Detail publikačního výsledku

Numerical modelling of straightening process

PETRUŠKA, J.; NÁVRAT, T.

Originální název

Numerical modelling of straightening process

Anglický název

Numerical modelling of straightening process

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The process of cross roll straightening of circular bars is simulated using FEM and Eulerian scheme of material flow through the machine. Initially curved bar rotates along its axis as it progresses through laterally staggered rolls, being loaded by a fluctuating bending moment beyond its elastic limit. Special program was developed , based on a beam-type finite element, Eulerian scheme of material flow along the straightened bar and nonlinear iterative solution of the elasto-plastic material behavior. Adopted strategy of Eulerian description makes the direct solution of the problem very efficient. Basic process characteristics like roller loading, product deflection, curvature and plasticization can be thus obtained very quickly from input data. It makes possible to find necessary intermeshing of rollers for given input data as a result of an iterative optimization process. Examples of this procedure together with developed algorithm are presented and discussed in the paper.

Anglický abstrakt

The process of cross roll straightening of circular bars is simulated using FEM and Eulerian scheme of material flow through the machine. Initially curved bar rotates along its axis as it progresses through laterally staggered rolls, being loaded by a fluctuating bending moment beyond its elastic limit. Special program was developed , based on a beam-type finite element, Eulerian scheme of material flow along the straightened bar and nonlinear iterative solution of the elasto-plastic material behavior. Adopted strategy of Eulerian description makes the direct solution of the problem very efficient. Basic process characteristics like roller loading, product deflection, curvature and plasticization can be thus obtained very quickly from input data. It makes possible to find necessary intermeshing of rollers for given input data as a result of an iterative optimization process. Examples of this procedure together with developed algorithm are presented and discussed in the paper.

Klíčová slova

cross roll straightening; FEM; plastic bending

Klíčová slova v angličtině

cross roll straightening; FEM; plastic bending

Autoři

PETRUŠKA, J.; NÁVRAT, T.

Vydáno

02.06.2014

ISSN

0867-2628

Periodikum

Metal Forming

Svazek

XXV

Číslo

1

Stát

Polská republika

Strany od

39

Strany do

51

Strany počet

13

BibTex

@article{BUT107803,
  author="Jindřich {Petruška} and Tomáš {Návrat}",
  title="Numerical modelling of straightening process",
  journal="Metal Forming",
  year="2014",
  volume="XXV",
  number="1",
  pages="39--51",
  issn="0867-2628"
}