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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F06%3A00044942%21RIV07-AV0-68081723
rdf:type
skos:Concept n18:Vysledek
dcterms:description
A study of fatigue crack growth due to blunting and re-sharpening of a crack tip is proposed in this article. The numerical modeling is based on elastic-plastic finite element analysis using the CASTEM code. On the model of the long cracks, in a semi-infinite plate, the possibility of reasonable prediction of fatigue crack growth due to crack tip blunting mechanism was studied. A parametric study of the influence of the yield stress of material on fatigue crack growth was made. The crack propagation rate was found to be proportional to the amplitude of the crack tip opening displacement in the usual range of the stress intensity factor (corresponding to small scale yielding conditions). Two different experimentally obtained sets of fatigue crack growth data (316LN and P91 steel) were used for comparison with the numerical predictions. A study of fatigue crack growth due to blunting and re-sharpening of a crack tip is proposed in this article. The numerical modeling is based on elastic-plastic finite element analysis using the CASTEM code. On the model of the long cracks, in a semi-infinite plate, the possibility of reasonable prediction of fatigue crack growth due to crack tip blunting mechanism was studied. A parametric study of the influence of the yield stress of material on fatigue crack growth was made. The crack propagation rate was found to be proportional to the amplitude of the crack tip opening displacement in the usual range of the stress intensity factor (corresponding to small scale yielding conditions). Two different experimentally obtained sets of fatigue crack growth data (316LN and P91 steel) were used for comparison with the numerical predictions. V práci jsou uvedeny možnosti numerické simulace šíření únavových trhlin pomocí plastického otupení na čele trhliny. Modelování bylo provedeno v konečnoprvkovém systému CASTEM. Výsledky byly porovnány s experimentálními výsledky získanými na ocelích užívaných v jaderné energetice 316LN a P91.
dcterms:title
Simulation of fatigue crack growth by crack tip blunting Simulation of fatigue crack growth by crack tip blunting Simulace šíření únavových trhlin vlivem plasticity
skos:prefLabel
Simulace šíření únavových trhlin vlivem plasticity Simulation of fatigue crack growth by crack tip blunting Simulation of fatigue crack growth by crack tip blunting
skos:notation
RIV/68081723:_____/06:00044942!RIV07-AV0-68081723
n3:strany
1;8
n3:aktivita
n4:Z n4:P
n3:aktivity
P(GP106/06/P239), Z(AV0Z20410507)
n3:dodaniDat
n13:2007
n3:domaciTvurceVysledku
n12:6154557
n3:druhVysledku
n14:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
499403
n3:idVysledku
RIV/68081723:_____/06:00044942
n3:jazykVysledku
n9:eng
n3:klicovaSlova
plastic blunting; fatigue crack
n3:klicoveSlovo
n15:plastic%20blunting n15:fatigue%20crack
n3:kontrolniKodProRIV
[4792AE201E58]
n3:mistoKonaniAkce
Alexandroupolis
n3:mistoVydani
Dordrecht
n3:nazevZdroje
Fracture of Nano and Engineering Materials and Structures : proceedings
n3:obor
n16:JL
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n21:GP106%2F06%2FP239
n3:rokUplatneniVysledku
n13:2006
n3:tvurceVysledku
Sauzay, M. Hutař, Pavel
n3:typAkce
n10:WRD
n3:zahajeniAkce
2006-07-03+02:00
n3:zamer
n6:AV0Z20410507
s:numberOfPages
8
n11:hasPublisher
Springer-Verlag
n20:isbn
1-4020-4971-4