. . . . "668"^^ . "0"^^ . . "\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0 Projekt se zab\u00FDv\u00E1 problematikou zpracov\u00E1n\u00ED tenk\u00FDch plech\u016F p\u0159i vy\u0161\u0161\u00EDch deforma\u010Dn\u00EDch rychlostech. C\u00EDlem projektu je u vybran\u00FDch materi\u00E1l\u016F popsat vliv rychlosti deformace a historie tv\u00E1\u0159en\u00ED na kone\u010Dn\u00E9 u\u017Eitkov\u00E9 vlastnosti lisovan\u00FDch d\u00EDl\u016F. Na vzorc\u00EDch pro zji\u0161\u0165ov\u00E1n\u00ED diagram\u016F mezn\u00EDch p\u0159etvo\u0159en\u00ED je realizov\u00E1na plastick\u00E1 deformace. Po jej\u00EDm proveden\u00ED se na vzorc\u00EDch dosahuje p\u0159edem definovan\u00E9ho mezn\u00EDho stavu vysokou rychlost\u00ED deformace. Mezn\u00EDho stavu je dosa\u017Eeno ve stejn\u00E9m, nebo opa\u010Dn\u00E9m smyslu deformace, ne\u017E byla provedena deformace p\u0159edchoz\u00ED. Prom\u011B\u0159en\u00EDm velikost\u00ED mezn\u00EDch deformac\u00ED se z\u00EDskaj\u00ED diagramy mezn\u00EDch p\u0159etvo\u0159en\u00ED ovlivn\u011Bn\u00E9 p\u0159edchoz\u00EDm tv\u00E1\u0159en\u00EDm. V pr\u00E1ci jsou t\u00E9\u017E zji\u0161\u0165ov\u00E1ny diagramy mezn\u00EDch p\u0159etvo\u0159en\u00ED v rozmez\u00ED rychlost\u00ED od 10mm/min do 70 km/hod. Z takto z\u00EDskan\u00FDch v\u00FDsledk\u016F pak sestavit obecn\u00E9 vztahy pro popis vlivu rychlosti a historie tv\u00E1\u0159en\u00ED na kone\u010Dn\u00E9 u\u017Eitkov\u00E9 vlastnosti fin\u00E1ln\u00EDch v\u00FDlisk\u016F."@cs . "Strain rate; Forming; Metal Sheets"@en . "\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0\u00A0 This project deals with thin sheet processing problems by higher deformation speeds. The aim of this project is to describe for chosen materials the deformation speed and forming history influence for the final utility properties of moulded parts. The plastic deformation is realised on the samples for forming limiting diagrams identification. After the plastic deformation is done we reach the defined limiting state by high speed deformation. The limiting state is reached in the same or contrary meaning of deformation then the first was done. By gauging of size of limiting deformations we get the forming limiting diagrams influenced by previous forming. In this work there were also finding the forming limiting diagrams in the range of speed between 10mm/min to 70km/hod. Then from these results compose common relations for describing the influence of speed and forming history for final utility properties of final stamping."@en . "1"^^ . "668"^^ . . . "Rozvoj deformace a mezn\u00ED stavy tenk\u00FDch plech\u016F p\u0159i vy\u0161\u0161\u00EDch deforma\u010Dn\u00EDch rychlostech"@cs . "20"^^ . "Development and the limit states of the thin metal sheets by the higher strain rate"@en . "20"^^ . . . "2007-01-01+01:00"^^ . "2009-12-31+01:00"^^ . . "0"^^ .