Influence of loading speed on yield strength value of S235 and C45 steels

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of loading speed on yield strength value of S235 and C45 steels

Popis výsledku v původním jazyce

The aim of the paper is to evaluate the dependency of the yield strength of steels S235 and C45 on loading speed. In order to quantify this phenomenon, static and dynamical tension tests of both steels were realized and evaluated. Static tension tests realized on flat specimen confirmed values of yield strength under static loading given my material sheets of both steels. Dynamical testing has shown different behavior of steels under increased loading speeds. While the steel S235 has shown a significant growth of yield strength with the increased loading speed in the interval from 0 m/s till 3 m/s, the steel C45 has shown this ability in the interval from 0 m/s till 1 m/s only and the subsequent growth of yield strength has been very slow. In order to quantify the strain distribution in the specimen during dynamical tests using digital image correlation method, experiments were recorded using high-speed camera as well. Unfortunately, none of the results could be used since the colour applied on the surface of the specimen was eroded from the surface due to its fast deformation. (C) Experimental Stress Analysis - 57th International Scientific Conference, EAN 2019 - Conference Proceedings. All rights reserved.

Název v anglickém jazyce

Influence of loading speed on yield strength value of S235 and C45 steels

Popis výsledku anglicky

The aim of the paper is to evaluate the dependency of the yield strength of steels S235 and C45 on loading speed. In order to quantify this phenomenon, static and dynamical tension tests of both steels were realized and evaluated. Static tension tests realized on flat specimen confirmed values of yield strength under static loading given my material sheets of both steels. Dynamical testing has shown different behavior of steels under increased loading speeds. While the steel S235 has shown a significant growth of yield strength with the increased loading speed in the interval from 0 m/s till 3 m/s, the steel C45 has shown this ability in the interval from 0 m/s till 1 m/s only and the subsequent growth of yield strength has been very slow. In order to quantify the strain distribution in the specimen during dynamical tests using digital image correlation method, experiments were recorded using high-speed camera as well. Unfortunately, none of the results could be used since the colour applied on the surface of the specimen was eroded from the surface due to its fast deformation. (C) Experimental Stress Analysis - 57th International Scientific Conference, EAN 2019 - Conference Proceedings. All rights reserved.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Experimental Stress Analysis - 57th International Scientific Conference, EAN 2019 - Conference Proceedings

ISBN

978-80-214-5766-9

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

102-105

Název nakladatele

Czech Society for Mechanics

Místo vydání

Praha

Místo konání akce

Luhačovice

Datum konání akce

3. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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