Voltage induced friction in a contact of a finger and a touchscreen with a thin dielectric coating

2018/05/22 by Valentin L. Popov, Popov, Valentin L., Markus Heß +1
Engineering · Physics and Astronomy · #Adhesion, Friction, and Surface Interactions #Electrical Contact Performance and Analysis #FOS: Physical sciences #Force Microscopy Techniques and Applications #Soft Condensed Matter (cond-mat.soft)

paper · pdf · doi:10.48550/arxiv.1805.08714

openalex publication_date 2018/05/22 · openalex created_date 2018/06/01 · openalex updated_date 2026/07/28

Abstract

We show that application of voltage between two electrically conducting bodies separated by a thin dielectric layer is equivalent to an adhesive contact with an effective separation energy depending quadratically on the applied stress. Under assumption of Coulomb friction in the contact interface, a closed form equation for the friction force is derived.

Citations

• Surface energy and the contact of elastic solids

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