. . "[ED40D8E20E5A]" . "47" . "Fracture toughness of cast ferritic steel applying local approach" . . "Lomov\u00E1 hou\u017Eevnatost feritick\u00E9 oceli na odlitky s vyu\u017Eit\u00EDm lok\u00E1ln\u00EDho p\u0159\u00EDstupu"@cs . . "P(GA106/06/0646), P(IAA200410502), Z(AV0Z20410507)" . . "422492" . . "local approach; probability; fracture toughness"@en . "Fracture toughness of cast ferritic steel applying local approach" . "Fracture characteristics prediction with temperature dependence has been made and experimentally proved for cast manganese steel. The approach is based on computer simulation of the crack nucleus formation and unstable microcrack equilibrium in polycrystalline metal. Results of low-temperature tests of smooth tensile specimens, tensile specimens with circumferential U and V notches, pre-cracked bend specimens and tensile specimens with circumferential shallow crack have been applied. A good agreement of predicted and experimentally determined fracture toughness temperature dependence for the tested steel has been obtained."@en . . "Dlouh\u00FD, Ivo" . . "RIV/68081723:_____/07:00080397!RIV07-AV0-68081723" . . "S vyu\u017Eit\u00EDm experiment\u00E1ln\u011B nam\u011B\u0159en\u00FDch dat pro feritickou ocel na odlitky byla v pr\u00E1ci testov\u00E1na predikce teplotn\u00ED z\u00E1vislosti lomov\u00E9 hou\u017Eevnatosti. Navrhovan\u00FD lok\u00E1ln\u00ED p\u0159\u00EDstup je zalo\u017Een na v\u00FDpo\u010Dtov\u00E9 simulaci tvorby z\u00E1rodku trhliny a nestabiln\u00ED rovnov\u00E1hy trhliny v polykrystalick\u00E9m materi\u00E1lu. Pro ov\u011B\u0159ov\u00E1n\u00ED v\u00FDpo\u010Dt\u016F byly vyu\u017Eity v\u00FDsledky n\u00EDzkoteplotn\u00EDch zkou\u0161ek tahov\u00FDch ty\u010D\u00ED hladk\u00FDch, resp. s obvodov\u00FDmi U a V vruby a trhlinou. Sou\u010Dasn\u011B byla testov\u00E1na standardn\u00ED ohybov\u00E1 t\u011Blesa. Bylo dosa\u017Eeno velmi dobr\u00E9ho souladu predikovan\u00FDch a experiment\u00E1ln\u011B nam\u011B\u0159en\u00FDch teplotn\u00EDch z\u00E1vislost\u00ED lomov\u00E9 hou\u017Eevnatosti."@cs . . . . "1"^^ . "Strnadel, B." . "3"^^ . "NL - Nizozemsko" . "Fracture toughness of cast ferritic steel applying local approach"@en . "171;181" . "Kotrechko, S. A." . . . "2" . "11"^^ . "RIV/68081723:_____/07:00080397" . . "Fracture toughness of cast ferritic steel applying local approach"@en . . "Lomov\u00E1 hou\u017Eevnatost feritick\u00E9 oceli na odlitky s vyu\u017Eit\u00EDm lok\u00E1ln\u00EDho p\u0159\u00EDstupu"@cs . . "Theoretical and Applied Fracture Mechanics" . . "0167-8442" . "Fracture characteristics prediction with temperature dependence has been made and experimentally proved for cast manganese steel. The approach is based on computer simulation of the crack nucleus formation and unstable microcrack equilibrium in polycrystalline metal. Results of low-temperature tests of smooth tensile specimens, tensile specimens with circumferential U and V notches, pre-cracked bend specimens and tensile specimens with circumferential shallow crack have been applied. A good agreement of predicted and experimentally determined fracture toughness temperature dependence for the tested steel has been obtained." .