A computer code was developed to simulate all three stages of the injection molding process filling, packing and cooling by finite element method. The constitutive equation used here was compressible Leonov model. The PVT relationship was assumed to follow the Tait equation. The flow-induced birefringence was related to the calculated flow stresses through the linear stress-optical law. The predicted birefringence was in good agreement with the experimental results.
Keywords
birefringence; viscoelasticity; injection molding; polystyrene;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 6  (Related Records In Web of Science)
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