About: Influence of notch width on fracture response of bended concrete specimens

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An influence of the test specimen’s preparation – shape and width of a stress concentrator – on the values of parameters of nonlinear fracture models of quasi-brittle cement-based composites is analyses in the paper presented. The parameters – e.g. effective crack extension, effective fracture toughness, and specific fracture energy – can be calculated from results of loading tests performed on notched three point bend specimens. The effects are investigated by means of a comparison of numerically simulated fracture process in the cracked specimen with the specimens with the double V-notch. The numerical simulations of the fracture according to the linear elastic fracture mechanics were performed by using finite element method programs (ANSYS, and FRANC2D). The influence on the load-carrying capacity and the initial compliance of the cracked specimen are introduced and discussed. An influence of the test specimen’s preparation – shape and width of a stress concentrator – on the values of parameters of nonlinear fracture models of quasi-brittle cement-based composites is analyses in the paper presented. The parameters – e.g. effective crack extension, effective fracture toughness, and specific fracture energy – can be calculated from results of loading tests performed on notched three point bend specimens. The effects are investigated by means of a comparison of numerically simulated fracture process in the cracked specimen with the specimens with the double V-notch. The numerical simulations of the fracture according to the linear elastic fracture mechanics were performed by using finite element method programs (ANSYS, and FRANC2D). The influence on the load-carrying capacity and the initial compliance of the cracked specimen are introduced and discussed. (en) V příspěvku je analyzován Vliv tvaru a hlouby zářezu ve zkušebních tělesech kvazi- křehkých cementového kompozitu na hodnoty nelineární lomových parametrů. Parametry jako efektivní prodloužení trhliny, efektivní lomová houževnatost specifická lomová energie lze získat ze zatěžovacího diagramu pro tříbodový ohyb. Efekt je studován použitím konečnoprvkové analýzy lomového procesu na tělese pro tříbodový ohyb se zářezem ve tvaru dvou pravoúhlých vrubů. Vliv na zatěžovací kapacitu a na počáteční iniciaci trhliny je představen a diskutová (cs)
Title	Influence of notch width on fracture response of bended concrete specimens Vliv šířky zářezu na lomovou odezvu ohýbaných betonových vzorků (cs) Influence of notch width on fracture response of bended concrete specimens (en)
skos:prefLabel	Influence of notch width on fracture response of bended concrete specimens Vliv šířky zářezu na lomovou odezvu ohýbaných betonových vzorků (cs) Influence of notch width on fracture response of bended concrete specimens (en)
skos:notation	RIV/68081723:_____/08:00317569!RIV09-AV0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA103/08/0963), Z(AV0Z20410507)
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Seitl, Stanislav Klusák, Jan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	372196
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/08:00317569
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Notch geometry; 3PB specimens; fracture parameters; cement-based composites (en)
http://linked.open.../riv/klicoveSlovo	fracture parameters Notch geometry cement-based composites 3PB specimens
http://linked.open...ontrolniKodProRIV	[A5DB0C7B03A6]
http://linked.open...v/mistoKonaniAkce	Svratka
http://linked.open...i/riv/mistoVydani	Prague
http://linked.open...i/riv/nazevZdroje	Engineering Mechanics 2008
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Basic fatigue characteristic and fracture of advanced building materials
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Klusák, Jan Seitl, Stanislav Veselý, V. Keršner, Z.
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2008-05-12 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Ústav termomechaniky AV ČR
https://schema.org/isbn	978-80-87012-11-6

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