Contact area between a viscoelastic solid and a hard, randomly rough, substrate

J Chem Phys. 2004 May 8;120(18):8779-93. doi: 10.1063/1.1697376.

Abstract

We study the time-dependent contact area as a viscoelastic solid is squeezed against a randomly rough substrate. Using a recently developed contact mechanics theory we study how the contact area depends on time and on the magnification zeta. Numerical results are presented for self-affine fractal surfaces, and applications to tack, rubber friction, and sealing are given.