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https://doi.org/10.1063/1.3589...
Article . 2011 . Peer-reviewed
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A Voronoi-Based Nodal Integrated FEM Simulation of Extrusion Process

Authors: Greco, F.; Gagliardi, F.; Filice, L.; CABEZAS GONZALEZ, Diana Alexandra; Alfaro, I.; Cueto, E.;

A Voronoi-Based Nodal Integrated FEM Simulation of Extrusion Process

Abstract

The finite element method was successfully applied for the simulation of several forming processes. However, it does not represent an absolute reference point because of the high transformations in the computational domain in some real processes. These induce a significant worsening of the results caused by the mesh distortions. The use of remeshing techniques both increases the computational time and the additional errors. Nodal integration is a technique that introduces an improvement of the convergence when applied to constant strain elements. Thus, it enhances the behavior in the acute bending problems and reduces the volumetric locking phenomenon. The main point of strength of the proposed approach is to allow FEM to provide reliable results also with distorted meshes. Consequently, constant strain elements are competitive also if compared to high‐order elements since remeshing step can be avoided. In the paper some fundamental aspects of the proposed method are presented; subsequently, the results of the simulation of a representative forming process are compared to the ones obtained by means of a robust commercial FEM code, assumed as reference in the analysis.

Country
Italy
Keywords

Extrusion; FEM simulation; Nodal integration; Physics and Astronomy (all)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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