Energy-momentum schemes for large deformation contact problems |
| |
Authors: | Christian Hesch P. Betsch |
| |
Affiliation: | Universität Siegen, Paul-Bonatz-Str. 9-11, 57068 Siegen, Germany |
| |
Abstract: | Dynamic contact problems in elasticity are dealt with in the framework of nonlinear finite element methods. A new energymomentum conserving time-stepping scheme for the mortar contact formulation is presented. The proposed method relies on a reparametrization of the contact constraints in terms of specific invariants. For the time discretisation of the contact forces emanating from the mortar formulation the notion of a discrete gradient is applied. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| |
Keywords: | |
|
|