Three-dimensional Finite Element Modelling of the Cylindrical Specimen Upsetting

Mikhail V Murashov,Andrey V Vlasov,V.V Koryanov,M Polyakova,H Yuan

doi:10.1051/matecconf/201822004008

Mikhail V Murashov, Andrey V Vlasov + Show 3 more

Open Access

https://doi.org/10.1051/matecconf/201822004008

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Abstract

Friction has a substantial influence on the metal forming at upsetting of cylindrical aluminum specimens. The finite element method is often used to investigate this problem. This paper aims to reveal possible numerical errors and obstacles related to the 3D finite element solution of the problem. The calculation results for the proposed numerical 3D-model are compared with the experimental data. The influence of friction is demonstrated and a good agreement on the tool displacement is obtained. The features of the numerical solution of the problem in the ANSYS finite element software are shown.

Highlights

The friction coefficient has a significant effect on the metal forming of parts, in which the simplest problem is the upsetting of a cylindrical specimen
The finite element method is widely used for the calculation of elastoplastic deformation of parts, including for the upsetting problem
The purpose of this paper is to investigate the errors in the numerical 3D modeling of upsetting of an aluminum cylindrical specimen according to the stressstrain curve determined from the experiment

Summary

Introduction

The friction coefficient has a significant effect on the metal forming of parts, in which the simplest problem is the upsetting of a cylindrical specimen. The finite element method is widely used for the calculation of elastoplastic deformation of parts, including for the upsetting problem. Numerical simulation of deformation, performed after finding friction coefficient and stress-strain curve from such an experiment, can cause specific difficulties. The purpose of this paper is to investigate the errors in the numerical 3D modeling of upsetting of an aluminum cylindrical specimen according to the stressstrain curve determined from the experiment. The comparison of the upsetting experiment data with the data of numerical modeling confirms a possibility of ANSYS to calculate the elastic-plastic deformation at large strains. The strains distribution in the section of the deformed sample was obtained

The model description

Discussing the results

Findings

Conclusion