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| rdf:type
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| Description
| - Torsion plastometry is one of the most widely recognized methods of laboratory research for exploring deformation characteristics of hot-formed metallic materials. It is one of the two basic tests (together with compression test) which offer the arrangement where one thermomechanical parameter is kept constant while the other two out of three (temperature, strain rate, strain) are varied. A torsion test is based on the effects of shear stress and is the only test to involve large strain magnitudes without effects of external friction. Its drawbacks include the fact that the level of strain between the axis of the sample and its surface is not uniform, which makes the resulting microstructure difficult to define. Evaluation of measured parameters, i.e. the torque, number of twists and duration of the test is based on three principles. It involves finding the mathematical relation for true strain using the strain intensity relationship and obtaining, in turn, the strain rate intensity. This can then be compared using the newly created FEM-based TTFEM software. With this program, it is possible to calculate the temperature field, strain, strain rate and stress distributions in the worked part. The levels of strain are examined along a line between the part’s axis and the surface using microhardness measurement. Experiments showed that the mathematical formula is identical to the computer simulation, as evidenced by results of the subsequent microhardness test
- Torsion plastometry is one of the most widely recognized methods of laboratory research for exploring deformation characteristics of hot-formed metallic materials. It is one of the two basic tests (together with compression test) which offer the arrangement where one thermomechanical parameter is kept constant while the other two out of three (temperature, strain rate, strain) are varied. A torsion test is based on the effects of shear stress and is the only test to involve large strain magnitudes without effects of external friction. Its drawbacks include the fact that the level of strain between the axis of the sample and its surface is not uniform, which makes the resulting microstructure difficult to define. Evaluation of measured parameters, i.e. the torque, number of twists and duration of the test is based on three principles. It involves finding the mathematical relation for true strain using the strain intensity relationship and obtaining, in turn, the strain rate intensity. This can then be compared using the newly created FEM-based TTFEM software. With this program, it is possible to calculate the temperature field, strain, strain rate and stress distributions in the worked part. The levels of strain are examined along a line between the part’s axis and the surface using microhardness measurement. Experiments showed that the mathematical formula is identical to the computer simulation, as evidenced by results of the subsequent microhardness test (en)
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| Title
| - Strain and strain rate in torsion test
- Strain and strain rate in torsion test (en)
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| skos:prefLabel
| - Strain and strain rate in torsion test
- Strain and strain rate in torsion test (en)
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| skos:notation
| - RIV/61989100:27360/11:86081087!RIV12-GA0-27360___
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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
| - P(ED0040/01/01), P(GA106/07/0631), S
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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
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27360/11:86081087
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - strain rate; strain; Torsion test (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...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - 20th Anniversary International Conference on Metallurgy and Materials: METAL 2011
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Drozd, Kamil
- Horsinka, Jaromír
- Kliber, Jiří
- Mamuzič, Ilja
- Ostroushko, Dmytro
- Černý, Martin
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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