Publication detail

Porovnání modelů tvárného porušování při tlakovém charakteru zatěžování

BOŘKOVEC, J. PETRUŠKA, J.

Original Title

Porovnání modelů tvárného porušování při tlakovém charakteru zatěžování

English Title

Comparison of Ductile Fracture Criteria in case of Compressive Loading Conditions

Type

conference paper

Language

Czech

Original Abstract

A portion of the components produced in big series increases recently, for that reason it is more important to optimize single production process. Development of computer hardware as well as explicit finite element method (FEM) software allowed to simulate production operations, where the material fracture has to be included (cutting, trimming, drilling, machining). The characteristic feature of these processes is that the loading is compressive. In these conditions many of ductile fracture criteria fails. In this paper some selected criteria were investigated. Some of them were programmed as user-defined material models in the FEM program PAMCRASH, which was used for all calculations. The successfulness of every model was evaluated by a comparison of the results of the numerical simulation and the experiment of production operation bold head trimming.

English abstract

A portion of the components produced in big series increases recently, for that reason it is more important to optimize single production process. Development of computer hardware as well as explicit finite element method (FEM) software allowed to simulate production operations, where the material fracture has to be included (cutting, trimming, drilling, machining). The characteristic feature of these processes is that the loading is compressive. In these conditions many of ductile fracture criteria fails. In this paper some selected criteria were investigated. Some of them were programmed as user-defined material models in the FEM program PAMCRASH, which was used for all calculations. The successfulness of every model was evaluated by a comparison of the results of the numerical simulation and the experiment of production operation bold head trimming.

Keywords

Ductile fracture criterion, compressive loading, element elimination

Key words in English

Ductile fracture criterion, compressive loading, element elimination

Authors

BOŘKOVEC, J.; PETRUŠKA, J.

RIV year

2007

Released

16. 4. 2007

Publisher

VŠB - Technická univerzita Ostrava

Location

Ostrava

ISBN

978-80-248-1389-9

Book

Applied Mechanics 2007

Edition number

1

Pages from

37

Pages to

38

Pages count

2

BibTex

@inproceedings{BUT22604,
  author="Jan {Bořkovec} and Jindřich {Petruška}",
  title="Porovnání modelů tvárného porušování při tlakovém charakteru zatěžování",
  booktitle="Applied Mechanics 2007",
  year="2007",
  number="1",
  pages="37--38",
  publisher="VŠB - Technická univerzita Ostrava",
  address="Ostrava",
  isbn="978-80-248-1389-9"
}