. "Dordrecht" . . "Alexandroupolis" . . . "Local approach use at solution of fracture parameters transferability" . "2"^^ . . "3"^^ . "2006-07-03+02:00"^^ . "Pou\u017Eit\u00ED lok\u00E1ln\u00EDho p\u0159\u00EDstupu p\u0159i \u0159e\u0161en\u00ED transferability lomov\u011B mechanick\u00FDch parametr\u016F"@cs . "RIV/68081723:_____/06:00041741!RIV07-AV0-68081723" . . . . "Local approach use at solution of fracture parameters transferability"@en . . "1;8" . . . "In some applications the pre-cracked Charpy specimens (PC) can be, after meeting the validity conditions applied for specification of fracture toughness characteristics corresponding to standard specimens. Typically this is the case of pearlitic steel R7T (used for railway wheelset production) with L\u00FCders\u2019 flow and higher strength properties. It has been found that there is a gap in fracture toughness data of PC specimens between the 60 and 90 MPam1/2 due to plastic hinge in net section of PC specimens. The distribution of maximum principal stress ahead of the crack tip in PC specimen loaded into fully plastic regime was found to be identical with that of reference stress-strain field in plane-strain SSY condition. 3D FEM simulations also shown that there is no constraint loss in PC specimens."@en . "Dlouh\u00FD, Ivo" . "Holzmann, Miloslav" . "Springer-Verlag" . . . . "Fracture of Nano and Engineering Materials and Structures : proceedings" . "8"^^ . "Pou\u017Eit\u00ED lok\u00E1ln\u00EDho p\u0159\u00EDstupu p\u0159i \u0159e\u0161en\u00ED transferability lomov\u011B mechanick\u00FDch parametr\u016F"@cs . "P\u0159i zachov\u00E1n\u00ED podm\u00EDnek platnosti mohou b\u00FDt t\u011Blesa typu Charpy s trhlinou (PC) pou\u017Eita pro specifikaci charakteristik lomov\u00E9 hou\u017Eevnatosti odpov\u00EDdaj\u00EDc\u00EDch standardn\u00EDm t\u011Bles\u016Fm. Typick\u00FDm p\u0159\u00EDpadem je perlitick\u00E1 ocel R7T pou\u017E\u00EDvan\u00E1 na v\u00FDrobu \u017Eelezni\u010Dn\u00EDch dvojkol\u00ED charakteristick\u00E1 v\u00FDraznou mez\u00ED kluzu a zv\u00FD\u0161en\u00FDmi pevnostn\u00EDmi vlastnostmi. Bylo zji\u0161t\u011Bno, \u017Ee v d\u016Fsledku rozs\u00E1hl\u00E9 L\u00FCdersovy deformace je v rozmez\u00ED 60 a\u017E 90 MPam1/2 pozorov\u00E1na absence hodnot lomov\u00E9 hou\u017Eevnastoti a to v d\u016Fsledku formov\u00E1n\u00ED plastick\u00E9ho kloubu v nedolomen\u00E9 \u010D\u00E1sti t\u011Bles. Distribuce nejv\u011Bt\u0161\u00EDho hlavn\u00EDho nap\u011Bt\u00ED p\u0159ed \u010Delem trhliny PC t\u011Blesa zat\u011B\u017Eovan\u00E9ho v re\u017Eimu rozs\u00E1hl\u00FDch plastick\u00FDch deformac\u00ED bylo shodn\u00E9 s pr\u016Fb\u011Bhem t\u00E9to charakteristiky u referen\u010Dn\u00EDho pole (pro podmnky SSY). 3D v\u00FDpo\u010Dty metodou kone\u010Dn\u00FDch prvk\u016F prok\u00E1zaly, \u017Ee u vzorku nedoch\u00E1z\u00ED ke ztr\u00E1t\u011B constraintu."@cs . "local approach; pearlitic steel; fracture toughness"@en . "In some applications the pre-cracked Charpy specimens (PC) can be, after meeting the validity conditions applied for specification of fracture toughness characteristics corresponding to standard specimens. Typically this is the case of pearlitic steel R7T (used for railway wheelset production) with L\u00FCders\u2019 flow and higher strength properties. It has been found that there is a gap in fracture toughness data of PC specimens between the 60 and 90 MPam1/2 due to plastic hinge in net section of PC specimens. The distribution of maximum principal stress ahead of the crack tip in PC specimen loaded into fully plastic regime was found to be identical with that of reference stress-strain field in plane-strain SSY condition. 3D FEM simulations also shown that there is no constraint loss in PC specimens." . "[C96FB8407F4E]" . "RIV/68081723:_____/06:00041741" . "Local approach use at solution of fracture parameters transferability" . . . "1-4020-4971-4" . "483494" . "Jur\u00E1\u0161ek, L." . "P(1QS200410502), P(IAA200410502), Z(AV0Z20410507)" . . . . "Local approach use at solution of fracture parameters transferability"@en . .