Detail publikace
Výpočtová simulace tváření šroubu za studena a predikce poškození materiálu
PETRUŠKA, J. SKALKA, P. JANÍČEK, L. RUSZ, S.
Český název
Výpočtová simulace tváření šroubu za studena a predikce poškození materiálu
Anglický název
Computational simulation of cold forming of bolts and prediction of material damage during the process
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
The paper deals with application of selected criteria of ductile fracture to prediction of material damage during the production of bolts by cold forming. Two basic steps of this procedure are described. First, the fracture criteria para- meters are identi ed by numerical simulation of realized material fracture tests in compression. Second, two main stages of the bolt production (forward extru- sion of shaft and compression of head) are computationally simulated as a large displacement, elasto-plastic problem. The computed history of stress and strain is then used for evaluation of the fracture criteria and compared with the identi- ed limit fracture values of the material. A number of geometrical versions are analysed to evaluate the in uence of shape on the probability of fracture.
Český abstrakt
Příspěvek se zabývá aplikací vybraných kritérií tvárného lomu na predikci poškození materiálu při výrobě šroubů tvářením za studena. Je analyzována řada geometrických variant a vyhodnocen vliv tvaru polotovaru na pravděpodobnost porušení.
Anglický abstrakt
The paper deals with application of selected criteria of ductile fracture to prediction of material damage during the production of bolts by cold forming. Two basic steps of this procedure are described. First, the fracture criteria para- meters are identi ed by numerical simulation of realized material fracture tests in compression. Second, two main stages of the bolt production (forward extru- sion of shaft and compression of head) are computationally simulated as a large displacement, elasto-plastic problem. The computed history of stress and strain is then used for evaluation of the fracture criteria and compared with the identi- ed limit fracture values of the material. A number of geometrical versions are analysed to evaluate the in uence of shape on the probability of fracture.
Klíčová slova anglicky
FE simulation, bulk forming, formability
Rok RIV
2004
Vydáno
10.05.2004
Nakladatel
Ústav termomechaniky AV ČR
Místo
Svratka
ISBN
80-85918-88-9
Kniha
Engineering mechanics 2004
Počet stran
7
BIBTEX
@inproceedings{BUT17029,
author="Jindřich {Petruška} and Petr {Skalka} and Libor {Janíček} and Stanislav {Rusz},
title="Computational simulation of cold forming of bolts and prediction of material damage during the process",
booktitle="Engineering mechanics 2004",
year="2004",
month="May",
publisher="Ústav termomechaniky AV ČR",
address="Svratka",
isbn="80-85918-88-9"
}