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Does N 1 or N 2 control the onset of edge fracture?

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Abstract

The “edge fracture” instability which occurs at the air/liquid interface in a cone-and-plate rheometer is studied for six elastic polymer solutions. Theoretical models for the onset of edge fracture are evaluated in light of the experimental data. The data are well-described by the Tanner-Keentok model, which predicts that fracture will occur whenever a critical value of the second normal stress difference is exceeded in magnitude.

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References

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Utah, 84112, Salt Lake City, UT, USA

    C. S. Lee, B. C. Tripp &  J. J. Magda

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  1. C. S. Lee
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  2. B. C. Tripp
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  3. J. J. Magda
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Lee, C.S., Tripp, B.C. & Magda, J.J. Does N 1 or N 2 control the onset of edge fracture?. Rheola Acta 31, 306–308 (1992). https://doi.org/10.1007/BF00366509

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  • DOI: https://doi.org/10.1007/BF00366509

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