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  • Results of FEM simulations of fatigue crack growth under mixed mode loading are presented in this paper. At Czech Technical University in Prague (CTU) the program code which uses commercial software ABAQUS for fatigue crack simulations has been developed. The program works on basis of gradual crack extending. In simulation are considered small scale yielding conditions. Both classic criteria (J-integral, maximum of hoop stress, Paris law) and two-parameter criteria incorporating T-stress (extended hoop stress criterion and modified Paris law) are used for crack behaviour description. Experiments were carried out on two sets of simple specimens. The results of numerical simulations are compared with carried out experiments. Computed crack growth rate corresponds to experiments for shorter cracks at which T-stress is not significant. Computed crack shapes are in very good agreement with experiments.
  • Results of FEM simulations of fatigue crack growth under mixed mode loading are presented in this paper. At Czech Technical University in Prague (CTU) the program code which uses commercial software ABAQUS for fatigue crack simulations has been developed. The program works on basis of gradual crack extending. In simulation are considered small scale yielding conditions. Both classic criteria (J-integral, maximum of hoop stress, Paris law) and two-parameter criteria incorporating T-stress (extended hoop stress criterion and modified Paris law) are used for crack behaviour description. Experiments were carried out on two sets of simple specimens. The results of numerical simulations are compared with carried out experiments. Computed crack growth rate corresponds to experiments for shorter cracks at which T-stress is not significant. Computed crack shapes are in very good agreement with experiments. (en)
  • V článku jsou prezentovány výsledky numerických simulací šíření únavových trhlin v podmínkách smíšeného zatěžování. Na ČVUT v Praze byl vyvinut program využívající komerční kód ABAQUS pro simulace šíření trhlin.Program je založen na postupném šíření trhliny za předpokladu LLM. V programu byla implementována a testována klasická i dvouparametrická (T-napětí) kritéria. Byly provedeny experimenty na jednoduchých vzorcích a porovnány s výsledky simulací. Vypočtené rychlosti šíření korespodují dobře pro kratší trhliny, kde T-napětí není tak významné. Vypočtené tvary jsou ve velmi dobré shodě s experimenty. (cs)
Title
  • Verification of FE model of fatigue crack propagation under mixed mode conditions
  • Verification of FE model of fatigue crack propagation under mixed mode conditions (en)
  • Verifikace MKP modelu šíření únavové trhliny v podmínkách smíšeného zatížení (cs)
skos:prefLabel
  • Verification of FE model of fatigue crack propagation under mixed mode conditions
  • Verification of FE model of fatigue crack propagation under mixed mode conditions (en)
  • Verifikace MKP modelu šíření únavové trhliny v podmínkách smíšeného zatížení (cs)
skos:notation
  • RIV/68407700:21220/08:02149710!RIV09-GA0-21220___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/06/1427)
http://linked.open...iv/cisloPeriodika
  • Vol. 43
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 402534
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  • RIV/68407700:21220/08:02149710
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  • crack propagation; finite element method; two-parameter fracture mechanics (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [28C7B8519B6C]
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  • MECCANICA
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http://linked.open...ichTvurcuVysledku
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http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Jurenka, Josef
  • Kuželka, Jiří
  • Španiel, Miroslav
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  • 1572-9648
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http://localhost/t...ganizacniJednotka
  • 21220
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