The possibility of evaluating the yield strength through indentation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F15%3A39900402" target="_blank" >RIV/00216275:25510/15:39900402 - 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

The possibility of evaluating the yield strength through indentation

Popis výsledku v původním jazyce

The subject of the research is study of an elastic-plastic behavior of the materials, S355N steel and Domex700MC steel, which are used in welded construction parts of car bodies, the Domex700MC steel is used with the intention of decreasing the weight of the parts. The solved problem is to determine the local static parameters of the steels without the possibility to use the standard mechanical testing. In order to assess the strength decrease, the critical area was experimentally simulated. The main aim of the paper is to ascertain strength differences in the heat affected areas originating as a result of welding. As the main tool for the assessment of the elastic-plastic response, the methodology based on an instrumented penetration test with the use of a cylindrical indenter was chosen. For validation of the used method, the standard tensile test was performed. The aim of the work is to state optimal methods for determining a yield strength and to find a changes tendency in these areas. The comparison these steels revealed different changes due to welding process. The substantial decrease of the yield strength of Domex700MC was observed, on contrary to a stable, or partially increased, yield strength of the S355N steel. Structural analyses revealed a different material response of the evaluated steels, according to a different hardness in the heat affected zone.

Název v anglickém jazyce

The possibility of evaluating the yield strength through indentation

Popis výsledku anglicky

The subject of the research is study of an elastic-plastic behavior of the materials, S355N steel and Domex700MC steel, which are used in welded construction parts of car bodies, the Domex700MC steel is used with the intention of decreasing the weight of the parts. The solved problem is to determine the local static parameters of the steels without the possibility to use the standard mechanical testing. In order to assess the strength decrease, the critical area was experimentally simulated. The main aim of the paper is to ascertain strength differences in the heat affected areas originating as a result of welding. As the main tool for the assessment of the elastic-plastic response, the methodology based on an instrumented penetration test with the use of a cylindrical indenter was chosen. For validation of the used method, the standard tensile test was performed. The aim of the work is to state optimal methods for determining a yield strength and to find a changes tendency in these areas. The comparison these steels revealed different changes due to welding process. The substantial decrease of the yield strength of Domex700MC was observed, on contrary to a stable, or partially increased, yield strength of the S355N steel. Structural analyses revealed a different material response of the evaluated steels, according to a different hardness in the heat affected zone.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020038" target="_blank" >TE01020038: Centrum kompetence drážních vozidel</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2015: 24th International Conference on Metallurgy and Materials

ISBN

978-80-87294-62-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

476-481

Název nakladatele

TANGER, spol. s r.o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

3. 6. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000374706100073