Back to Search Start Over

Measuring the mechanical responses of a jammed discontinuous shear-thickening fluid

Authors :
Jiangjiang Hu
Taihua Zhang
Chen Heng
Jiang Weifeng
Yi Ma
Guangjian Peng
Jia Chao
Source :
Applied Physics Letters. 111:201906
Publication Year :
2017
Publisher :
AIP Publishing, 2017.

Abstract

Discontinuous shear thickening observed in many dense suspensions is rather complicated but takes place as a transient. Its details after jamming are still not clear. By using a modified rheometer with an analog-to-digital converter, we show that there are three amplitude regimes of shear strain after jamming. First, the shear modulus and the force chain angle increase with strain; the jammed state gradually deepens. Second, the jammed state is stable against a further increase in shear stress; the force chain angle is constant and the force network is stable. Third, the jammed state cannot resist a further increase in shear stress; with the increase in the force chain angle, the force chain network is broken.

Details

ISSN :
10773118 and 00036951
Volume :
111
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........712d67de2784529d40176875505a9533
Full Text :
https://doi.org/10.1063/1.5005966