Detection of microplastic limit in a structural steel by the measurement of electrical impendance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F13%3A00398787" target="_blank" >RIV/68378297:_____/13:00398787 - 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

Detection of microplastic limit in a structural steel by the measurement of electrical impendance

Popis výsledku v původním jazyce

Microplastic strains occurring at stresses below yield stress play a significant role at cyclic loading of metals during high cycle fatigue. Microplastic strains cannot be measured by common methods due to the discontinuity of their distribution and a varying character of their level in the structure of metal but, however, owing to the magneto-elastic effect the threshold stress, at which dislocation pile-up stresses begin to obstruct the magnetic domains in rotation to the direction of the tensile stress, can be determined from magnetic permeability changes during tensile loading. In this paper, the magnetic permeability changes were measured indirectly ? by means of electrical impedance changes (a.c. resistance), as there is a direct functional dependence between the a.c. resistance and the magnetic permeability.

Název v anglickém jazyce

Detection of microplastic limit in a structural steel by the measurement of electrical impendance

Popis výsledku anglicky

Microplastic strains occurring at stresses below yield stress play a significant role at cyclic loading of metals during high cycle fatigue. Microplastic strains cannot be measured by common methods due to the discontinuity of their distribution and a varying character of their level in the structure of metal but, however, owing to the magneto-elastic effect the threshold stress, at which dislocation pile-up stresses begin to obstruct the magnetic domains in rotation to the direction of the tensile stress, can be determined from magnetic permeability changes during tensile loading. In this paper, the magnetic permeability changes were measured indirectly ? by means of electrical impedance changes (a.c. resistance), as there is a direct functional dependence between the a.c. resistance and the magnetic permeability.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP105%2F10%2F2052" target="_blank" >GAP105/10/2052: Poškozující napětí pod mezí únavy určená změnami magnetické permeability</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

World academy of science, engineering and technology

ISBN

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ISSN

2010-376X

e-ISSN

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Počet stran výsledku

4

Strana od-do

779-782

Název nakladatele

World Academy of Science, Engineering and Technology

Místo vydání

Amsterdam

Místo konání akce

Amsterdam

Datum konání akce

15. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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