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Statements

Subject Item
n2:RIV%2F68378297%3A_____%2F13%3A00398787%21RIV14-GA0-68378297
rdf:type
n8:Vysledek skos:Concept
dcterms:description
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. 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.
dcterms:title
Detection of microplastic limit in a structural steel by the measurement of electrical impendance Detection of microplastic limit in a structural steel by the measurement of electrical impendance
skos:prefLabel
Detection of microplastic limit in a structural steel by the measurement of electrical impendance Detection of microplastic limit in a structural steel by the measurement of electrical impendance
skos:notation
RIV/68378297:_____/13:00398787!RIV14-GA0-68378297
n8:predkladatel
n20:ico%3A68378297
n3:aktivita
n4:P n4:I
n3:aktivity
I, P(GAP105/10/2052)
n3:dodaniDat
n16:2014
n3:domaciTvurceVysledku
n6:9262032 n6:6098738
n3:druhVysledku
n14:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
68735
n3:idVysledku
RIV/68378297:_____/13:00398787
n3:jazykVysledku
n10:eng
n3:klicovaSlova
low-C steel; magnetic permeability; microplastic limit
n3:klicoveSlovo
n17:microplastic%20limit n17:magnetic%20permeability n17:low-C%20steel
n3:kontrolniKodProRIV
[7D682EFB6CEC]
n3:mistoKonaniAkce
Amsterdam
n3:mistoVydani
Amsterdam
n3:nazevZdroje
World academy of science, engineering and technology
n3:obor
n15:JL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n11:GAP105%2F10%2F2052
n3:rokUplatneniVysledku
n16:2013
n3:tvurceVysledku
Gajdoš, Lubomír Mentl, V. Volák, J. Šperl, Martin Kaiser, J.
n3:typAkce
n5:WRD
n3:zahajeniAkce
2013-05-15+02:00
s:issn
2010-376X
s:numberOfPages
4
n18:hasPublisher
World Academy of Science, Engineering and Technology