"2"^^ . "44"^^ . . "P\u0159enositelnost charakteristik lomov\u00E9 hou\u017Eevnatosti z hlediska hodnocen\u00ED integrity komponent s defekty" . "Projekt byl orientov\u00E1n do velice aktu\u00E1ln\u00ED oblasti z\u00E1konitost\u00ED k\u0159ehk\u00E9ho a tv\u00E1rn\u00E9ho poru\u0161en\u00ED ocel\u00ED s ohledem na p\u0159edikci tranzitn\u00EDho chov\u00E1n\u00ED materi\u00E1lu vzhledem k defekt\u016Fm a koncentr\u00E1tor\u016Fm nap\u011Bt\u00ED s uv\u00E1\u017Een\u00EDm mikromechanick\u00FDch deterministick\u00FDch a stochastick\u00FD"@cs . "44"^^ . . "0"^^ . "Projekt je orientov\u00E1n na anal\u00FDzu z\u00E1konitost\u00ED k\u0159ehk\u00E9ho a tv\u00E1rn\u00E9ho poru\u0161en\u00ED ocel\u00ED s ohledem na predikci transitn\u00EDho chov\u00E1n\u00ED sou\u010D\u00E1st\u00ED a konstrukc\u00ED s defekty a koncentr\u00E1tory nap\u011Bt\u00ED p\u0159i aplikaci mikromecha- nistick\u00FDch deterministick\u00FDch a stochastick\u00FDch model\u016Fporu\u0161en\u00ED. Podstatou projektu je m\u011B\u0159en\u00ED lomov\u00E9 hou\u017Eevnatosti na tzv. mal\u00FDch vzorc\u00EDch, p\u0159enos takto z\u00EDskan\u00FDch hodnot na zku\u0161ebn\u00ED t\u011Blesa standardn\u00EDch rozm\u011Br\u016F a d\u00E1le na re\u00E1ln\u00E9 komponenty a konstrukce. P\u0159i \u0159e\u0161en\u00ED projektu se navazuje na poznatky grantu GA\u010CR 101-97-1045, zam\u011B\u0159en\u00E9ho na lok\u00E1ln\u00ED p\u0159\u00EDstup a b\u011B\u017E\u00EDc\u00EDho grantu NATO SfP \u010D. 972655. C\u00EDlem projektu je testov\u00E1n\u00ED a v\u00FDvoj tzv. %22fracture toughness scaling%22 model\u016F, ker\u00E9 vych\u00E1zej\u00ED ze znalost\u00ED mikromechanism\u016F poru\u0161ov\u00E1n\u00ED a umo\u017E\u0148uj\u00ED n\u00E1m tuto transformaci prov\u00E9st.Tyto modely jsou zalo\u017Een\u00E9 na pravd\u011Bpodobnost\u00EDch metod\u00E1ch a parametrech jako je Weibullovo nap\u011Bt\u00ED (lok\u00E1ln\u00ED p\u0159\u00EDstup), respektiv\u011B na velikosti kritick\u00E9 oblasti (nap\u0159. plastick\u00E1 z\u00F3na) p\u0159ed \u010Delem trhliny. P\u0159i studiu bude pou\u017Eita lit\u00E1 ocel, kter\u00E1 je navr\u017Eena n" . . . . . . "The purpose of the project is to evaluate the brittle and ductile fracture of components with cracks and the stress concentrators with respect to transition behavior on the micromechanistics deterministic and stochastic models of failure. The experimentadata from laboratory and finite elements method are the base tools. The principle of this project is measurement of a fracture toughness on the %22small specimens%22 The project concludes with an application of the mentioned models to predict the material behavior on the standard geometry and components and structures. The solution of this project concurs of the project results of the grant of the Grant Agency of the Czech Republic %22Local approach for the assessment for brittle fracture of components%22 andrunning project NATO SfP %22Fracture resistance of steels for containers of spent nuclear fuel No. 972655%22. The goal is to examine and develop %22fracture toughness scaling models%22 based on the micromechanistics treatment to predict constraint and size"@en . . . . . "The transferability of fracture toughness characteristics from point a view of integrity of components with defects"@en . . . "GA101/00/0170" . "http://www.isvav.cz/projectDetail.do?rowId=GA101/00/0170"^^ . . "2008-05-19+02:00"^^ . . . . . "1"^^ . "Neuvedeno."@en .