About: Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress

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About: Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Ductile fracture initiated by a crack is modeled as a process influenced by two factors: (i) the local value of the elastic energy density of the deviatoric part of the stress tensor, and (ii) the nonlocal values of the elastic energy density of the isotropic part of the stress tensor. The effective spot for the deviatoric energy is located at some distance ahead of the crack tip, the nonlocal effect of the isotropic energy operates from a neighborhood of the effective spot, determined by a specific distance from this spot. These assumptions lead to a strength criterion, which is formally a generalization of the Mises criterion. The presented criterion can be used for modeling the influence of the length of the crack, for modeling such phenomena as avoidance of two cracks proceeding against each other, for the pop-in phenomenon, for slowing-down of the progress of a crack near a free surface, etc. Ductile fracture initiated by a crack is modeled as a process influenced by two factors: (i) the local value of the elastic energy density of the deviatoric part of the stress tensor, and (ii) the nonlocal values of the elastic energy density of the isotropic part of the stress tensor. The effective spot for the deviatoric energy is located at some distance ahead of the crack tip, the nonlocal effect of the isotropic energy operates from a neighborhood of the effective spot, determined by a specific distance from this spot. These assumptions lead to a strength criterion, which is formally a generalization of the Mises criterion. The presented criterion can be used for modeling the influence of the length of the crack, for modeling such phenomena as avoidance of two cracks proceeding against each other, for the pop-in phenomenon, for slowing-down of the progress of a crack near a free surface, etc. (en)
Title	Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress (en)
skos:prefLabel	Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress Crack propagation model taking into consideration the local effect of the deviatoric stress and the non-local effect of the isotropic stress (en)
skos:notation	RIV/68378297:_____/11:00375077!RIV12-AV0-68378297
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA103/09/2101), Z(AV0Z20710524)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kafka, Vratislav
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 teoretické a aplikované mechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	192170
http://linked.open...ai/riv/idVysledku	RIV/68378297:_____/11:00375077
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	crack propagation; nonlocal effect; deviatoric local effect; isotropic nonlocal (en)
http://linked.open.../riv/klicoveSlovo	crack propagation deviatoric local effect isotropic nonlocal nonlocal effect
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[FE34F5D15E30]
http://linked.open...i/riv/nazevZdroje	Acta Technica ČSAV
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Evaluation of the energy responsible for fracture advancing
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Kafka, Vratislav
http://linked.open...n/vavai/riv/zamer	Time dependent response of materials, systems and environments on natural and human actions
issn	0001-7043
number of pages	16 (xsd:int)

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