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Description
  • Moderní výpočetní technika se v posledním desetiletí stala nedílnou součástí nejen návrhu leteckých konstrukcí, ale také jejich kontroly a optimalizace. Využití moderní výpočetní techniky v oblasti certifikace leteckých konstrukcí umožňuje snížení časově i finančně náročných experimentálních měření. V tomto článku jsou shrnuty výsledky modelování růstu únavové poruchy při náhodném zatěžování. Navržená metodika slouží pro kvalifikovaný odhad rychlosti šíření únavové trhliny v obecných 3D tělesech při náhodném zatěžování. Tento projekt byl realizován za finanční podpory ze státních prostředků prostřednictvím Ministerstva průmyslu a obchodu. (cs)
  • Modern computational technology has been become inseparable part of world-wide an aircraft structure development. It is used not only for design but for check and optimisation too. The most popular numerical technique is analyses by means of finite element technique. The submitted article summarises the results of crack growth modelling during random loading and comparison with experimental measurement. The experimental measurement on M(T) specimen and real aircraft component such as wing flange-plate was selected for comparison of impact of stress state in front of the crack tip on crack tip geometry and on fracture surface. The influence of range of plastic zone on shear lips formation is discussed. Furthermore the influence of stress peak during fatigue crack growth propagation is discussed. The technique for qualified assessment of fatigue crack growth rate in 3D body during randomise loading has been proposed.
  • Modern computational technology has been become inseparable part of world-wide an aircraft structure development. It is used not only for design but for check and optimisation too. The most popular numerical technique is analyses by means of finite element technique. The submitted article summarises the results of crack growth modelling during random loading and comparison with experimental measurement. The experimental measurement on M(T) specimen and real aircraft component such as wing flange-plate was selected for comparison of impact of stress state in front of the crack tip on crack tip geometry and on fracture surface. The influence of range of plastic zone on shear lips formation is discussed. Furthermore the influence of stress peak during fatigue crack growth propagation is discussed. The technique for qualified assessment of fatigue crack growth rate in 3D body during randomise loading has been proposed. (en)
Title
  • Porovnání stavu napjatosti na čele únavové trhliny z numerického řešení MKP s experimentálním měřením (cs)
  • Comparison of stress state on the fatigue crack tip from FEA solution with experimental measurement
  • Comparison of stress state on the fatigue crack tip from FEA solution with experimental measurement (en)
skos:prefLabel
  • Porovnání stavu napjatosti na čele únavové trhliny z numerického řešení MKP s experimentálním měřením (cs)
  • Comparison of stress state on the fatigue crack tip from FEA solution with experimental measurement
  • Comparison of stress state on the fatigue crack tip from FEA solution with experimental measurement (en)
skos:notation
  • RIV/00010669:_____/02:00011806!RIV/2005/MPO/106695/N
http://linked.open.../vavai/riv/strany
  • 43;48
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(FB-CV/20)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 641347
http://linked.open...ai/riv/idVysledku
  • RIV/00010669:_____/02:00011806
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • FEM, J-integral, elastoplastic (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [B51F133F2641]
http://linked.open...v/mistoKonaniAkce
  • Praha
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • 40.international conference experimental stress analysis
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Doubrava, Radek
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • České vysoké učení technické v Praze. Fakulta strojní. Ústav mechaniky. Odbor pružnosti a pevnosti
https://schema.org/isbn
  • 80-01-02547-0
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