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Description
  • Vliv napětí aplikovaného kolmo ke skluzové rovině v průběhu smykové deformace krystalu na teoretickou smykovou pevnost je důležitý v mnoha deformačních procesech. Jako příklad lze uvažovat nanoindentační proces jako kombinaci smykové a tlakové deformace v okolí indentoru. Předchozí studie založené na Lennard-Jonesových potenciálech naznačovaly téměř lineární závislost teoretické smykové pevnosti na normálovém tahovém a tlakovém zatěžování. Cílem této studie je ověřit tyto výsledky s užitím ab initio přístupu pro bcc Nb, Mo a W. Tyto tři bcc krystaly byly podrobeny smyku v <111>{112} skluzovém systému. Lineární závisost byla potvrzena. (cs)
  • The influence of stress applied perpendicularly to a slip plane during shear deformation of a crystal on the shear strength is important in many deformation processes. As an example, one can consider a nanoindentation process as a combination of shear and compressive deformations in the vicinity of an indentor. Previous studies, based on the empirical Lennard- Jones potential, suggested nearly linear dependence of the theoretical shear strength on the normal tensile and compressive loading. The aim of this study is to verify those results using an ab initio approach for bcc Nb, Mo and W. The three bcc crystals were subjected to shear deformations in <111>{112} slip system. Linear dependence was confirmed.
  • The influence of stress applied perpendicularly to a slip plane during shear deformation of a crystal on the shear strength is important in many deformation processes. As an example, one can consider a nanoindentation process as a combination of shear and compressive deformations in the vicinity of an indentor. Previous studies, based on the empirical Lennard- Jones potential, suggested nearly linear dependence of the theoretical shear strength on the normal tensile and compressive loading. The aim of this study is to verify those results using an ab initio approach for bcc Nb, Mo and W. The three bcc crystals were subjected to shear deformations in <111>{112} slip system. Linear dependence was confirmed. (en)
Title
  • Influence of Superimposed Normal Loading on the Shear Strength in bcc Metals
  • Vliv superponovaného normálového napětí na teoretickou smykovou pevnost v bcc kovech (cs)
  • Influence of Superimposed Normal Loading on the Shear Strength in bcc Metals (en)
skos:prefLabel
  • Influence of Superimposed Normal Loading on the Shear Strength in bcc Metals
  • Vliv superponovaného normálového napětí na teoretickou smykovou pevnost v bcc kovech (cs)
  • Influence of Superimposed Normal Loading on the Shear Strength in bcc Metals (en)
skos:notation
  • RIV/00216305:26210/06:PU62013!RIV07-MSM-26210___
http://linked.open.../vavai/riv/strany
  • 414-417
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(OC 148)
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
  • 479519
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26210/06:PU62013
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Shear strength, ab initio, influence of normal stress, bcc metals. (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [5DB0B83D95EB]
http://linked.open...v/mistoKonaniAkce
  • Freiburg
http://linked.open...i/riv/mistoVydani
  • Stuttgart
http://linked.open...i/riv/nazevZdroje
  • Conference proceedings MMM2006
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
  • Pokluda, Jaroslav
  • Černý, Miroslav
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • Fraunhofer IRB Verlag
https://schema.org/isbn
  • 3-8167-7206-4
http://localhost/t...ganizacniJednotka
  • 26210
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