The influence of liquid bridge on body contact with a hydrophobic periodically textured rigid base

Keywords

contact interaction, rectangular grooves, interface gaps, liquid bridges, contact approach of the bodies.

Cite as

Kozachok О. P. The influence of liquid bridge on body contact with a hydrophobic periodically textured rigid base. Physicochemical Mechanics of Materials. 2023. 59(5), 83-88.

https://doi.org/10.15407/pcmm2023.05.083

Abstract

The frictionless contact of an elastic half-space and a rigid base textured with rectangular grooves in the presence of an incompressible liquid which does not wet the body surface in the interface gaps was studied. Under the action of surface tension, the liquid forms bridges at the edges of the gaps, and the middle parts contain gas under constant pressure. Laplace formula describes the differential pressure in liquid and gas. The formulated contact problem for an elastic half-space was reduced to a singular integral equation with a Hilbert kernel relative to the derivative of the gap height and a transcendental equation for determining the width of the area with gas. The dependences of the area width with gas, the gap shape, and the contact approach of the bodies on the applied load, liquid volume, and its surface tension were analyzed.

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