"978-80-7204-543-3" . . . . . "Zkou\u0161ky konstruk\u010Dn\u00EDch materi\u00E1l\u016F pro z\u00EDsk\u00E1n\u00ED hodnot lomov\u011B-mechanick\u00FDch veli\u010Din jsou prov\u00E1d\u011Bny na tvarov\u011B r\u016Fzn\u00FDch t\u011Blesech. Mezi nejpou\u017E\u00EDvan\u011Bj\u0161\u00ED lomov\u00E9 experimenty pat\u0159\u00ED zkou\u0161ka vzork\u016F t\u0159\u00EDbodov\u00FDm ohybem. V p\u0159\u00EDpad\u011B t\u00E9to zkou\u0161ky se u\u017E\u00EDvaj\u00ED t\u011Blesa se z\u00E1\u0159ezem, kter\u00FD zaji\u0161\u0165uje iniciaci trhliny. Ukazuje se, \u017Ee na \u0161\u00ED\u0159ce tohoto z\u00E1\u0159ezu z\u00E1vis\u00ED p\u0159esnost m\u011B\u0159en\u00FDch lomov\u011B-mechanick\u00FDch parametr\u016F, nap\u0159. efektivn\u00ED lomov\u00E1 hou\u017Eevnatost \u010Di efektivn\u00ED hou\u017Eevnatost. C\u00EDlem p\u0159\u00EDsp\u011Bvku je na z\u00E1klad\u011B v\u00FDpo\u010Dt\u016F metodou kone\u010Dn\u00FDch prvk\u016F analyzovat vliv \u0161\u00ED\u0159ky z\u00E1\u0159ezu pro r\u016Fzn\u00E9 geometrie vzorku/zkou\u0161ky na iniciaci po\u010D\u00E1te\u010Dn\u00ED trhliny. Tento vliv na z\u00EDskan\u00E9 hodnoty lomov\u011B-mechanick\u00FDch parametr\u016F auto\u0159i kvantifikuj\u00ED a jsou vyslovena doporu\u010Den\u00ED pro korektn\u00ED vyhodnocen\u00ED experiment\u016F, v\u010Detn\u011B pou\u017Eiteln\u00FDch aproxima\u010Dn\u00EDch funkc\u00ED."@cs . . . . "Brno" . "Lomov\u00E1 hou\u017Eevnatost z t\u0159\u00EDbodov\u00E9ho ohybu vzork\u016F z kvazik\u0159ehk\u00FDch materi\u00E1l\u016F: Korekce vzhledem k \u0161\u00ED\u0159ce z\u00E1\u0159ezu"@cs . "Fracture toughness of quasi-brittle specimens using three-point bending test: Correction with respect to notch width"@en . "Brno" . "RIV/68081723:_____/07:00094678" . . . "Akademick\u00E9 nakladatelstv\u00ED CERM" . . "77;80" . "Sborn\u00EDk p\u0159\u00EDsp\u011Bvk\u016F z \u010Desko-slovensk\u00E9 konference %22EXPERIMENT `07%22" . "Fracture toughness; quasi-brittle material; three-point bending"@en . . "431383" . "Lomov\u00E1 hou\u017Eevnatost z t\u0159\u00EDbodov\u00E9ho ohybu vzork\u016F z kvazik\u0159ehk\u00FDch materi\u00E1l\u016F: Korekce vzhledem k \u0161\u00ED\u0159ce z\u00E1\u0159ezu" . "Klus\u00E1k, Jan" . "P(GA101/05/0227), P(GA103/07/1276), Z(AV0Z20410507)" . "4"^^ . . . . "Lomov\u00E1 hou\u017Eevnatost z t\u0159\u00EDbodov\u00E9ho ohybu vzork\u016F z kvazik\u0159ehk\u00FDch materi\u00E1l\u016F: Korekce vzhledem k \u0161\u00ED\u0159ce z\u00E1\u0159ezu" . . . "Ker\u0161ner, Z." . "RIV/68081723:_____/07:00094678!RIV08-AV0-68081723" . "Zkou\u0161ky konstruk\u010Dn\u00EDch materi\u00E1l\u016F pro z\u00EDsk\u00E1n\u00ED hodnot lomov\u011B-mechanick\u00FDch veli\u010Din jsou prov\u00E1d\u011Bny na tvarov\u011B r\u016Fzn\u00FDch t\u011Blesech. Mezi nejpou\u017E\u00EDvan\u011Bj\u0161\u00ED lomov\u00E9 experimenty pat\u0159\u00ED zkou\u0161ka vzork\u016F t\u0159\u00EDbodov\u00FDm ohybem. V p\u0159\u00EDpad\u011B t\u00E9to zkou\u0161ky se u\u017E\u00EDvaj\u00ED t\u011Blesa se z\u00E1\u0159ezem, kter\u00FD zaji\u0161\u0165uje iniciaci trhliny. Ukazuje se, \u017Ee na \u0161\u00ED\u0159ce tohoto z\u00E1\u0159ezu z\u00E1vis\u00ED p\u0159esnost m\u011B\u0159en\u00FDch lomov\u011B-mechanick\u00FDch parametr\u016F, nap\u0159. efektivn\u00ED lomov\u00E1 hou\u017Eevnatost \u010Di efektivn\u00ED hou\u017Eevnatost. C\u00EDlem p\u0159\u00EDsp\u011Bvku je na z\u00E1klad\u011B v\u00FDpo\u010Dt\u016F metodou kone\u010Dn\u00FDch prvk\u016F analyzovat vliv \u0161\u00ED\u0159ky z\u00E1\u0159ezu pro r\u016Fzn\u00E9 geometrie vzorku/zkou\u0161ky na iniciaci po\u010D\u00E1te\u010Dn\u00ED trhliny. Tento vliv na z\u00EDskan\u00E9 hodnoty lomov\u011B-mechanick\u00FDch parametr\u016F auto\u0159i kvantifikuj\u00ED a jsou vyslovena doporu\u010Den\u00ED pro korektn\u00ED vyhodnocen\u00ED experiment\u016F, v\u010Detn\u011B pou\u017Eiteln\u00FDch aproxima\u010Dn\u00EDch funkc\u00ED." . . "Seitl, Stanislav" . . "[D018FF78EC78]" . "2"^^ . "Lomov\u00E1 hou\u017Eevnatost z t\u0159\u00EDbodov\u00E9ho ohybu vzork\u016F z kvazik\u0159ehk\u00FDch materi\u00E1l\u016F: Korekce vzhledem k \u0161\u00ED\u0159ce z\u00E1\u0159ezu"@cs . "The paper introduce the influence of the starting notch width on a crack growth in three-point bending specimens that are the most frequently used specimens for fracture laboratory testing, especially of quasi-brittle cement-based composites. There are analyses of three geometrically different configurations of the specimens. It is shown that the values of fracture toughness obtained from the tests of specimens with larger widths of the starting notch can be overestimated. Correction functions for selected testing configurations are presented."@en . "Frant\u00EDk, P." . "Fracture toughness of quasi-brittle specimens using three-point bending test: Correction with respect to notch width"@en . . "2007-10-25+02:00"^^ . . "4"^^ .