Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
671111 | Journal of Non-Newtonian Fluid Mechanics | 2010 | 10 Pages |
Abstract
The overall picture is though more diverse, as the possibility to perform ideal uni-axial extension is very dependent of the constitutive equation. Especially the weighting between the convected relative strain tensors in the K-BKZ model seems to control the deviation from ideal behavior. Consequently, for melts or entangled liquids a proper uni-axial flow will be kept for a much wider parameter range. In fact only the appearance of a ductile necking or a large initial thickness of the sample will create a significant deviation from ideal extension. These simulations were based on MSF constitutive model.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Kaijia Yu, Jose Manuel Román MarÃn, Henrik Koblitz Rasmussen, Ole Hassager,