In this paper we investigate an early and yet simple model used for the analysis of
mechanical systems incorporating Coulomb-type friction. We show an interesting non-smooth
bifurcation of the crossing-sliding type that causes symmetry breaking. In its simplicity
it was not obvious for a long time to find chaos in the simple one degree-of-freedom
sliding block model with dry-friction. With the introduction of static coefficient
of friction besides the dynamic one we found chaotic bands over a wide range of parameters.
In this work we also highlight the possibility of transient chaos for a narrow range
of parameters. (C) 2013 IMACS. Published by Elsevier B.V. All rights reserved.