LEADER 04161nam 22006375 450 001 996418448503316 005 20200704151126.0 010 $a3-030-38348-2 024 7 $a10.1007/978-3-030-38348-0 035 $a(CKB)5300000000003665 035 $a(DE-He213)978-3-030-38348-0 035 $a(MiAaPQ)EBC6133713 035 $a(PPN)243223838 035 $a(EXLCZ)995300000000003665 100 $a20200309d2020 u| 0 101 0 $aeng 135 $aurnn|008mamaa 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aTransient Dynamics of Concentrated Particulate Suspensions Under Shear$b[electronic resource] /$fby Endao Han 205 $a1st ed. 2020. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2020. 215 $a1 online resource (XVI, 96 p. 33 illus., 32 illus. in color.) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 311 $a3-030-38347-4 327 $aChapter1. Introduction -- Chapter2. Ultrasound techniques for studying suspensions -- Chapter3. Investigating impact-activated fronts with ultrasound -- Chapter4. Modeling shear fronts in one dimension -- Chapter5. Rheology in the shear jamming regime -- Chapter6. Conclusions and outlook. 330 $aThis thesis demonstrates the first use of high-speed ultrasound imaging to non-invasively probe how the interior of a dense suspension responds to impact. Suspensions of small solid particles in a simple liquid can generate a rich set of dynamic phenomena that are of fundamental scientific interest because they do not conform to the typical behavior expected of either solids or liquids. Most remarkable is the highly counter-intuitive ability of concentrated suspensions to strongly thicken and even solidify when sheared or impacted. The understanding of the mechanism driving this solidification is, however, still limited, especially for the important transient stage while the response develops as a function of time. In this thesis, high-speed ultrasound imaging is introduced to track, for the first time, the transition from the flowing to the solidified state and directly observe the shock-like shear fronts that accompany this transition. A model is developed that agrees quantitatively with the experimental measurements. The combination of imaging techniques, experimental design, and modeling in this thesis represents a major breakthrough for the understanding of the dynamic response of dense suspensions, with important implications for a wide range of applications ranging from the handling of slurries to additive manufacturing. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aAmorphous substances 606 $aComplex fluids 606 $aFluid mechanics 606 $aMathematical physics 606 $aFluids 606 $aSoft and Granular Matter, Complex Fluids and Microfluidics$3https://scigraph.springernature.com/ontologies/product-market-codes/P25021 606 $aEngineering Fluid Dynamics$3https://scigraph.springernature.com/ontologies/product-market-codes/T15044 606 $aMathematical Applications in the Physical Sciences$3https://scigraph.springernature.com/ontologies/product-market-codes/M13120 606 $aFluid- and Aerodynamics$3https://scigraph.springernature.com/ontologies/product-market-codes/P21026 615 0$aAmorphous substances. 615 0$aComplex fluids. 615 0$aFluid mechanics. 615 0$aMathematical physics. 615 0$aFluids. 615 14$aSoft and Granular Matter, Complex Fluids and Microfluidics. 615 24$aEngineering Fluid Dynamics. 615 24$aMathematical Applications in the Physical Sciences. 615 24$aFluid- and Aerodynamics. 676 $a541.34 700 $aHan$b Endao$4aut$4http://id.loc.gov/vocabulary/relators/aut$0866424 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a996418448503316 996 $aTransient Dynamics of Concentrated Particulate Suspensions Under Shear$91933877 997 $aUNISA