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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

  • DOI - Digital Object Identifier

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

Result continuities

  • Project

  • 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

  • e-ISSN

  • 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