Catálogo de publicaciones - libros

In FEM analysis of rolling contact problems Arbitrary Lagrangian-Eulerian (ALE) methods are the state of the art. These methods allow mesh refinements concentrated to the contact region and offer a time independent formulation of stationary elastic rolling. In the case of inelastic material behavior history dependent constitutive equations contain convective terms in this description. The treatment of these convective terms is performed by a time-discontinuous Galerkin (TDG) method. For the demonstration of the practicability of the developped algorithms a viscoelastic computation of a typical tire model is discussed.

A new implementation of the mortar method is proposed to solve 2D contact problems. The size of the contact zone can be varied continuously by means of the definition of an intermediate contact surface. It has been proved that this is equivalent to using special shape functions for the interpolation of the contact pressure. A formulation is proposed to find the correct size of the contact zone that minimizes the lack of smoothness of the contact pressure.