Mathematical description of stress - strain behavior of hot - formed steel by means of plastometric examination

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86075627" target="_blank" >RIV/61989100:27360/10:86075627 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mathematical description of stress - strain behavior of hot - formed steel by means of plastometric examination
Original language description
This paper explores the potential of an approximate description of the stress-strain relationship. Listed are the principles and the proposed form of simple non-linear (relying on no more than two exponential functions), non-continuous (including the initial linear portion according to the Hooke's law) and approximate models of the dependence of flow stress (stress) on the amount of strain. This model should be applied to specific measured data from stress-strain curves for three strain rates: 0.1, 1 and 10 s-1 at the temperature of the specimen of 1,273 K. The specimens were made of 9Cr steel. The curves were obtained by processing flat specimens of mm in the Gleeble compression simulator. Implementation and verification of the model was performed inMicrosoft Excel using its convenient Solver tool. Finally, the calculated values were compared with experimentally measured data.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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