Uso de una Formulação Lagrangeana-Euleriana na Solução de Problemas de Conformação Mecânica Tridimensional

Abstract

In the present work an algorithm to avoid mesh distortion in finite element (FE) analyses of large deformation problems is presented. These distortion problems
usually occur when using Updated-Lagrangian (UL) formulations, where the mesh flows together with the material. In this work, mesh and material displacements are
uncoupled by using a Lagrangian-Eulerian (LE) formulation. The presentation of a three-dimensional (3D) extension of this formulation applied to a metal-forming
case is the new contribuition in this work.