. "State of the art of knowledge of fatigue damaging caused by a multiaxial stress with nonproportional random components is low up to now. This fact does not enable reliable dimensioning machine parts, and determining their service lives. The proposed project sets oneself the goal to remove the drawback, and, on the base of the own theoretical and experimental research, to judge critically existing procedures, and to develop own algorithms and a program for calculating fatigue lives of the complex loaded machine parts. Testing will run in modernized laboratories of both cooperating institutions with the use of computer- controlled electrohydraulic testing machines. During the whole time of the project solution, the experimental results will serve both as an information source for setting material parameters influencing fatigue life, and as a criterion of acceptability of project solutions. In the final of the project solution, a real machine part will be tested on a rig equipped by two free"@en . "The project fulfilled all aims which it resolved. Experimental works ensured a wide set of data on fatigue lives of plain and notched tube specimens when exposed to combined nonproportional random loading. The data served as a reliable base for testing h"@en . "21"^^ . "GA101/02/0043" . . . . . . . "Sou\u010Dasn\u00FD stav pozn\u00E1n\u00ED \u00FAnavov\u00E9ho poru\u0161ov\u00E1n\u00ED vyvolan\u00E9ho kombinovan\u00FDm nam\u00E1h\u00E1n\u00EDm o neproporcion\u00E1ln\u00EDch slo\u017Ek\u00E1ch s\u00A0n\u00E1hodn\u00FDm pr\u016Fb\u011Bhem je dosud na n\u00EDzk\u00E9 \u00FArovni. To neumo\u017E\u0148uje spolehliv\u011B dimenzovat strojn\u00ED \u010D\u00E1sti a stanovovat jejich \u017Eivotnost. Navrhovan\u00FD projekt si proto klade za c\u00EDl tento nedostatek odstranit a na z\u00E1klad\u011B vlastn\u00EDho teoretick\u00E9ho i experiment\u00E1ln\u00EDho v\u00FDzkumu kriticky posoudit st\u00E1vaj\u00EDc\u00ED postupy a zpracovat vlastn\u00ED algoritmy a programov\u00FD syst\u00E9m pro v\u00FDpo\u010Dty \u00FAnavov\u00E9 \u017Eivotnosti takto slo\u017Eit\u011B zat\u011B\u017Eovan\u00FDch strojn\u00EDch d\u00EDl\u016F. Zkou\u0161ky prob\u011Bhnou v\u00A0modernizovan\u00FDch zku\u0161ebn\u00E1ch spolupracuj\u00EDc\u00EDch instituc\u00ED na po\u010D\u00EDta\u010Dov\u011B \u0159\u00EDzen\u00FDch elektrohydraulick\u00FDch zat\u011B\u017Eovac\u00EDch stroj\u00EDch. B\u011Bhem cel\u00E9ho \u0159e\u0161en\u00ED projektu budou v\u00FDsledky experiment\u016F slou\u017Eit jako zdroj informac\u00EDpro nastavov\u00E1n\u00ED materi\u00E1lov\u00FDch parametr\u016F, ker\u00E9 ovliv\u0148uj\u00ED \u017Eivotnost, i jako kriterium vhodnosti postupu \u0159e\u0161en\u00ED. V\u00A0z\u00E1v\u011Bru \u0159e\u0161en\u00ED bude zkou\u0161ena re\u00E1ln\u00E1 sou\u010D\u00E1st na stanovi\u0161ti se dv\u011Bma voln\u00FDmi v\u00E1lci, jimi\u017E bude vyvol\u00E1v\u00E1na ona slo\u017Eit\u00E1 napjatost. Zn\u00E1m\u00E9 zat\u011B\u017Eovac\u00ED" . . . . "Vliv n\u00E1hodn\u00E9ho v\u00EDceos\u00E9ho neproporcion\u00E1ln\u00EDho nam\u00E1h\u00E1n\u00ED na \u00FAnavovou \u017Eivotnost strojn\u00EDch \u010D\u00E1st\u00ED" . . "The influence of a random multiaxial nonproportional stress on the fatigue life of machine parts"@en . . "2008-06-02+02:00"^^ . . "1"^^ . "Neuvedeno."@en . . . "1"^^ . . . . . "Projekt splnil v\u0161echny c\u00EDle, kter\u00E9 si v n\u00E1vrhu p\u0159edsevzal. Experiment\u00E1ln\u00ED pr\u00E1ce zajistily rozs\u00E1hl\u00FD soubor \u00FAdaj\u016F o \u00FAnavov\u00FDch \u017Eivotnostech hladk\u00FDch i vrubovan\u00FDch trubkov\u00FDch vzork\u016F p\u0159i kombinovan\u00E9m neproporcion\u00E1ln\u00EDm n\u00E1hodn\u00E9m zat\u011B\u017Eov\u00E1n\u00ED. Ty slou\u017Eily jako spo"@cs . . "http://www.isvav.cz/projectDetail.do?rowId=GA101/02/0043"^^ . . "21"^^ . "0"^^ .