Effect of tensile test specimen size on ductility of R7T steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F13%3A86092035" target="_blank" >RIV/61989100:27690/13:86092035 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of tensile test specimen size on ductility of R7T steel
Original language description
The size and shape of test specimens, their microstructure and non-homogeneity, significantly influence the strength properties and plasticity of tested steels. Efforts to characterize small-scale tensile properties are driven by the need to reliably predict the performance of engineering parts during service. In this study it is clearly demonstrated that the tensile properties of the tested R7T steel depend on specimen size. Both the yield s tress and ultimate tensile strength of cylindrical tested specimens with diameter between 2 and 10 mm and plate specimens with thickness of 1 to 5 mm are independent of size. The results show that the uniform elongation is independent of specimen size but post-necking elongation increases dramatically as specimensize increases. This is caused by localized stress distribution in the neck region. The stress localization around the neck was characterized by means of the Weibull stress, which is a measure of material resistance against hardening and
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]
ISBN
978-80-87294-41-3
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
560-566
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 15, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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