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Description
| - This work demonstrates a simple but efficient way how to determine the existence of shear instabilities in ideal bcc crystals under uniaxial loading. The theoretical tensile strengths are derived from calculated values of the theoretical shear strength and their dependence on the superimposed normal stress. The presented procedure enables us to avoid complicated and time-consuming analyses of elastic stability of crystals. Results of first-principles simulations of coupled shear and tensile deformations for two most frequent slip systems (\mbox{\textbraceleft}110\mbox{\textbraceright}$\langle 111\rangle$ and \mbox{\textbraceleft}112\mbox{\textbraceright}$\langle 111\rangle$) in six ideal cubic crystals are used to evaluate the uniaxial tensile strengths in three low-index crystallographic directions ($\langle 100\rangle$, $\langle 110\rangle$, and $\langle 111\rangle$) by assuming a shear instability in the weakest shear system. While instabilities occurring under $\langle 100\rangle$ tension are mos
- This work demonstrates a simple but efficient way how to determine the existence of shear instabilities in ideal bcc crystals under uniaxial loading. The theoretical tensile strengths are derived from calculated values of the theoretical shear strength and their dependence on the superimposed normal stress. The presented procedure enables us to avoid complicated and time-consuming analyses of elastic stability of crystals. Results of first-principles simulations of coupled shear and tensile deformations for two most frequent slip systems (\mbox{\textbraceleft}110\mbox{\textbraceright}$\langle 111\rangle$ and \mbox{\textbraceleft}112\mbox{\textbraceright}$\langle 111\rangle$) in six ideal cubic crystals are used to evaluate the uniaxial tensile strengths in three low-index crystallographic directions ($\langle 100\rangle$, $\langle 110\rangle$, and $\langle 111\rangle$) by assuming a shear instability in the weakest shear system. While instabilities occurring under $\langle 100\rangle$ tension are mos (en)
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Title
| - Shear instabilities in perfect bcc crystals during simulated tensile tests
- Shear instabilities in perfect bcc crystals during simulated tensile tests (en)
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skos:prefLabel
| - Shear instabilities in perfect bcc crystals during simulated tensile tests
- Shear instabilities in perfect bcc crystals during simulated tensile tests (en)
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skos:notation
| - RIV/00216305:26620/13:PU106141!RIV14-MSM-26620___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216305:26620/13:PU106141
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - bcc metals, ab initio, shear (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Pokluda, Jaroslav
- Černý, Miroslav
- Šob, Mojmír
- Šesták, Petr
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http://localhost/t...ganizacniJednotka
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