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Determining true material constants of semisolid slurries from rotational rheometer data
- Source :
- Solid State Phenomena, 14th International Conference on Semi Solid Processing of Alloys and Composites, S2P 2016
- Publication Year :
- 2016
-
Abstract
- In this work we revisit the issue of obtaining true material constants for semisolid slurries. Therefore, we consider the circular Couette flow of Herschel-Bulkley fluids. We first show how true constants can be obtained using an iterative procedure from experimental data to theory and vice versa. The validity of the assumption that the rate-of-strain distributions across the gap share a common point is also investigated. It is demonstrated that this is true only for fully-yielded Bingham plastics. In other cases, e.g., for partially-yielded Bingham plastics or fully-yielded Herschel-Bulkley materials, the common point for the fully-yielded Bingham case provides a good approximation for determining the material constants only if the gap is sufficiently small. It can thus be used to simplify the iterative procedure in determining the material constants. © 2016 Trans Tech Publications, Switzerland. 256 153 172 Sponsors: Conference code: 184809
- Subjects :
- Work (thermodynamics)
Materials science
Bins
Rheometer
Material constants
Strain
Common point
General Materials Science
Composite material
Couette flow
Couette rheometers
Viscoplastic materials
Rheometry
Experimental data
Strain rate
Mechanics
Semi-solid slurry
Condensed Matter Physics
Rheometers
Atomic and Molecular Physics, and Optics
Material constant
Elastomers
Herschel-Bulkley model
Slurry
Semisolid slurries
Couette rheometer
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Solid State Phenomena, 14th International Conference on Semi Solid Processing of Alloys and Composites, S2P 2016
- Accession number :
- edsair.doi.dedup.....9b9a027f39fdff8e8d3f73be74294cc2