Method of Threshold Stress Determination for a Local Approach to Cleavage Fracture

0474244 - ÚFM 2018 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
Kotrechko, S. - Gryshchenko, V. - Kozák, Vladislav - Dlouhý, Ivo
Method of Threshold Stress Determination for a Local Approach to Cleavage Fracture.
Materials Structure & Micromechanics of Fracture VIII. Zürrich: Trans Tech Publications, 2017 - (Šandera, P.), s. 261-285. Solid State Phenomena, 258. ISBN 978-3-03835-626-4. ISSN 1662-9779.
[MSMF8. International Conference on Materials Structure and Micromechanics of Fracture /8./. Brno (CZ), 27.06.2016-29.06.2016]
Institucionální podpora: RVO:68081723
Klíčová slova: Cleavage * Fracture * Local approach * Threshold stress
Obor OECD: Audio engineering, reliability analysis

The contribution is focused on a new methodology description for determination of threshold stress sigma th, as the third parameter in Beremin local approach to cleavage fracture that is using three-parameter Weibull statistics. Nature of the methodology lies in tensile testing of rounded notched specimens at liquid nitrogen temperature and corresponding calculations. Reactor pressure vessel steel was chosen as an example for the illustration.
Trvalý link: http://hdl.handle.net/11104/0271381