Impact-activated solidification of cornstarch and water suspensions [electronic resource] / Scott R. Waitukaitis.

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Impact-activated solidification of cornstarch and water suspensions [electronic resource] / Scott R. Waitukaitis.

9783319091839 electronic book
3319091832 electronic book
9783319091822

Cham : Springer, [2015]

© 2015.

English

1 online resource.

10.1007/978-3-319-09183-9 doi

TP156.S55

669.94

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.

"Doctoral thesis accepted by the University of Chicago, USA."

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Description based on online resource; title from PDF title page (viewed Aug. 12, 2014).

Springer theses.

Print version: 9783319091822

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