Effect of Indentation Depth on Friction Coefficient in Adhesive Contacts: Experiment and Simulation.

ABSTRACT: The quasi-static regime of friction between a rigid steel indenter and a soft elastomer with high adhesion is studied experimentally. An analysis of the formally calculated dependencies of a friction coefficient on an external load (normal force) shows that the friction coefficient monotonically decreases with an increase in the load, following a power law relationship. Over the entire range of contact loads, a friction mode is realized in which constant shear stresses are maintained in the tangential contact, which corresponds to the "adhesive" friction mode. In this mode, Amonton's law is inapplicable, and the friction coefficient loses its original meaning. Some classical works, which show the existence of a transition between "adhesive" and "normal" friction, were analyzed. It is shown

SUBMITTER: Lyashenko IA 

PROVIDER: S-EPMC10813419 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature