. "Teoreticko-experiment\u00E1ln\u00ED anal\u00FDza procesu po\u0161kozov\u00E1n\u00ED a v\u00FDvoj metodiky pro odhadov\u00E1n\u00ED \u00FAnavov\u00E9 \u017Eivotnosti slo\u017Eit\u011B nam\u00E1han\u00FDch sou\u010D\u00E1st\u00ED" . . "29"^^ . . "29"^^ . . "2005-01-01+01:00"^^ . . . "fatigue; damage; combined stress; theory; experiment"@en . . . " theory" . " damage" . "GA101/05/0199" . . "Vytvo\u0159en\u00ED datab\u00E1ze experiment\u00E1ln\u00EDch v\u00FDsledk\u016F a dopln\u011Bn\u00ED poznatk\u016F o \u00FAnavov\u00E9m chov\u00E1n\u00ED kovov\u00FDch vzork\u016F pro harmonick\u00E9 zat\u011B\u017Eov\u00E1n\u00ED.Rozbor parametr\u016F po\u0161kozen\u00ED na kritick\u00E9 rovin\u011B p\u0159i obecn\u00E9m (v\u00EDceslo\u017Ekov\u00E9m) nam\u00E1h\u00E1n\u00ED.Experiment\u00E1ln\u00ED \u00FAnavov\u00E9 zkou\u0161ky pro kombinovan"@cs . "Navzdory zna\u010Dn\u00E9mu pokroku v \u0159e\u0161en\u00ED problematiky \u00FAnavov\u00E9 \u017Eivotnosti strojn\u00EDch \u010D\u00E1st\u00ED je probl\u00E9m kumulace \u00FAnavov\u00E9ho po\u0161kozov\u00E1n\u00ED p\u0159i slo\u017Eit\u00E9m kombinovan\u00E9m nam\u00E1h\u00E1n\u00ED st\u00E1le je\u0161t\u011B m\u00E1lo prob\u00E1dan\u00FD. Navrhovan\u00FD projekt si klade za c\u00EDl naj\u00EDt na z\u00E1klad\u011B podrobn\u00E9 teoretick\u00E9, numerick\u00E9 a experiment\u00E1ln\u00ED anal\u00FDzy spolehliv\u00FD zp\u016Fsob odhadov\u00E1n\u00ED r\u016Fstu \u00FAnavov\u00E9ho po\u0161kozen\u00ED p\u0159i kombinovan\u00E9m neproporcion\u00E1ln\u00EDm dynamick\u00E9m zat\u011B\u017Eov\u00E1n\u00ED konstruk\u010Dn\u00EDch uzl\u016F. \u00DAsp\u011B\u0161n\u00E9 vy\u0159e\u0161en\u00ED tohoto probl\u00E9mu a jeho programov\u00E1 realizace p\u0159inese budouc\u00EDm u\u017Eivatel\u016Fm z pr\u016Fmyslu mohutn\u00FD n\u00E1stroj pro navrhov\u00E1n\u00ED a ov\u011B\u0159ov\u00E1n\u00ED nov\u00FDch konstrukc\u00ED z hlediska \u00FAnavov\u00E9 \u017Eivotnosti slo\u017Eit\u011B nam\u00E1han\u00FDch \u010D\u00E1st\u00ED. za provozu. Jedn\u00EDm z kl\u00ED\u010Dov\u00FDch c\u00EDl\u016F grantu je formulace a ov\u011B\u0159en\u00ED nov\u00E9ho multiaxi\u00E1ln\u00EDho elasto-plastick\u00E9hokrit\u00E9ria pro ur\u010Den\u00ED nam\u00E1h\u00E1n\u00ED a po\u0161kozen\u00ED na kritick\u00E9 rovin\u011B. Bude vych\u00E1zet z v\u00FDsledk\u016F v\u00FDpo\u010Dt\u016F pomoc\u00ED MKP pro jednotliv\u00E9 zat\u011B\u017Eovac\u00ED stavy p\u0159\u00EDpadn\u011B pro n\u00E1hodn\u00E9 zat\u011B\u017Eov\u00E1n\u00ED ze zjednodu\u0161en\u00E9 analytick\u00E9 formule. Dal\u0161\u00EDm d\u016Fle\u017Eit\u00FDm krokem \u0159e\u0161en\u00ED je formulovat" . "fatigue" . "http://www.isvav.cz/projectDetail.do?rowId=GA101/05/0199"^^ . "Assembling of database of experimental results and a knowledge replenishment on fatigue behavior of metal specimens under harmonic loading.An analysis of damage parameters in critical plane under general (multiaxial) loading.Experimental fatigue tests un"@en . . "1"^^ . "Theoretic and experimental analysis of a damaging process and development of a methodology for estimating the fatigue lives of complex stressed parts"@en . "1"^^ . . "2007-05-02+02:00"^^ . . "0"^^ . . . "2007-12-31+01:00"^^ . "2008-12-16+01:00"^^ . "Problems of fatigue damage cumulation under complex combined stress in machine parts are still less explored, in spite of a considerable progress in solution of material fatigue. The planned project sets oneself a task to find a reliable way of estimating a grow of fatigue damage in substructures exposed to combined non-proportional dynamic loading basing on detailed theoretical, numerical, and experimental analyses. A successful solution of the problem and its program implementation will offerfuture industrial users a mighty tool for designing and verification of new structures from the point of view of fatigue lives of complex stressed parts in service. One of the main goals of this project is a formulation and verification of a new multiaxial elasto-plastic criteria for stress-strain and damage determination on the critical plane. The criteria will be based on FEM calculations used for separate loading cases or in case of stochastic loading on analytical formula. Next fundamental"@en . " combined stress" . . . . . . .