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000929950 019__ $$a1145558653
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000929950 1001_ $$aHan, Endao,$$eauthor.
000929950 24510 $$aTransient dynamics of concentrated particulate suspensions under shear /$$cEndao Han.
000929950 260__ $$a[S.l.] :$$bSPRINGER,$$c2020.
000929950 300__ $$a1 online resource
000929950 336__ $$atext$$btxt$$2rdacontent
000929950 337__ $$acomputer$$bc$$2rdamedia
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000929950 4901_ $$aSpringer theses
000929950 500__ $$a"Doctoral thesis accepted by the University of Chicago, IL, USA."
000929950 504__ $$aIncludes bibliographical references.
000929950 5050_ $$aChapter 1. Introduction -- Chapter 2. Ultrasound techniques for studying suspensions -- Chapter 3. Investigating impact-activated fronts with ultrasound -- Chapter 4. Modeling shear fronts in one dimension -- Chapter 5. Rheology in the shear jamming regime -- Chapter 6. Conclusions and outlook.
000929950 506__ $$aAccess limited to authorized users.
000929950 520__ $$aThis thesis demonstrates the first use of high-speed ultrasound imaging to non-invasively probe how the interior of a dense suspension responds to impact. Suspensions of small solid particles in a simple liquid can generate a rich set of dynamic phenomena that are of fundamental scientific interest because they do not conform to the typical behavior expected of either solids or liquids. Most remarkable is the highly counter-intuitive ability of concentrated suspensions to strongly thicken and even solidify when sheared or impacted. The understanding of the mechanism driving this solidification is, however, still limited, especially for the important transient stage while the response develops as a function of time. In this thesis, high-speed ultrasound imaging is introduced to track, for the first time, the transition from the flowing to the solidified state and directly observe the shock-like shear fronts that accompany this transition. A model is developed that agrees quantitatively with the experimental measurements. The combination of imaging techniques, experimental design, and modeling in this thesis represents a major breakthrough for the understanding of the dynamic response of dense suspensions, with important implications for a wide range of applications ranging from the handling of slurries to additive manufacturing.
000929950 588__ $$aOnline resource; title from PDF title page (SpringerLink, viewed April 9, 2020).
000929950 650_0 $$aSuspensions (Chemistry)
000929950 650_0 $$aShear flow.
000929950 77608 $$iPrint version:$$z3030383474$$z9783030383473$$w(OCoLC)1130248309
000929950 830_0 $$aSpringer theses.
000929950 852__ $$bebk
000929950 85640 $$3SpringerLink$$uhttps://univsouthin.idm.oclc.org/login?url=http://link.springer.com/10.1007/978-3-030-38348-0$$zOnline Access$$91397441.1
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