Impact of viscoelasticity on gage variation in film casting

被引：8
作者：
Rajagopalan, D [1 ]
机构：
[1] Dupont Co, Cent Res & Dev, Wilmington, DE 19880 USA
来源：
JOURNAL OF RHEOLOGY | 1999年 / 43卷 / 01期
关键词：
D O I：
10.1122/1.550973
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Mathematical modeling of the melt draw step in film casting is used to understand the impact of viscoelasticity on gage variations. The thin film approximation is used to simplify the governing equations to a set of two-dimensional partial differential equations which are solved using the finite element method. Simulations using the Giesekus constitutive model show that the magnitude of thickness variations increases with increasing flow elasticity or Deborah number. (C) 1999 The Society of Rheology. [S0148-6055(99)00101-7].
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页码：73 / 83
页数：11
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