Some test examples of 2D and 3D contact problems involving coulomb friction and large slip

In this paper, we propose three test examples of two- and three-dimensional contact problems with Coulomb friction and large slip. These examples are: 1. e contact between a 2D elastic slab and a rigid plate, e contact between two semicircular rings, and e contact between a 3D elastic block and a rigid surface. inite element method is used for spatial discretization of solids and the frictional contact problems are modeled by means of the bipotential approach. Numerical results of all test examples are reported as detailed as possible for eventual comparison with other methods.