Transition from Cassie to Wenzel state in patterned soft elastomer sliding contacts

Abstract

In this paper, we presented an experimental and theoretical analysis of the formation of the contact between a smooth elastomer lens and an elastomer substrate micropatterned with hexagonal arrays of cylindrical pillars. We show using a JKR model coupled with a full description of the deformation of the substrate between the pillars that the transition between the top to the full contact is obtain when the normal load is increased above a well predicted threshold. We have also shown that above the onset of full contact, the evolution of the area of full contact was obeying a simple scaling.

4 pages, 6 figures. Submitted

References in corpus (1)

• Experimental evidence of non-Amontons behaviour at a multicontact interface

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