Calendering of coextruded polymer structures

The velocity and pressure fields that form within the gap of a calender are calculated with onedimensional and two-dimensional isothermal monolayer models. The one-dimensional model simplifies the momentum balance and the continuity equation by the lubrication approximation. Pressure and velocity fi...

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Bibliographic Details
Published inInternational Journal of Material Forming Vol. 1; no. Suppl 1; pp. 791 - 794
Main Authors Serrat, M. C., Laffargue, J., Agassant, J. F., Bikard, J.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Paris Springer-Verlag 01.04.2008
Springer Verlag
Subjects
CAE) and Design
Computational Intelligence
Computer-Aided Engineering (CAD
Engineering
Engineering Sciences
Machines
Manufacturing
Materials
Materials Science
Mechanical Engineering
Processes
Symposium MS11: Processing of polymers
Finite Element Method
calender bank
gap
lubrication approximation
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Summary:The velocity and pressure fields that form within the gap of a calender are calculated with onedimensional and two-dimensional isothermal monolayer models. The one-dimensional model simplifies the momentum balance and the continuity equation by the lubrication approximation. Pressure and velocity fields are obtained analytically with this calculation. The velocity and pressure fields are numerically calculated with a two-dimensional model based on Forge®2005. Forge®2005 is based on a Finite Element Method. The pressure field is determined by the gap height, the circumferential speed of the rolls and the rheological behaviour of the polymer. The one and two-dimensional pressure fields are compared.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-008-0294-7