Experimental analysis of crack formation at sheet metal edges
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00372039" target="_blank" >RIV/68407700:21220/23:00372039 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.37904/metal.2023.4694" target="_blank" >https://doi.org/10.37904/metal.2023.4694</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2023.4694" target="_blank" >10.37904/metal.2023.4694</a>
Alternative languages
Result language
angličtina
Original language name
Experimental analysis of crack formation at sheet metal edges
Original language description
During the pressing of sheet metal parts, cracks may form around the holes that weren't predicted by numerical simulations. These cracks are caused by the partial depletion of the forming capacity at the edges of the hole due to the preparation technology used, most often shearing. The aim of this article is to refine the simulation models by introducing boundary conditions to describe this condition. The Hole Expansion Test (HET), described in ISO 16630 and currently the only worldwide standardised method for determining the sensitivity of a material to edge crack formation, is used to determine the limiting deformation at the edge of the material. Materials commonly used in the automotive industry were chosen for the experiment. Holes were made in samples of each material according to ISO 16630 by shearing, laser cutting, and electro-discharge machining. The testing was carried out according to ISO 16630 at room temperature and the specimens were evaluated manually just before failure. The results obtained were evaluated and compared with theoretical premises. By refining simulation models and introducing boundary conditions that account for the depletion of forming capacity at the edges of holes, manufacturers can better predict and prevent the formation of cracks during the pressing of sheet metal parts. This can improve the quality and durability of automotive parts and lead to safer and more reliable vehicles.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Metal 2023
ISBN
978-80-88365-12-9
ISSN
2694-9296
e-ISSN
2694-9296
Number of pages
5
Pages from-to
247-251
Publisher name
TANGER
Place of publication
Ostrava
Event location
Brno
Event date
May 17, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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