This thesis approaches impact resistance in dense suspensions from a new perspective. The most well-known example of dense suspensions, a mixture of cornstarch and water, provides enough impact resistance to allow a person to run across its surface. In the past, this phenomenon had been linked to "shear thickening" under a steady shear state attributed to hydrodynamic interactions or granular dilation. However, neither explanation accounted for the stress scales required for a person to run on the surface.
Through this research, it was discovered that the impact resistance is due to local compression of the particle matrix. This compression forces the suspension across the jamming transition and precipitates a rapidly growing solid mass. This growing solid, as a result, absorbs the impact energy. This is the first observation of such jamming front, linking nonlinear suspension dynamics in a new way to the jamming phase transition known from dry granular materials.
| ISBN: | 9783319359274 |
| Publication date: | 17th September 2016 |
| Author: | Scott R Waitukaitis |
| Publisher: | Springer an imprint of Springer International Publishing |
| Format: | Paperback |
| Pagination: | 88 pages |
| Series: | Springer Theses |
| Genres: |
Condensed matter physics (liquid state and solid state physics) Spectrum analysis, spectrochemistry, mass spectrometry Classical mechanics |
This thesis approaches impact resistance in dense suspensions from a new perspective. The most well-known example of dense suspensions, a mixture of cornstarch and water, provides enough impact resistance to allow a person to run across its surface. In the past, this phenomenon had been linked to "shear thickening" under a steady shear state attributed to hydrodynamic interactions or granular dilation. However, neither explanation accounted for the stress scales required for a person to run on the surface.
Through this research, it was discovered that the impact resistance is due to local compression of the particle matrix. This compression forces the suspension across the jamming transition and precipitates a rapidly growing solid mass. This growing solid, as a result, absorbs the impact energy. This is the first observation of such jamming front, linking nonlinear suspension dynamics in a new way to the jamming phase transition known from dry granular materials.
Impact-Activated Solidification of Cornstarch and Water Suspensions features in the following genres: Condensed matter physics (liquid state and solid state physics), Spectrum analysis, spectrochemistry, mass spectrometry, Classical mechanics
Impact-Activated Solidification of Cornstarch and Water Suspensions is available in Paperback, Hardback
Impact-Activated Solidification of Cornstarch and Water Suspensions was written by Scott R Waitukaitis and published by Springer an imprint of Springer International Publishing
Impact-Activated Solidification of Cornstarch and Water Suspensions has 88 pages
Yes it is part of Springer Theses series