A Mathematical Technique for Comparing Shear Stability in Bench Tests and Service
770633
02/01/1977
- Event
- Content
- Viscosity decrease as a function of the duration of mechanical shearing is described by a mathematical model. Applicability of the model to several different types of service is demonstrated. For automobile engine oil service that shows a viscosity decrease initially, followed by a gradual viscosity increase, the model offers a means of separating the viscosity decrease term from the total viscosity change. The model provides a rational method of comparing shearing in bench tests with shearing in service. It also offers a means for detailed comparisons of the shear stability of different lubricants in a given service.
- Pages
- 12
- Citation
- Rein, S., Randall, N., Marshall, H., and Lewis, B., "A Mathematical Technique for Comparing Shear Stability in Bench Tests and Service," SAE Technical Paper 770633, 1977, https://doi.org/10.4271/770633.