Combined unstructured and hanging-node-based remeshing with boundary control for metal forming simulations

Adaptive 3D Remeshing for Metal Forming Simulation

An alternative remeshing methodology for 3D Abaqus explicit analyses which utilizes mesh mapping is presented. Excessive element distortion in 3D large deformation analyses necessitates remeshing, however in Abaqus explicit, the standard 3D remeshing techniques limits the analyst’s choice of element type. The presented technique allows remeshing of 3D perfectly plastic fully integrated higher o...

Comparison on Remeshing and Mesh Enrichment Based Forming Simulations

Unstructured Remeshing Using an Efficient Smoothing Scheme

Abstract. In this paper, a method for adapting existing 2D and 3D unstructured meshes to modified domain boundaries is presented. The method simultaneously employs mesh smoothing, moving and untangling. It should be considered as an alternative to mesh regeneration often used in either optimization or unsteady flow computations with moving boundaries. With respect to the widely used Laplacian s...

Adaptive unstructured volume remeshing – I: The method

We present an adaptive remeshing algorithm for meshes of unstructured triangles in two dimensions and unstructured tetrahedra in three dimensions. The algorithm automatically adjusts the size of the elements with time and position in the computational domain in order to resolve the relevant scales in multiscale physical systems to a userprescribed accuracy while minimizing computational cost. T...

Boundary Control Systems and the System Node

In this paper we show how to formulate a boundary control system in terms of the system node, that is, as an operator S := [ A&B C&D ] : D(S)→ [Y ] where X is the state space and Y is the output space. Here we give results which show how to find the top part of this operator and its domain in an easy way. For a class of boundary control systems, associated with a skew-symmetric differential ope...