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Statements

Subject Item
n2:RIV%2F62156489%3A43210%2F00%3A00089975%21RIV06-GA0-43210___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
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. 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. Bylo studováno šíření napěťové vlny v ocelové tyči podpírané dřevěným blokem. Nejdříve byla provedena numerická simulace problému pomocí LS DYNA 3D. Dřevo bylo uvažována jako ortotropní materiál. Čelo bloku, které bylo v kontaktu s tyčí bylo zvoleno tak, aby bylo kolmé k rovinám L, R a T. Hodnoceno bylo 6 různých druhů dřev. Koeficienty napěťového pulzu byly srovnány s koeficienty stanovenými pro polonekonečnou tyč. Numerické simulace byly podpořeny experimenty provedenými se smrkovým dřevem. Sledován byl také vliv geometrie bloku.
dcterms:title
Odraz napěťového pulzu na rozhraní mezi elastickou tyčí a dřevěným blokem Reflection of stress pulse at the interface between elastic bar and wood block Reflection of stress pulse at the interface between elastic bar and wood block
skos:prefLabel
Odraz napěťového pulzu na rozhraní mezi elastickou tyčí a dřevěným blokem Reflection of stress pulse at the interface between elastic bar and wood block Reflection of stress pulse at the interface between elastic bar and wood block
skos:notation
RIV/62156489:43210/00:00089975!RIV06-GA0-43210___
n4:strany
35;46
n4:aktivita
n13:P
n4:aktivity
P(GA106/99/1703)
n4:cisloPeriodika
45
n4:dodaniDat
n6:2006
n4:domaciTvurceVysledku
n10:3372766 n10:5354684 n10:3248186
n4:druhVysledku
n14:J
n4:duvernostUdaju
n7:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
724863
n4:idVysledku
RIV/62156489:43210/00:00089975
n4:jazykVysledku
n17:eng
n4:klicovaSlova
anisotropy; sress pulse
n4:klicoveSlovo
n5:sress%20pulse n5:anisotropy
n4:kodStatuVydavatele
SK - Slovenská republika
n4:kontrolniKodProRIV
[F7A11B9588E0]
n4:nazevZdroje
Wood Research
n4:obor
n11:JJ
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n18:GA106%2F99%2F1703
n4:rokUplatneniVysledku
n6:2000
n4:tvurceVysledku
Křivánek, Ivo Horáček, Petr Buchar, Jaroslav
s:issn
1336-4561
s:numberOfPages
12
n3:organizacniJednotka
43210