Computational simulation of cold forming of bolts and prediction of material damage during the process
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F04%3APU47480" target="_blank" >RIV/00216305:26210/04:PU47480 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Computational simulation of cold forming of bolts and prediction of material damage during the process
Original language description
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 identified 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-pllastic problem. The computed history of stress and strain is then used for evaluation of the fracture criteria and compared with the identi- fied limit fracture values of the material. A number of geometrical versions are analysed to evaluate the in uence ofshape on the probability of fracture.
Czech name
Výpočtová simulace tváření šroubu za studena a predikce poškození materiálu
Czech description
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.
Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering mechanics 2004
ISBN
80-85918-88-9
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
235-241
Publisher name
Ústav termomechaniky AV ČR
Place of publication
Svratka
Event location
Svratka
Event date
May 10, 2004
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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