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Statements

Subject Item
n2:RIV%2F00010669%3A_____%2F12%3A%230001286%21RIV13-MPO-00010669
rdf:type
skos:Concept n8:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1016/j.ijfatigue.2011.09.012
dcterms:description
The aim of this study was to evaluate the influence of a mechanical impact applied in front of a crack tip on fatigue crack growth retardation. Many experiments and numerical simulations were conducted, and the methodology for the numerical evaluation of impact efficiency on fatigue life is stated. Data evaluation and analyses confirmed the expected crack growth retardation and lifetime enhancement. The impact energy, crack length and load level had a substantial effect on the retardation of crack growth. Under suitable conditions, the impact indentation technique can cause the full arrest of crack propagation. The efficiency of impact application as a crack stopper increased mainly because of the reduction in the stress intensity factor values. In some cases, this method can replace more conventional approaches, such as drilling or repair by bonded or mechanically joined patches. The aim of this study was to evaluate the influence of a mechanical impact applied in front of a crack tip on fatigue crack growth retardation. Many experiments and numerical simulations were conducted, and the methodology for the numerical evaluation of impact efficiency on fatigue life is stated. Data evaluation and analyses confirmed the expected crack growth retardation and lifetime enhancement. The impact energy, crack length and load level had a substantial effect on the retardation of crack growth. Under suitable conditions, the impact indentation technique can cause the full arrest of crack propagation. The efficiency of impact application as a crack stopper increased mainly because of the reduction in the stress intensity factor values. In some cases, this method can replace more conventional approaches, such as drilling or repair by bonded or mechanically joined patches.
dcterms:title
Application of indentation as a retardation mechanism for fatigue crack growth Application of indentation as a retardation mechanism for fatigue crack growth
skos:prefLabel
Application of indentation as a retardation mechanism for fatigue crack growth Application of indentation as a retardation mechanism for fatigue crack growth
skos:notation
RIV/00010669:_____/12:#0001286!RIV13-MPO-00010669
n8:predkladatel
n9:ico%3A00010669
n3:aktivita
n11:I
n3:aktivity
I
n3:cisloPeriodika
April 2012
n3:dodaniDat
n15:2013
n3:domaciTvurceVysledku
n17:5055911 n17:4780272
n3:druhVysledku
n6:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
123323
n3:idVysledku
RIV/00010669:_____/12:#0001286
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Metal; Indentation; Impact; Crack growth; Retardation
n3:klicoveSlovo
n18:Retardation n18:Impact n18:Indentation n18:Crack%20growth n18:Metal
n3:kodStatuVydavatele
GR - Řecká republika
n3:kontrolniKodProRIV
[EA7E4D530151]
n3:nazevZdroje
International Journal of Fatigue
n3:obor
n5:JL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n15:2012
n3:svazekPeriodika
37
n3:tvurceVysledku
Doubrava, Radek Růžek, Roman Pavlas, Jiří
n3:wos
000299911100011
s:issn
0142-1123
s:numberOfPages
8
n19:doi
10.1016/j.ijfatigue.2011.09.012