Transient dynamics of concentrated particulate suspensions under shear / Endao Han.
2020
QD549
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Title
Transient dynamics of concentrated particulate suspensions under shear / Endao Han.
Author
Han, Endao, author.
ISBN
9783030383480 (electronic book)
3030383482 (electronic book)
3030383474
9783030383473
3030383482 (electronic book)
3030383474
9783030383473
Publication Details
[S.l.] : SPRINGER, 2020.
Language
English
Description
1 online resource
Call Number
QD549
Dewey Decimal Classification
541/.345
Summary
This thesis demonstrates the first use of high-speed ultrasound imaging to non-invasively probe how the interior of a dense suspension responds to impact. Suspensions of small solid particles in a simple liquid can generate a rich set of dynamic phenomena that are of fundamental scientific interest because they do not conform to the typical behavior expected of either solids or liquids. Most remarkable is the highly counter-intuitive ability of concentrated suspensions to strongly thicken and even solidify when sheared or impacted. The understanding of the mechanism driving this solidification is, however, still limited, especially for the important transient stage while the response develops as a function of time. In this thesis, high-speed ultrasound imaging is introduced to track, for the first time, the transition from the flowing to the solidified state and directly observe the shock-like shear fronts that accompany this transition. A model is developed that agrees quantitatively with the experimental measurements. The combination of imaging techniques, experimental design, and modeling in this thesis represents a major breakthrough for the understanding of the dynamic response of dense suspensions, with important implications for a wide range of applications ranging from the handling of slurries to additive manufacturing.
Note
"Doctoral thesis accepted by the University of Chicago, IL, USA."
Bibliography, etc. Note
Includes bibliographical references.
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Access limited to authorized users.
Source of Description
Online resource; title from PDF title page (SpringerLink, viewed April 9, 2020).
Series
Springer theses.
Available in Other Form
Print version: 9783030383473
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Table of Contents
Chapter 1. Introduction
Chapter 2. Ultrasound techniques for studying suspensions
Chapter 3. Investigating impact-activated fronts with ultrasound
Chapter 4. Modeling shear fronts in one dimension
Chapter 5. Rheology in the shear jamming regime
Chapter 6. Conclusions and outlook.
Chapter 2. Ultrasound techniques for studying suspensions
Chapter 3. Investigating impact-activated fronts with ultrasound
Chapter 4. Modeling shear fronts in one dimension
Chapter 5. Rheology in the shear jamming regime
Chapter 6. Conclusions and outlook.