Detail publikace

Novel approach to computational simulation of cross roll straightening of bars

PETRUŠKA, J. NÁVRAT, T. ŠEBEK, F.

Originální název

Novel approach to computational simulation of cross roll straightening of bars

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A new finite element formulation, aimed at the modeling of cross roll straightening of circular bars is presented. It is based on Eulerian description of elastoplastic material flow through a stationary finite element mesh, which is fixed in space and coupled with the multi-roller straightening machine. This approach leads to extremely effective computational algorithm which provides the relation between input parameters like curvature, diameter and material of the bar, straightening rollers geometry and intermeshing on one hand and output bar curvature and residual stress distribution on the other. Using this strategy, multiple repetition of the straightening process analysis for variable intermeshing scheme is a feasible task, aimed to optimization of roller intermeshing. Basic features of the algorithm are described, some verification results presented and compared with real experiments realized in industrial conditions. The industry was also a motivation for the optimization study, presented in the last part of paper. The results prove that the suggested solution strategy is a mighty tool for effective analysis of cross roll straightening and show a great potential for other types of straightening processes as well.

Klíčová slova

Cross roll straightening; Finite element analysis; Eulerian material flow; Elastoplastic bending

Autoři

PETRUŠKA, J.; NÁVRAT, T.; ŠEBEK, F.

Vydáno

15. 7. 2016

ISSN

0924-0136

Periodikum

Journal of Materials Processing Technology

Ročník

233

Číslo

7

Stát

Švýcarská konfederace

Strany od

53

Strany do

67

Strany počet

15

BibTex

@article{BUT122552,
  author="Jindřich {Petruška} and Tomáš {Návrat} and František {Šebek}",
  title="Novel approach to computational simulation of cross roll straightening of bars",
  journal="Journal of Materials Processing Technology",
  year="2016",
  volume="233",
  number="7",
  pages="53--67",
  doi="10.1016/j.jmatprotec.2016.02.004",
  issn="0924-0136"
}