Determining Forming Limit Diagrams Using Sub-Sized Specimen Geometry and Comparing FLD Evaluation Methods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F21%3AN0000009" target="_blank" >RIV/26316919:_____/21:N0000009 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23210/21:43961664
Result on the web
<a href="https://www.mdpi.com/2075-4701/11/3/484/htm" target="_blank" >https://www.mdpi.com/2075-4701/11/3/484/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met11030484" target="_blank" >10.3390/met11030484</a>
Alternative languages
Result language
angličtina
Original language name
Determining Forming Limit Diagrams Using Sub-Sized Specimen Geometry and Comparing FLD Evaluation Methods
Original language description
Sheet metal forming boundaries are established using the forming limit diagram (FLD). The Nakajima and Marciniak tests, which are based on stretching a material using a punch, are the most commonly used methods for determining the FLD or fracture forming limit diagram (FFLD). The results are usually evaluated by calculating local strain, strain rates, specimen thickness reduction or fracture strain. When the amount of experimental material is insufficient, miniaturization of the testing specimens may be a solution. However, the interchangeability of the results for standard and miniaturized specimens has not been proven yet. In this study, the Nakajima tests were performed using standard and sub-sized specimens made of manganese-boron steel 22MnB5, commonly used in the automotive industry. Afterwards, four FLD/FFLD evaluation methods were applied and compared. The miniaturized specimens yielded higher strain values, which was explained by the varied ratio of material thickness/punch diameter and different bending conditions. The highest compliance of the results was recorded for the standard and miniaturized FFLD.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
METALS
ISSN
2075-4701
e-ISSN
2075-4701
Volume of the periodical
11
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
nestránkováno
UT code for WoS article
000633875600001
EID of the result in the Scopus database
2-s2.0-85102352055