A new plate impact configuration is described for subjecting lubricants to simple shearing motion under uniform hydrostatic pressure. Thin layers (∼50 μm thick) of the lubricant are confined between two hard metallic plates which are subjected to impact by a parallel plate that is inclined relative to the direction of approach in order to induce both pressure and shear loading. Stress waves in the hard plates are monitored by laser interferometry; all measurements are made before unloading waves arrive from the periphery. For approximately one microsecond the compressed lubricant is subjected to a simple shearing motion and a continuous record of the shear stress and shear rate is obtained. Results presented for the lubricant 5P4E at pressures of 1-5 GPa and shear rates of approximately 9 × 105 s−1 show good agreement with available data on the dependence of the limiting shear stress on the confining pressure at lower pressures and lower shearing rates.
Skip Nav Destination
Article navigation
April 1987
Research Papers
A Pressure-Shear Plate Impact Experiment for Studying the Rheology of Lubricants at High Pressures and High Shearing Rates
K. T. Ramesh,
K. T. Ramesh
Division of Engineering, Brown University, Providence, R.I. 02912
Search for other works by this author on:
R. J. Clifton
R. J. Clifton
Brown University, Providence, R.I. 02912
Search for other works by this author on:
K. T. Ramesh
Division of Engineering, Brown University, Providence, R.I. 02912
R. J. Clifton
Brown University, Providence, R.I. 02912
J. Tribol. Apr 1987, 109(2): 215-222 (8 pages)
Published Online: April 1, 1987
Article history
Received:
June 1, 1986
Online:
October 29, 2009
Citation
Ramesh, K. T., and Clifton, R. J. (April 1, 1987). "A Pressure-Shear Plate Impact Experiment for Studying the Rheology of Lubricants at High Pressures and High Shearing Rates." ASME. J. Tribol. April 1987; 109(2): 215–222. https://doi.org/10.1115/1.3261341
Download citation file:
Get Email Alerts
Related Articles
The Behavior of an Elastohydrodynamic Lubricant at Moderate Pressures
and High Shear Rates
J. Tribol (January,1996)
Effect of Shear Surface Boundaries on Stress for Shearing Flow of Dry Metal Powders—An Experimental Study
J. Tribol (April,1987)
The Wall Effect in the Flow of Commercial Lubricating Greases
J. Tribol (July,2016)
An Analytical and Computational Investigation of High-Rate
Rheometry
J. Tribol (July,1996)
Related Chapters
Crack(s) in a Rod or a Plate by Energy Rate Analysis
The Stress Analysis of Cracks Handbook, Third Edition
A Laser Interferometry Method for Experimental Stress Intensity Factor Calibration
Cracks and Fracture
Microspecimen Tensile Tests of A533-B Steel
Small Specimen Test Techniques