ARBITRARY LAGRANGIAN-EULERIAN FINITE-ELEMENT ANALYSIS OF LARGE DEFORMATION IN CONTACTING BODIES

The primary aim of this research is to implement the arbitrary Lagrangian-Eulerian finite element description to model large deformation of interacting bodies. A pure Lagrangian description is often incapable of representing their contact with sufficient precision. In this work, the arbitrary Lagrangian-Eulerian (ALE) description has been extended to the surface nodes of interacting bodies to overcome these limitations. A penalty formulation has been implemented to account for the impenetrability constraint. The materials have been characterized as elastic-viscoplastic. Implicit integration schemes have been used at the global and constitutive levels for improved stability.