Newtonian viscosity measured by impression test

Fuqian Yang, J. C.M. Li

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The problem of viscous flow beneath a flat-end planar as well as a cylindrical punch was analyzed when the punch was pressed onto the surface of a semi-infinite Newtonian fluid by a small load. The steady state penetration velocity of the punch was found directly proportional to both the punching stress and the size of the punch and inversely proportional to the viscosity. The relation among these parameters was not affected by the slip or stick boundary condition at the punch/liquid interface. So this 'impression test' should be a good way of measuring viscosity.

Original languageEnglish
Pages (from-to)126-135
Number of pages10
JournalJournal of Non-Crystalline Solids
Issue number2-3
StatePublished - Jun 1997

Bibliographical note

Funding Information:
This work was supported by NSF through DMR9221326m onitored by Dr Bruce MacDonald.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry


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