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The dynamics of cylindrical samples in dual wind-up extensional rheometers
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10.1122/1.3568816
/content/sor/journal/jor2/55/3/10.1122/1.3568816
http://aip.metastore.ingenta.com/content/sor/journal/jor2/55/3/10.1122/1.3568816
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Simulation of a circular cylindrical sample in the SER. is the initial diameter of the sample and is the distance between the rotational axes of the drums. The diameter is .

Image of FIG. 2.
FIG. 2.

Simulation of the extension of a neo-Hookean sample in the SER. The initial sample diameter is . The finite element mesh corresponds to half of the sample. The nominal Hencky strain is .

Image of FIG. 3.
FIG. 3.

Surface contours at the mid-plane of the sample at . The simulation (solid lines) is based on (a) the neo-Hookean model and the MSF model (6) at (b) and (c) . The dashed lines are the expected contour assuming ideal uni-axial deformation. The initial sample diameter is .

Image of FIG. 4.
FIG. 4.

Simulations of the extension of neo-Hookean elastomer. The Hencky strain based on sample diameter [see Eq. (3)] is shown as a function of the nominal Hencky strain [see Eq. (2)], and the solid line represents ideal uni-axial deformation . The simulations show the influence of the initial diameter: , 1, and 2 mm.

Image of FIG. 5.
FIG. 5.

Simulations of the extension of a melt based on the MSF model in Eq. (6) at a Deborah number of . The Hencky strain based on sample diameter [see Eq. (3)] is shown as a function of the nominal Hencky strain [see Eq. (2)], and the solid line represents ideal uni-axial deformation . The simulations show the influence of the initial diameter: , 1, and 2 mm.

Image of FIG. 6.
FIG. 6.

Simulations of the extension of an elastomer and a polymer melt. The simulations are based on the neo-Hookean model and the MSF model in Eq. (6) at Deborah numbers of and . The initial diameter of the sample is fixed at . The Hencky strain based on sample diameter [see Eq. (3)] is shown as a function of the nominal Hencky strain [see Eq. (2)], and the solid line represents ideal uni-axial deformation .

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/content/sor/journal/jor2/55/3/10.1122/1.3568816
2011-03-22
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The dynamics of cylindrical samples in dual wind-up extensional rheometers
http://aip.metastore.ingenta.com/content/sor/journal/jor2/55/3/10.1122/1.3568816
10.1122/1.3568816
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