About: Critical applied stresses for a crack initiation from a sharp V-notch

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. The value of the stress singularity exponent depends on the V-notch opening angle. The finite element method was used for a determination of stress distribution in the vicinity of the sharp V-notch tip and for the estimation of the generalized stress intensity factor depending on the V-notch opening angle. Critical value of the generalized stress intensity factor was obtained using stability criteria based on the opening stress component averaged over a critical distance d from the V-notch tip and generalized strain energy density factor. Calculated values of the critical applied stresses were compared with experimental data from the literature and applicability of the LEFM concept is discussed. The aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. The value of the stress singularity exponent depends on the V-notch opening angle. The finite element method was used for a determination of stress distribution in the vicinity of the sharp V-notch tip and for the estimation of the generalized stress intensity factor depending on the V-notch opening angle. Critical value of the generalized stress intensity factor was obtained using stability criteria based on the opening stress component averaged over a critical distance d from the V-notch tip and generalized strain energy density factor. Calculated values of the critical applied stresses were compared with experimental data from the literature and applicability of the LEFM concept is discussed. (en)
Title	Critical applied stresses for a crack initiation from a sharp V-notch Critical applied stresses for a crack initiation from a sharp V-notch (en)
skos:prefLabel	Critical applied stresses for a crack initiation from a sharp V-notch Critical applied stresses for a crack initiation from a sharp V-notch (en)
skos:notation	RIV/68081723:_____/14:00434767!RIV15-AV0-68081723
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(EE2.3.20.0214), P(EE2.3.30.0063)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Štegnerová, Kateřina Náhlík, Luboš Hutař, Pavel
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	9200
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/14:00434767
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Crack initiation; V-notch; critical stress; strain energy density factor; generalized linear elastic fracture mechanics; fracture criteria (en)
http://linked.open.../riv/klicoveSlovo	generalized linear elastic fracture mechanics strain energy density factor V-notch Crack initiation critical stress fracture criteria
http://linked.open...ontrolniKodProRIV	[FD2A86D88203]
http://linked.open...v/mistoKonaniAkce	Catania
http://linked.open...i/riv/mistoVydani	Catania
http://linked.open...i/riv/nazevZdroje	Frattura ed Integrita Strutturale
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Human Resources Development in the research of physical and material properties of emerging, newly developed and applied engineering materials Talented postdocs for scientific excellence in physics of materials
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Hutař, Pavel Náhlík, Luboš Štegnerová, Kateřina
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-09-15 (xsd:date)
issn	1971-8993
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.3221/IGF-ESIS.30.08
http://purl.org/ne...btex#hasPublisher	Gruppo Italiano Frattura
https://schema.org/isbn	978-88-95940-49-6

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