"43210" . . "724863" . "RIV/62156489:43210/00:00089975" . "[F7A11B9588E0]" . . "K\u0159iv\u00E1nek, Ivo" . . "Wood Research" . "Odraz nap\u011B\u0165ov\u00E9ho pulzu na rozhran\u00ED mezi elastickou ty\u010D\u00ED a d\u0159ev\u011Bn\u00FDm blokem"@cs . "1336-4561" . "12"^^ . . . . "Odraz nap\u011B\u0165ov\u00E9ho pulzu na rozhran\u00ED mezi elastickou ty\u010D\u00ED a d\u0159ev\u011Bn\u00FDm blokem"@cs . "Reflection of stress pulse at the interface between elastic bar and wood block" . "Hor\u00E1\u010Dek, Petr" . . "anisotropy; sress pulse"@en . "SK - Slovensk\u00E1 republika" . . "Buchar, Jaroslav" . . . . "The problem of stress propagation in the steel bar which is supported by a wood block is studied. First of all the numerical simulation has been performed using of LS DYNA 3D finite element code. The wood has been taken as an orthotropic continuum . The face of the block which is in contact with the bar has been subsequently chosen to be normal to L,R and T . The main attention has been focused on the evaluation of the reflection coefficient of the stress pulse at the interface between the rod and the wood block. Six different woods has been considered. These coefficients have been compared with the coefficients determined for the two semi - infinite rods . The results of numerical computation have been strengthened by the experiment performed with the blocks made from spruce wood. The influence of the block geometry on the reflection coefficient has been also studied." . "Reflection of stress pulse at the interface between elastic bar and wood block"@en . "Reflection of stress pulse at the interface between elastic bar and wood block" . . "45" . "Reflection of stress pulse at the interface between elastic bar and wood block"@en . "The problem of stress propagation in the steel bar which is supported by a wood block is studied. First of all the numerical simulation has been performed using of LS DYNA 3D finite element code. The wood has been taken as an orthotropic continuum . The face of the block which is in contact with the bar has been subsequently chosen to be normal to L,R and T . The main attention has been focused on the evaluation of the reflection coefficient of the stress pulse at the interface between the rod and the wood block. Six different woods has been considered. These coefficients have been compared with the coefficients determined for the two semi - infinite rods . The results of numerical computation have been strengthened by the experiment performed with the blocks made from spruce wood. The influence of the block geometry on the reflection coefficient has been also studied."@en . "RIV/62156489:43210/00:00089975!RIV06-GA0-43210___" . . "35;46" . "Bylo studov\u00E1no \u0161\u00ED\u0159en\u00ED nap\u011B\u0165ov\u00E9 vlny v ocelov\u00E9 ty\u010Di podp\u00EDran\u00E9 d\u0159ev\u011Bn\u00FDm blokem. Nejd\u0159\u00EDve byla provedena numerick\u00E1 simulace probl\u00E9mu pomoc\u00ED LS DYNA 3D. D\u0159evo bylo uva\u017Eov\u00E1na jako ortotropn\u00ED materi\u00E1l. \u010Celo bloku, kter\u00E9 bylo v kontaktu s ty\u010D\u00ED bylo zvoleno tak, aby bylo kolm\u00E9 k rovin\u00E1m L, R a T. Hodnoceno bylo 6 r\u016Fzn\u00FDch druh\u016F d\u0159ev. Koeficienty nap\u011B\u0165ov\u00E9ho pulzu byly srovn\u00E1ny s koeficienty stanoven\u00FDmi pro polonekone\u010Dnou ty\u010D. Numerick\u00E9 simulace byly podpo\u0159eny experimenty proveden\u00FDmi se smrkov\u00FDm d\u0159evem. Sledov\u00E1n byl tak\u00E9 vliv geometrie bloku."@cs . "3"^^ . . . . "P(GA106/99/1703)" . "3"^^ .