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Comparison of methods to measure yield stress of soft solids
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10.1122/1.3248001
/content/sor/journal/jor2/54/1/10.1122/1.3248001
http://aip.metastore.ingenta.com/content/sor/journal/jor2/54/1/10.1122/1.3248001

Figures

Image of FIG. 1.
FIG. 1.

Notation for paste extrusion through an orifice die.

Image of FIG. 2.
FIG. 2.

Static zones visualization. (a) Sketch of the stripes before extrusion. [(b) and (c)] Picture of the sample after extrusion (longitudinal cut).

Image of FIG. 3.
FIG. 3.

Dynamic experiments instrument setup.

Image of FIG. 4.
FIG. 4.

Strand shear step experiments instrument setup.

Image of FIG. 5.
FIG. 5.

Yield stress of a different formulation at different temperatures using different die diameters.

Image of FIG. 6.
FIG. 6.

Pressure and piston velocity as a function of time for SLOW13 at (upper right box: fit of pressure vs. velocity using Benbow and Bridgwater equation).

Image of FIG. 7.
FIG. 7.

Pressure vs. velocity for SLOW13 at 25, 45, and (solid line is the best fit using Benbow and Bridgwater equation).

Image of FIG. 8.
FIG. 8.

Yield stress of SLOW system at different temperatures.

Image of FIG. 9.
FIG. 9.

Elastic stress vs. strain for SLOW formulations at and .

Image of FIG. 10.
FIG. 10.

Surface fracture phenomena observed on the sample at low temperature using serrated plates.

Image of FIG. 11.
FIG. 11.

Elastic stress vs. strain for SLOW10 at 45 and and .

Image of FIG. 12.
FIG. 12.

Stress as a function of time at a constant shear rate for a sample at (thick line: 2 mm diameter strand and thin line: 3 mm diameter strand).

Image of FIG. 13.
FIG. 13.

Stress as a function of time at a constant shear rate for SLOW samples at .

Image of FIG. 14.
FIG. 14.

Comparison of the yield stress estimated by capillary, dynamic (open diamond), and steady (strand) shear (S in square) techniques as a function of the elastic modulus for SLOW system.

Tables

Generic image for table
TABLE I.

Materials used to prepare paste.

Generic image for table
TABLE II.

Sample formulations (wt %).

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/content/sor/journal/jor2/54/1/10.1122/1.3248001
2010-01-25
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Comparison of methods to measure yield stress of soft solids
http://aip.metastore.ingenta.com/content/sor/journal/jor2/54/1/10.1122/1.3248001
10.1122/1.3248001
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