About: The effect of a free surface on fatigue crack behaviour

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The effect of a free surface on fatigue crack behaviour is discussed in the paper and generalized stress intensity factor methodology is used for a reliable estimation of the fatigue crack propagation rate in the area close to a free surface, where the effect of vertex singularity is important. It is shown that a decrease in the stress singularity exponent close to the vertex point leads to a decrease in the fatigue crack propagation rate and contributes to a typical curved crack front shape. The numerical estimations of the crack shape correspond well with experimental observations taken from the literature. Further change of the stress singularity exponent for thin structures was studied on M(T) specimens with different thicknesses. The proposed methodology facilitates explanation of the experimentally observed decrease in the fatigue crack propagation rate (FCPR) for thin structures. It is shown, that decrease of FCPR depends on Poisson's ratio and parameters of the Paris - Erdogan law for correspo The effect of a free surface on fatigue crack behaviour is discussed in the paper and generalized stress intensity factor methodology is used for a reliable estimation of the fatigue crack propagation rate in the area close to a free surface, where the effect of vertex singularity is important. It is shown that a decrease in the stress singularity exponent close to the vertex point leads to a decrease in the fatigue crack propagation rate and contributes to a typical curved crack front shape. The numerical estimations of the crack shape correspond well with experimental observations taken from the literature. Further change of the stress singularity exponent for thin structures was studied on M(T) specimens with different thicknesses. The proposed methodology facilitates explanation of the experimentally observed decrease in the fatigue crack propagation rate (FCPR) for thin structures. It is shown, that decrease of FCPR depends on Poisson's ratio and parameters of the Paris - Erdogan law for correspo (en)
Title	The effect of a free surface on fatigue crack behaviour The effect of a free surface on fatigue crack behaviour (en)
skos:prefLabel	The effect of a free surface on fatigue crack behaviour The effect of a free surface on fatigue crack behaviour (en)
skos:notation	RIV/00216305:26210/10:PU87726!RIV12-MSM-26210___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA101/09/0867), P(GA106/09/1954), S, Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Náhlík, Luboš Hutař, Pavel
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	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	255857
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/10:PU87726
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Vertex singularity, Generalized stress intensity factor, Stress singularity, Fatigue crack, V-notch (en)
http://linked.open.../riv/klicoveSlovo	V-notch Generalized stress intensity factor Stress singularity Fatigue crack Vertex singularity
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[4F0C1C35E1DE]
http://linked.open...i/riv/nazevZdroje	INTERNATIONAL JOURNAL OF FATIGUE
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	Assessment of fatigue damage of thin-walled structures Role of oxide dispersion in fatigue behaviour of ODS type steels
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	32
http://linked.open...iv/tvurceVysledku	Hutař, Pavel Knésl, Zdeněk Náhlík, Luboš
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	0142-1123
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26210

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