Constraint Effects at Brittle Fracture Initiation in a Cast Ferritic Steel

0178125 - UFM-A 20033145 RIV GB eng J - Článek v odborném periodiku
Dlouhý, Ivo - Chlup, Zdeněk - Kozák, Vladislav
Constraint Effects at Brittle Fracture Initiation in a Cast Ferritic Steel.
Engineering Fracture Mechanics. č. 71 (2004), s. 873-883. ISSN 0013-7944. E-ISSN 1873-7315
Grant CEP: GA AV ČR IAA2041003
Výzkumný záměr: CEZ:AV0Z2041904
Klíčová slova: Cast ferritic steel * transition behaviour * fracture toughness
Kód oboru RIV: JL - Únava materiálu a lomová mechanika
Impakt faktor: 1.299, rok: 2004
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The fracture resistance of a cast low carbon manganese ferritic steel intended for containers for spent nuclear fuel has been analysed by combining several approaches.Based on data from three-point bend specimens with shallow and deep cracks the e .ect of crack tip constraint at brittle fracture initiation has been followed.Q -parameter was used for the constraint quanti .cation.The crack length e .ect on the fracture toughness - temperature diagram has been analysed and peculiarities of fracture behaviour in the lower shelf region have been explained.The role of cleavage fracture stress in brittle fracture initiation under the in .uence of crack tip constraint has been analysed.
Trvalý link: http://hdl.handle.net/11104/0075017