"Anal\u00FDza lomov\u00E9ho chov\u00E1n\u00ED v\u00EDcevrstv\u00FDch trubek"@cs . "RIV/68081723:_____/07:00090871" . "Anal\u00FDza lomov\u00E9ho chov\u00E1n\u00ED v\u00EDcevrstv\u00FDch trubek"@cs . "Two-layer pipes made of PE 100 and PPH were chosen for the present study. The PPH pipe provided a protective layer for the PE 100 pipe. The relevant numerical model based on the finite element method (FEM) was used to calculate the stress distribution in the pipe and the corresponding fracture mechanics parameters were estimated. Two crack configurations (inside and outside cracks) were analysed numerically. The influence of the Young modulus of both components on possible crack propagation is discussed. From the experimental point of view, the compact tension (CT), single edge notch bending (SENB) and C shaped (C) specimens taken from the pipe were tested under a static load and at different temperatures. As a fracture parameter the J \u2013 integral characteristic and its dependence on stable crack growth, the crack orientation and temperature were chosen. A correlation between the experimental and theoretical results was found." . . . . . "Analysis of Fracture Behaviour of Multilayer Pipes" . "207;212" . "6"^^ . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . "5" . "Plastics Rubber and Composites" . "Two-layer pipes made of PE 100 and PPH were chosen for the present study. The PPH pipe provided a protective layer for the PE 100 pipe. The relevant numerical model based on the finite element method (FEM) was used to calculate the stress distribution in the pipe and the corresponding fracture mechanics parameters were estimated. Two crack configurations (inside and outside cracks) were analysed numerically. The influence of the Young modulus of both components on possible crack propagation is discussed. From the experimental point of view, the compact tension (CT), single edge notch bending (SENB) and C shaped (C) specimens taken from the pipe were tested under a static load and at different temperatures. As a fracture parameter the J \u2013 integral characteristic and its dependence on stable crack growth, the crack orientation and temperature were chosen. A correlation between the experimental and theoretical results was found."@en . . . "36" . . "Analysis of Fracture Behaviour of Multilayer Pipes"@en . . "Analysis of Fracture Behaviour of Multilayer Pipes" . . "P(GA106/07/1284), Z(AV0Z20410507)" . "Kn\u00E9sl, Zden\u011Bk" . . "Analysis of Fracture Behaviour of Multilayer Pipes"@en . . "3"^^ . "Je analyzov\u00E1no lomov\u00E9 chov\u00E1n\u00ED dvouvrstv\u00FDch trubek zhotoven\u00FDch z plast\u016F. Nosn\u00E1 \u010D\u00E1st trubky je zhotovena z PE 100 a je opat\u0159ena ochrannou vrstvou z PPH. Na z\u00E1klad\u011B numerick\u00E9ho modelu bylo metodou kone\u010Dn\u00FDch prvk\u016F vypo\u010Dteno rozd\u011Blen\u00ED nap\u011Bt\u00ED v trubce a odpov\u00EDdaj\u00EDc\u00ED lomov\u011B-mechanick\u00E9 parametry. Byly uva\u017Eov\u00E1ny dv\u011B konfigurace trhlin (vn\u011Bj\u0161\u00ED a vnit\u0159n\u00ED). Byl studov\u00E1n vliv Youngova modulu obou materi\u00E1l\u016F na mo\u017En\u00E9 \u0161\u00ED\u0159en\u00ED trhlin v trubk\u00E1ch a jejich n\u00E1sledn\u00E9 poru\u0161en\u00ED. Byla provedena m\u011B\u0159en\u00ED kritick\u00FDch hodnot lomov\u00FDch parametr\u016F trubky. Jako zku\u0161ebn\u00ED t\u011Blesa byly pou\u017Eity modifikovan\u00E9 vzorky pro t\u0159\u00EDbodov\u00FD ohyb, kompaktn\u00ED vzorky pro zat\u00ED\u017Een\u00ED tahem a C \u2013 t\u011Blesa. Experimenty byly provedeny pro r\u016Fzn\u00E9 typy zat\u011B\u017Eov\u00E1n\u00ED a p\u0159i r\u016Fzn\u00FDch teplot\u00E1ch. Byly vyhodnoceny v\u00FDsledky pro lomovou hou\u017Eevnatost pou\u017Eit\u00FDch materi\u00E1l\u016F a diskutov\u00E1na jejich pou\u017Eitelnost pro odhad provozn\u00ED \u017Eivotnosti sledovan\u00FDch trubek."@cs . "multi-layer pipes"@en . "[18301C506188]" . . . "RIV/68081723:_____/07:00090871!RIV08-AV0-68081723" . "Vlach, B." . "Nezbedov\u00E1, E." . . "409472" . "1"^^ . . "1465-8011" .