A new one-pass approach for large deformation multibody frictional contact analysis

Abstract

SUMMARYIn the context of large deformation analysis for metal forming processes a new one-pass approach for the frictional contact is proposed. This approach eliminates the short comings of traditional one-pass and twopass approaches both from the constraint requirement and solution convergence points of view. Implemented in an updated Lagrangian framework with the Perturbed Lagrangian formulation of Ju and Taylor for non-linear frictional contact, a patch test and typical examples have been worked out to prove the validity of the proposed approach. It is observed that a finer surface discretization of the slave and master surfaces is no longer needed to enforce contact constraint.

Complementarity methods for multibody friction contact problems in finite deformations

“…As noted by Laursen [15] and Zavarise and Wriggers [16], with methods of this kind one loses the physical interpretation of the traction forces to be evaluated at each contact node. Pavanachand and Krishnakumar [17] have furthermore observed that there exist some geometric conditions under which some two-pass algorithms fails to converge.…”