. "Prague" . "2"^^ . "Vliv \u0161\u00ED\u0159ky z\u00E1\u0159ezu na lomovou odezvu oh\u00FDban\u00FDch betonov\u00FDch vzork\u016F"@cs . "An influence of the test specimen\u2019s preparation \u2013 shape and width of a stress concentrator \u2013 on the values of parameters of nonlinear fracture models of quasi-brittle cement-based composites is analyses in the paper presented. The parameters \u2013 e.g. effective crack extension, effective fracture toughness, and specific fracture energy \u2013 can be calculated from results of loading tests performed on notched three point bend specimens. The effects are investigated by means of a comparison of numerically simulated fracture process in the cracked specimen with the specimens with the double V-notch. The numerical simulations of the fracture according to the linear elastic fracture mechanics were performed by using finite element method programs (ANSYS, and FRANC2D). The influence on the load-carrying capacity and the initial compliance of the cracked specimen are introduced and discussed."@en . "Influence of notch width on fracture response of bended concrete specimens"@en . . . . "Influence of notch width on fracture response of bended concrete specimens"@en . "P(GA103/08/0963), Z(AV0Z20410507)" . "Engineering Mechanics 2008" . . . . . "Notch geometry; 3PB specimens; fracture parameters; cement-based composites"@en . . . "Influence of notch width on fracture response of bended concrete specimens" . "8"^^ . . "Svratka" . "Vliv \u0161\u00ED\u0159ky z\u00E1\u0159ezu na lomovou odezvu oh\u00FDban\u00FDch betonov\u00FDch vzork\u016F"@cs . "[A5DB0C7B03A6]" . . . "RIV/68081723:_____/08:00317569!RIV09-AV0-68081723" . . "An influence of the test specimen\u2019s preparation \u2013 shape and width of a stress concentrator \u2013 on the values of parameters of nonlinear fracture models of quasi-brittle cement-based composites is analyses in the paper presented. The parameters \u2013 e.g. effective crack extension, effective fracture toughness, and specific fracture energy \u2013 can be calculated from results of loading tests performed on notched three point bend specimens. The effects are investigated by means of a comparison of numerically simulated fracture process in the cracked specimen with the specimens with the double V-notch. The numerical simulations of the fracture according to the linear elastic fracture mechanics were performed by using finite element method programs (ANSYS, and FRANC2D). The influence on the load-carrying capacity and the initial compliance of the cracked specimen are introduced and discussed." . "\u00DAstav termomechaniky AV \u010CR" . "Seitl, Stanislav" . . "2008-05-12+02:00"^^ . "RIV/68081723:_____/08:00317569" . . "Influence of notch width on fracture response of bended concrete specimens" . "372196" . "4"^^ . "978-80-87012-11-6" . "Ker\u0161ner, Z." . . "Vesel\u00FD, V." . . . "Klus\u00E1k, Jan" . . "V p\u0159\u00EDsp\u011Bvku je analyzov\u00E1n Vliv tvaru a hlouby z\u00E1\u0159ezu ve zku\u0161ebn\u00EDch t\u011Blesech kvazi- k\u0159ehk\u00FDch cementov\u00E9ho kompozitu na hodnoty neline\u00E1rn\u00ED lomov\u00FDch parametr\u016F. Parametry jako efektivn\u00ED prodlou\u017Een\u00ED trhliny, efektivn\u00ED lomov\u00E1 hou\u017Eevnatost specifick\u00E1 lomov\u00E1 energie lze z\u00EDskat ze zat\u011B\u017Eovac\u00EDho diagramu pro t\u0159\u00EDbodov\u00FD ohyb. Efekt je studov\u00E1n pou\u017Eit\u00EDm kone\u010Dnoprvkov\u00E9 anal\u00FDzy lomov\u00E9ho procesu na t\u011Blese pro t\u0159\u00EDbodov\u00FD ohyb se z\u00E1\u0159ezem ve tvaru dvou pravo\u00FAhl\u00FDch vrub\u016F. Vliv na zat\u011B\u017Eovac\u00ED kapacitu a na po\u010D\u00E1te\u010Dn\u00ED iniciaci trhliny je p\u0159edstaven a diskutov\u00E1"@cs .