Viscoelastic simulation of PET stretch/blow molding process

被引：44

作者：

Schmidt, FM ^{[1
]}

Agassant, JF ^{[1
]}

Bellet, M ^{[1
]}

Desoutter, L ^{[1
]}

机构：

[1] SIDEL CORP,F-76600 LE HAVRE,FRANCE

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1996年 / 64卷 / 01期

关键词：

finite element method; splitting technique; stretch/blow molding; viscoelastic fluid;

D O I：

10.1016/0377-0257(95)01420-9

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In the stretch/blow molding process of poly(ethylene terephthalate) (PET) bottles, various parameters such as displacement of the stretch rod, inflation pressure, and polymer temperature distribution, have to be adjusted in order to improve the process. An axisymmetric numerical simulation code has been developed using a volumic approach. The numerical model is based on an updated-Lagrangian finite element method together with a penalty treatment of mass conservation. An automatic remeshing technique has been used. In addition, a decoupled technique has been developed in order to compute the viscoelastic constitutive equation. Successful stretch/blow molding simulations have been performed and compared to experiments.

引用

页码：19 / 42

页数：24

共 21 条

[1] NUMERICAL-ANALYSIS OF UNSTEADY VISCOELASTIC FLOW [J].