. "80-86246-27-2" . "\u00DAstav teoretick\u00E9 a aplikovan\u00E9 mechaniky AV \u010CR" . . . . "Vliv geometrie zku\u0161ebn\u00EDho t\u011Blesa na plastick\u00E9 zav\u00EDr\u00E1n\u00ED trhliny"@cs . . "Vliv geometrie zku\u0161ebn\u00EDho t\u011Blesa na plastick\u00E9 zav\u00EDr\u00E1n\u00ED trhliny" . "The influence of specimen geometry on plasticity induced crack closure"@en . "Svratka" . "plasticity induced crack closure; crack propagation; test speciment geometry"@en . . . . "8"^^ . "Vliv geometrie zku\u0161ebn\u00EDho t\u011Blesa na plastick\u00E9 zav\u00EDr\u00E1n\u00ED trhliny" . "N\u00E1hl\u00EDk, Lubo\u0161" . . . . "506433" . "2006-05-15+02:00"^^ . . "paper no. 319" . . "The influence of specimen geometry on plasticity induced crack closure"@en . "Z experiment\u00E1ln\u00EDch prac\u00ED vypl\u00FDv\u00E1, \u017Ee geometrie t\u011Blesa m\u00E1 nezanedbateln\u00FD vliv na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny. Ukazuje se, \u017Ee vliv geometrie m\u016F\u017Ee b\u00FDt r\u016Fzn\u00FD v z\u00E1vislosti na velikosti vn\u011Bj\u0161\u00EDho zat\u011B\u017Eov\u00E1n\u00ED respektive velikosti plastick\u00E9 z\u00F3ny p\u0159ed \u010Delem trhliny. V ur\u010Dit\u00E9 \u010D\u00E1sti zat\u011B\u017Eovac\u00EDho spektra tedy bude hr\u00E1t v\u00FDznamnou roli plasticky indukovan\u00E9 zav\u00EDr\u00E1n\u00ED trhliny. Demonstrovat vliv constraintu na zav\u00EDr\u00E1n\u00ED trhliny je hlavn\u00EDm c\u00EDlem t\u00E9to pr\u00E1ce. Na t\u011Blesech r\u016Fzn\u00E9 geometrie, odpov\u00EDdaj\u00EDc\u00ED experiment\u00E1ln\u00EDm vzork\u016Fm, je sledov\u00E1n vliv constraintu (kvantifikovan\u00E9ho hodnotou T-nap\u011Bt\u00ED) na zav\u00EDr\u00E1n\u00ED trhliny. Za pomoci efektivn\u00ED hodnoty faktoru intenzity nap\u011Bt\u00ED m\u016F\u017Eeme odhadnout v\u00FDsledn\u00FD efekt v\u0161ech t\u011Bchto vliv\u016F na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny. V\u00FDpo\u010Dty jsou provedeny na b\u00E1zi kone\u010Dn\u00FDch prvk\u016F. Pomoc\u00ED t\u011Bchto simulac\u00ED m\u016F\u017Eeme l\u00E9pe porozum\u011Bt a kvantifikovat vliv constraintu na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny a p\u0159isp\u011Bt tak k v\u011Brohodn\u011Bj\u0161\u00EDmu p\u0159enosu laboratorn\u00EDch dat na skute\u010Dn\u00E9 konstrukce."@cs . . "P(GP106/04/P084), P(GP106/06/P239), Z(AV0Z20410507)" . "2"^^ . . "Z experiment\u00E1ln\u00EDch prac\u00ED vypl\u00FDv\u00E1, \u017Ee geometrie t\u011Blesa m\u00E1 nezanedbateln\u00FD vliv na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny. Ukazuje se, \u017Ee vliv geometrie m\u016F\u017Ee b\u00FDt r\u016Fzn\u00FD v z\u00E1vislosti na velikosti vn\u011Bj\u0161\u00EDho zat\u011B\u017Eov\u00E1n\u00ED respektive velikosti plastick\u00E9 z\u00F3ny p\u0159ed \u010Delem trhliny. V ur\u010Dit\u00E9 \u010D\u00E1sti zat\u011B\u017Eovac\u00EDho spektra tedy bude hr\u00E1t v\u00FDznamnou roli plasticky indukovan\u00E9 zav\u00EDr\u00E1n\u00ED trhliny. Demonstrovat vliv constraintu na zav\u00EDr\u00E1n\u00ED trhliny je hlavn\u00EDm c\u00EDlem t\u00E9to pr\u00E1ce. Na t\u011Blesech r\u016Fzn\u00E9 geometrie, odpov\u00EDdaj\u00EDc\u00ED experiment\u00E1ln\u00EDm vzork\u016Fm, je sledov\u00E1n vliv constraintu (kvantifikovan\u00E9ho hodnotou T-nap\u011Bt\u00ED) na zav\u00EDr\u00E1n\u00ED trhliny. Za pomoci efektivn\u00ED hodnoty faktoru intenzity nap\u011Bt\u00ED m\u016F\u017Eeme odhadnout v\u00FDsledn\u00FD efekt v\u0161ech t\u011Bchto vliv\u016F na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny. V\u00FDpo\u010Dty jsou provedeny na b\u00E1zi kone\u010Dn\u00FDch prvk\u016F. Pomoc\u00ED t\u011Bchto simulac\u00ED m\u016F\u017Eeme l\u00E9pe porozum\u011Bt a kvantifikovat vliv constraintu na rychlost \u0161\u00ED\u0159en\u00ED \u00FAnavov\u00E9 trhliny a p\u0159isp\u011Bt tak k v\u011Brohodn\u011Bj\u0161\u00EDmu p\u0159enosu laboratorn\u00EDch dat na skute\u010Dn\u00E9 konstrukce." . "[62CF116569C8]" . "2"^^ . "RIV/68081723:_____/06:00053372!RIV07-AV0-68081723" . . . "The paper investigates the effect of in-plane constraint on plasticity induced crack closure under conditions of small scale yielding. The growth of a sharp straight crack in middle tension specimen (MT) and compact tension (CT) specimen, under constant amplitude of cyclic loading, was analyzed with help of finite element method. The material constitutive behavior was represented by a purely kinematic hardening law. Obtained results are discussed from point of view of the influence of T-stress on plasticity induced crack closure. Significant difference between opening values for CT and MT specimens was found under conditions of plane strain."@en . "Vliv geometrie zku\u0161ebn\u00EDho t\u011Blesa na plastick\u00E9 zav\u00EDr\u00E1n\u00ED trhliny"@cs . "Huta\u0159, Pavel" . "Engineering mechanics 2006" . . "RIV/68081723:_____/06:00053372" . . . "Praha" .