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

摘要

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 delta.Numerical results are presented for self-affine fractal surfaces,and applications to tack,rubber friction,and sealing are given.