A Reduced Elastic Friction Model For Complicated Surfaces
Author(s)
J. Jager
Abstract
A reduced elastic friction model for complicated
surfaces
J . Jager,
Lauterbach Verfahrenstechnik, Germany
Abstract
Some properties of a reduced friction model for general elastic bodies in contact
are outlined and compared with numerical examples for difficult contact areas,
which can not be solved analytically. Under consideration of the necessary
assumptions by Jager (2000), the tangential friction problem and all associated
inequalities can be reduced to the normal contact problem. The tangential solution
results as the difference of the full slip traction for actual contact and a smaller
contact area, which represents the stick area (or multiple areas). The local traction
in the slip area opposes the relative motion in the same way as the normal relative
approach opposes the contact pressure, as required by Coulomb's slip inequality.
The stick inequality for the traction is identical with the contact condition of
positive pressure. Several applications for thin layers, half-spaces and impa
Keywords
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