Surface Temperatures and Glassy State Investigations in Tribology. Part 3.
Abstract
The research reported covers the continued development of the limiting shear stress shear rheological model. This development consists of both property measurements pursuant to the use of the constitutive equation and the application of the constitutive equation to ERD traction and flim thickness predictions. It has been shown that the history the material undergoes influences the limiting shear stress. Previously materials were subjected to isobaric cooling. Techniques were developed to subject materials to isothermal compression which is similar to what occurs in ERD contacts. The limiting shear stress from the isothermal compression is approximately 10 percent less than that from isobaric cooling. This more relevant determination of limiting shear stress and elastic shear modulus is reported for several lubricants. In addition, an apparatus has also been developed for measuring the shear stress-strain behavior of solid lubricating materials. Four materials have been examined under pressure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1980
- Accession Number
- ADA302714
Entities
People
- Scott S. Bair
- Ward O. Winer
Organizations
- Georgia Tech