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| rdf:type
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| Description
| - It is generally known that high strength is always accompanied by low ductility for various structural materials [1]. With increasing yield stress and ultimate tensile strength plasticity characteristics, such as elongation, plastic strain ratio r and strain hardening exponent n decrease. The ratio of yield stress to ultimate tensile strength Re/Rm represents the ability to plastic deformation, called plastic reserve and for good formability it reaches a minimum value. The main goal of this study is the comparison between deformation characteristics in the global and local area using a non-contact experimental technique, videoextensometry, for measuring strain during tensile loading at uniform deformation. Steel sheet with 3 mm thickness, made from deep-drawing steel, was used for the investigation on specimens oriented perpendicularly to the rolling direction. Despite similar true stress - true strain curves measured in local and global areas for individual materials, both values of plastic strain ratio r and strain hardening exponent n measured and evaluated in small local area differed from that measured in large global area. The deformation parameters n and r depend on how large is the area where they are measured; higher n and lower r are obtained in larger measured area.
- It is generally known that high strength is always accompanied by low ductility for various structural materials [1]. With increasing yield stress and ultimate tensile strength plasticity characteristics, such as elongation, plastic strain ratio r and strain hardening exponent n decrease. The ratio of yield stress to ultimate tensile strength Re/Rm represents the ability to plastic deformation, called plastic reserve and for good formability it reaches a minimum value. The main goal of this study is the comparison between deformation characteristics in the global and local area using a non-contact experimental technique, videoextensometry, for measuring strain during tensile loading at uniform deformation. Steel sheet with 3 mm thickness, made from deep-drawing steel, was used for the investigation on specimens oriented perpendicularly to the rolling direction. Despite similar true stress - true strain curves measured in local and global areas for individual materials, both values of plastic strain ratio r and strain hardening exponent n measured and evaluated in small local area differed from that measured in large global area. The deformation parameters n and r depend on how large is the area where they are measured; higher n and lower r are obtained in larger measured area. (en)
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| Title
| - Deformation Characteristics of the Tensile Specimens of Steel Sheet in Local and Global Area Using Videoextensometry
- Deformation Characteristics of the Tensile Specimens of Steel Sheet in Local and Global Area Using Videoextensometry (en)
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| skos:prefLabel
| - Deformation Characteristics of the Tensile Specimens of Steel Sheet in Local and Global Area Using Videoextensometry
- Deformation Characteristics of the Tensile Specimens of Steel Sheet in Local and Global Area Using Videoextensometry (en)
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| skos:notation
| - RIV/46747885:24210/12:#0002775!RIV13-MSM-24210___
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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...iv/cisloPeriodika
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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/46747885:24210/12:#0002775
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - tensile test; steel sheet; deformation (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - HLEBOVÁ, Stanislava
- KANDRA, Tomáš
- PEŠEK, Ladislav
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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