About: The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Iniciace lomu je u perlitických ocelí výrazně ovlivněna Lüdersovou deformací a vyššími pevnostními vlastnostmi. U lomově mechanických charakteristik zjištěných z PC a CT těles se v oblasti mezi 60 a 90 MPam1/2 objevuje absence dat způsobená tvorbou plastického kloubu. Průběh maximálního hlavního napětí před čelem trhliny u PC vzorků zatěžovaných do elastoplastické oblasti je shodný s průběhem referenčního pole pro podmínky malých plastických deformací (SSY). Na základě 3D výpočtů metodou konečných prvků bylo zjištěno, že u PC vzorků nedochází pro sledovanou ocel ke ztrátě constraintu (cs) In pearlitic steels the fracture initiation of pre-cracked specimens is strongly affected by Lüders’ flow and higher strength properties. There is a gap in fracture toughness data of pre-cracked Charpy (PC) and compact tension (CT) specimens between 60 and 90 MPam1/2 due to plastic hinge formation. The distribution of maximum principal stress ahead of the crack tip in PC specimen loaded into fully plastic regime was found to be identical with that of reference stress-strain field in plane-strain SSY condition. 3D FEM simulations have also shown that there is no constraint loss in PC specimens In pearlitic steels the fracture initiation of pre-cracked specimens is strongly affected by Lüders’ flow and higher strength properties. There is a gap in fracture toughness data of pre-cracked Charpy (PC) and compact tension (CT) specimens between 60 and 90 MPam1/2 due to plastic hinge formation. The distribution of maximum principal stress ahead of the crack tip in PC specimen loaded into fully plastic regime was found to be identical with that of reference stress-strain field in plane-strain SSY condition. 3D FEM simulations have also shown that there is no constraint loss in PC specimens (en)
Title	The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel (en) Vliv Lüdersovy deformace na iniciaci křehkého lomu v perlitických ocelí (cs)
skos:prefLabel	The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel (en) Vliv Lüdersovy deformace na iniciaci křehkého lomu v perlitických ocelí (cs)
skos:notation	RIV/68081723:_____/08:00099523!RIV08-AV0-68081723
http://linked.open.../vavai/riv/strany	413;416
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1QS200410502), P(IAA200410502), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Dlouhý, Ivo Holzmann, Miloslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	365143
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/08:00099523
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cleavage fracture; Lüders’ flow; brittle fracture initiation (en)
http://linked.open.../riv/klicoveSlovo	Lüders’ flow brittle fracture initiation cleavage fracture
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[3F816E8E272F]
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Properties of engineering materials under development applicable in the near future in traffic, medicine and power generating industry The scaling role of damage inhomogeneity in brittle fracture
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	567-568
http://linked.open...iv/tvurceVysledku	Dlouhý, Ivo Holzmann, Miloslav Jurášek, L.
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	0255-5476
number of pages	4 (xsd:int)
is http://linked.open...avai/riv/vysledek of	The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel The effect of Lüders’ flow on brittle fracture initiation in pearlitic steel

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