Adaptive Remeshing of Composite Fabrics During the Forming Process

Abstract

Continuous fibre reinforced composites are now firmly established engineering materials for manufacturing of components in automotive and aerospace industries. In this study, we propose a new approach to simulate the deformation of composite fabrics. A bi-component finite element based on an association of 3D membrane finite elements and truss finite elements is used to represent warp and weft fibres behaviour. During the simulations of the forming process, severe shear of fibres occurs due to the large displacements. It is then necessary to remesh the part to carry out the finite element analysis. This paper presents the remeshing method allowing refining and coarsening the mesh of the composite structure subjected to large displacement.

Influence of the Adaptive Remeshing during Simulations of Sheet Metal Forming Processes

“…The adaptive remeshing of the part with respect to the physical and the geometrical size maps is realized with the RAFF3D adaptive mesher, based on refinement and coarsening techniques. During the adaptive remeshing, two different steps (described in details in [4][5][6]) are realized:…”

“…An adaptive remeshing of the part is worked out. The physical fields are transferred from the old to the new mesh and the next loading step is worked out using ABAQUS solver [3,4].…”