Influence of curvature radius, elastic modulus, and contact velocity on real contact formation between rubber hemisphere and glass plate during contact process under a water-lubricated condition

摘要

Especially for performance in wet conditions, design of real contact formation is important to improve grip properties of footwear outer-soles and vehicle tires. Lubricant intervention between rubber and a surface is expected to be changed by the contact velocity and physical properties of the rubber radius of curvature and elastic modulus. The influences of these parameters on real contact formation between a rubber hemisphere and glass plate in a contact process under a water-lubricated condition were investigated. The ratio between real and apparent contact areas increased with contact time as determined by these parameters. The explanation is based on dewetting behavior.