Computational prediction of chevron cracking during multi-pass cold forward extrusion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU148919" target="_blank" >RIV/00216305:26210/23:PU148919 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1526612523007089" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1526612523007089</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmapro.2023.07.025" target="_blank" >10.1016/j.jmapro.2023.07.025</a>

Result language
angličtina
Original language name
Computational prediction of chevron cracking during multi-pass cold forward extrusion
Original language description
The cold forward extrusion is a manufacturing process that is widespread in automated production due to its economic benefits. The cross-section is reduced during this process, which is accompanied by large plastic deformations. It may lead to the chevron cracking, which has to be predicted for flawless production and maintaining economic advantage. Therefore, the multi-pass cold forward extrusion of cylinder made from AISI 1045 was numerically simulated. The central cracks were predicted by the recently proposed uncoupled ductile fracture criteria. These were calibrated using various experiments, including the small punch test with additional fractographic observation. The material model was implemented into Abaqus using the user subroutine so that defects were successfully predicted using an element deletion technique.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21100 - Other engineering and technologies

Project
<a href="/en/project/GA23-04724S" target="_blank" >GA23-04724S: Computational modelling of ductile fracture of identical wrought and printed metallic materials under ultra-low-cycle fatigue</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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