Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU139744" target="_blank" >RIV/00216305:26210/20:PU139744 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/5.0033973" target="_blank" >http://dx.doi.org/10.1063/5.0033973</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0033973" target="_blank" >10.1063/5.0033973</a>

Result language
angličtina
Original language name
Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.
Original language description
his article presents a new method for determination of parameters of the Ramberg-Osgood (R-O) approxi-mation of the tensile diagram based on the loading-frame displacement. This procedure was successfully verified on thesamples of the high strength steel OCHN3MFA tested at various temperatures with records of both the extensometer elon-gation and the load-frame displacement. The method can be used in the model for prediction of theKIc-value based onthe critical strain local approach. The parameters of the R-O approximation obtained from the extensometer-controlledand the load-frame controlled tests are in a very good agreement. Moreover, the experimentalKIc-value at the cryogenictemperature of 77 K and the theoretical one predicted using the loading-frame displacement data are practically identical.
Czech name
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Czech description
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Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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