#### Contact mechanics challenge announcement

We call for a modeling competition in contact mechanics and invite theorists and modelers alike to make predictions on a mathematically well-defined problem. **New deadline: June 30, 2016.**

The problem can be specified as follows:

- linear elasticity and small-slope approximation

- short range adhesion

- self-affine rough surface, topography provided numerically in real space and in Fourier space.

Participants are asked to make predictions that we can test by solving the problem numerically. You can participate by sending your predictions in a PDF by e-mail. For more details…