Publication detail
Comparison of Ductile Fracture Criteria in case of Compressive Loading Conditions
BOŘKOVEC, J. PETRUŠKA, J.
Czech 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
cs
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.
Czech 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 in Czech
Ductile fracture criterion, compressive loading, element elimination
Keywords in English
Ductile fracture criterion, compressive loading, element elimination
RIV year
2007
Released
16.04.2007
Publisher
VŠB - Technická univerzita Ostrava
Location
Ostrava
ISBN
978-80-248-1389-9
Book
Applied Mechanics 2007
Edition number
1
Pages from–to
37–38
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",
month="April",
pages="37--38",
publisher="VŠB - Technická univerzita Ostrava",
address="Ostrava",
isbn="978-80-248-1389-9"
}