Non-linear elasticity of a liquid contact lineA. Checco
Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory Upton, NY 11973, USA
received 21 October 2008; accepted in final form 5 December 2008; published January 2009
published online 19 January 2009
By using energy minimization computations we study the distortion of a wetting contact line pinned on a single defect. We find that the elastic restoring force of the line depends non-linearly on the amplitude of the distortion and we estimate the anharmonic corrections to the linear elastic model. These results suggest the importance of non-linear effects in the problem of contact line pinning.
68.08.Bc - Wetting.
68.03.Cd - Surface tension and related phenomena.
© EPLA 2009