Statistical laws of stick-slip friction at mesoscale.

ABSTRACT: Friction between two rough solid surfaces often involves local stick-slip events occurring at different locations of the contact interface. If the apparent contact area is large, multiple local slips may take place simultaneously and the total frictional force is a sum of the pinning forces imposed by many asperities on the interface. Here, we report a systematic study of stick-slip friction over a mesoscale contact area using a hanging-beam lateral atomic-force-microscope, which is capable of resolving frictional force fluctuations generated by individual slip events and measuring their statistical properties at the single-slip resolution. The measured probability density functions (PDFs) of the slip length δx_s, the maximal force F_c needed to trigger the local slips,

SUBMITTER: Yan C 

PROVIDER: S-EPMC10556047 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature