Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

The matching of experimental polymer processing flows to viscoelastic numerical simulation

Abstract : This paper describes work carried out in order to match experimental processing flows to numerical simulation. The work has brought together a consortium that has developed reliable experimental methods by which processing flows can be achieved in the laboratory and then ranked against numerical simulation. A full rheological characterisation of a selected range of polymers was made and the results compared from different laboratories. The data was fitted to a number of rheological models. Multi-mode parameter fitting was universal for the linear viscoelastic response. Particular attention was paid to the non linear response of the material. Prototype industrial flow experiments were carried out for a number of geometries in different laboratories and the flow birefringence technique was used to map out the experimentally observed stress fields for different polymers in a range of complex flows that contained both extensional and shear flow components. Numerical simulation was carried out using a number of algorithms and a range of constitutive equations. In order to make a quantitative comparison between experiment and simulation, an Advanced Rheological Tool (ART) module was developed that was able in some cases to quantify the level of fit between the numerically predicted and the experimentally observed stress patterns. In addition the ART module was able to optimise certain non-linear parameters in order to improve the quality of fit between experiment and simulation.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-mines-paristech.archives-ouvertes.fr/hal-00536042
Contributeur : Corinne Matarasso <>
Soumis le : lundi 15 novembre 2010 - 10:35:46
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54

Identifiants

  • HAL Id : hal-00536042, version 1

Citation

Jean-François Agassant, Frank P T Baaijens, Heike Bastian, Anka Bernnat, A.C.D. Bogaerds, et al.. The matching of experimental polymer processing flows to viscoelastic numerical simulation. International Polymer Processing, 2002, 17 (1), p.3-10. ⟨hal-00536042⟩

Partager

Métriques

Consultations de la notice

1000