. . " multi-layer pipes" . . . . . . . "36"^^ . "36"^^ . "Studium lomov\u00E9ho chov\u00E1n\u00ED kompozitn\u00EDch trubek z polyolef\u00EDn\u016F" . "Je vy\u0161et\u0159ov\u00E1no po\u0161kozen\u00ED v\u00EDcevrstv\u00FDch komer\u010Dn\u011B pou\u017E\u00EDvan\u00FDch plastov\u00FDch trubek s dokonalou adhez\u00ED jednotliv\u00FDch materi\u00E1l\u016F. Jako relevantn\u00ED parametr charakterizuj\u00EDc\u00ED lomov\u00E9 chov\u00E1n\u00ED trubkov\u00FDch syst\u00E9m\u016F p\u0159i pomal\u00E9m r\u016Fstu trhliny byla zvolena lomov\u00E1 hou\u017Eevnatost"@cs . "http://www.isvav.cz/projectDetail.do?rowId=GA101/05/0227"^^ . "Damage of multilayer commercial plastic pipes with dimensional integrated protective surfaces is investigated. The fracture toughness value is chosen as relevant parameter for fracture assessment of the pipes systems damaged by slow crack growth. The lim"@en . "2005-01-01+01:00"^^ . . . "GA101/05/0227" . . "polyolephine; multi-layer pipes; fracture mechanics; finite element method"@en . "Fracture Behaviour of Polyolephine Composite\u00B4s Pipes"@en . "0"^^ . . "Projekt sm\u011B\u0159uje do oblasti studia lomov\u00E9ho chov\u00E1n\u00ED polyolef\u00EDn\u016F ur\u010Den\u00FDch k v\u00FDrob\u011B kompozitn\u00EDch trubek. C\u00EDlem projektu je studium vz\u00E1jemn\u00FDch vztah\u016F mezi podm\u00EDnkami zat\u011B\u017Eov\u00E1n\u00ED (teplota a rychlost zat\u011B\u017Eov\u00E1n\u00ED p\u0159\u00EDpadn\u011B napjatost) a procesy poru\u0161ov\u00E1n\u00ED z hlediska nadmolekul\u00E1rn\u00ED struktury polyolef\u00EDn\u016F. V r\u00E1mci projektu budou modifikov\u00E1ny laboratorn\u00ED testy vyu\u017E\u00EDvaj\u00EDc\u00ED p\u0159\u00EDstup lomov\u00E9 mechaniky pro kompozitn\u00ED trubky z polyolef\u00EDn\u016F a korelov\u00E1ny s v\u00FDpo\u010Dtov\u00FDm modelem. Tyto v\u00FDsledky umo\u017En\u00ED stanovit slo\u017Een\u00ED materi\u00E1lu s ohledem na optim\u00E1ln\u00ED mechanick\u00E9 vlastnosti fin\u00E1ln\u00EDho v\u00FDrobku - trubky." . . "2007-12-31+01:00"^^ . "1"^^ . "2"^^ . "2007-05-02+02:00"^^ . " fracture mechanics" . "The project leads to the field of fracture mechanics study of polyolephines using for composite's pipes. The main goal of the project is to study the relationships between loading conditions (temperature, testing speed and stress state respectively) and failure processes from the stand point of supermolecular structure of polyolephines. In the scope of the project the laboratory tests utilising the fracture mechanics approach will bee modified for the polyolephine composite's pipes. The correlation between the experimental data and results of relevant numerical model will be presented. The results enable to estimate the material's composition with respect to the optimal mechanical properties of final product - pipe."@en . . . . . . "polyolephine" . . "2008-12-16+01:00"^^ .