Analytical solution to calendering in eccentric cylindrical coordinates

P Poungthong, C Kolitawong, AJ Giacomin - Physics of Fluids, 2023 - pubs.aip.org
Calendering is the process in which molten material is dragged through the nip region to
produce a film or sheet. By nip region, we mean the area between two corotating rolls. Here …

Nonlinear viscoelastic properties of MR fluids under large-amplitude-oscillatory-shear

WH Li, H Du, G Chen, SH Yeo, N Guo - Rheologica acta, 2003 - Springer
Nonlinear viscoelastic properties of the MR fluid, MRF-132LD, under large-amplitude
oscillatory shear were investigated. This was accomplished by carrying out the experiments …

Extruding plastic pipe from eccentric dies

C Saengow, AJ Giacomin, C Kolitawong - Journal of Non-Newtonian Fluid …, 2015 - Elsevier
To solidify plastic pipe, the pipe is transported through a long cooling chamber. Inside this
chamber, inside the pipe, the plastic remains molten, and this inner surface solidifies last …

Invited Article: Local shear stress transduction

C Kolitawong, AJ Giacomin, LM Johnson - Review of Scientific …, 2010 - pubs.aip.org
This is a comprehensive review of local direct measurement shear stress transducers.
Transducers are first classified by their movement, measuring mode, and mechanism. These …

Knuckle formation from melt elasticity in plastic pipe extrusion

C Saengow, AJ Giacomin, C Kolitawong - Journal of Non-Newtonian Fluid …, 2017 - Elsevier
When plastic pipe is solidified, it proceeds through a long cooling chamber. Inside the
chamber, inside the extrudate, the plastic is molten, and this inner surface solidifies last. Sag …

Polymer process partitioning: Extruding plastic pipe

C Saengow - 2016 - search.proquest.com
When plastic pipe is solidified, it proceeds through a long cooling chamber. Inside this
chamber, inside the hollow extrudate, the plastic is molten, and this inner surface solidifies …

Assumed periodicity and dynamic shear stress transduction in rheometry

C Kolitawong, AJ Giacomin, LM Johnson - Journal of Rheology, 2010 - pubs.aip.org
In viscoelastic property measurements, material is subjected to time unsteady deformations
using a rheometer. In step shear strain experiments, for example, the shear strain suddenly …

[PDF][PDF] Sliding plate rheometer and its applications

C Kolitawong, AJ Giacomin - Journal of King Mongkut's University of …, 2009 - thaiscience.info
Rheology†, a study of flow and deformation of matter, described the interrelation between
force, deformation, and time. It is a wide discipline including classical fluid mechanics and …

[PDF][PDF] Transient Rheology of a Polypropylene Melt Reinforced with Long Glass Fibers

KC Ortman, N Agarwal, DG Baird… - … Composites I, Gay⁃ …, 2009 - researchgate.net
The purpose of this research is to understand the transient fiber orientation and the
associated rheology of long glass fiber (> 1mm) reinforced polypropylene, in a well-defined …

Converging shear rheometer

HM Baek, AW Mix, AJ Giacomin - Korea-Australia rheology journal, 2014 - Springer
For highly viscous fluids that slip in parallel sliding plate rheometers, we want to use a
slightly converging flow to suppress this wall slip. In this work, we first attack the steady …