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Přenositelnost lomové houževnatosti z malých těles na tělesa standardních rozměrů
Dlouhý, Ivo ; Chlup, Zdeněk ; Kozák, Vladislav
The capability of pre-cracked Charpy type specimens for prediction of fracture toughness characteristics for standard (1T) bend specimens has been analysed. The toughness scaling model and the master curve methodology have been combined for these purposes. Cast low-carbon manganese steel cut from midthickness of thick plate was used as an experimental material being tested as a candidate material for container casks of spent nuclear fuel. The Dodds-Anderson toughness scaling model was applied for toughness data correction from small scale pre-cracked Charpy specimens. This approach was combined with master curve methodology for the fracture toughness - temperature diagram and loading rate effects predictions supplying good correlation of predicted data with real behaviour
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