Effect of tensile test specimen size on ductility of R7T steel

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of tensile test specimen size on ductility of R7T steel

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Effect of tensile test specimen size on ductility of R7T steel

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

7

Strana od-do

560-566

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

15. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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