Assessment of Friction Force between a PDMS Pillar and a Flat Glass Substrate

Abstract

The friction force between a polydimethylsiloxane (PDMS) pillar in contact with a flat glass substrate is examined. The friction between the pillar and the glass is achieved with lateral loading of the glass under constant velocity. The friction force during the lateral motion is estimated by modelling the motion of the pillar as a lumped parameter system. The parameters of the lumped system are presented as equivalent mass, stiffness and damping components with addition of the contact interaction. Validation of the model is accumulated with experiments and the relative error between the analytical and experimental results is around %10.