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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F07%3A00000052%21RIV08-MSM-23520___
rdf:type
skos:Concept n13:Vysledek
dcterms:description
Problém interakce krve se stěnou aorty je v příspěvku řešen aplikací nesdružené metody. Řešení úlohy interakce se rozpadá na řešení dvou problémů - úloha proudění krve v cévě a úloha elastoplastiky stěny krevní cévy. Úloha je řešena aplikací MKP, krev je modelována jako Newtonova kapalina, její proudění je izotermické a laminární. Stěna cévy je modelována jako kompozitní materiál, který je uvažován ve čtyřech různých vrstvách. Výsledkem řešení je získání indexu poškození pro stěnu cévy na bázi Tsai-Hillova kritéria pro kompozitní materiály. Blood – aortic wall interaction was investigated in a current work using the uncoupled method. The method is based on alternating, relatively independent solutions of two problems – the problem of hydromechanics for a blood flow in the vessel and the problem of elastostatics for a blood vessel wall, with consideration of appropriate conditions, predescribed on their common bound. In order to solve single problems requested for a complex problem solution the Finite Element Method was used. Blood flow is modeled as isothermal laminar steady flow of incompressible Newtonian fluid. Blood vessel is simplified to a thick-walled linear elastic tube, composed of two fiber-reinforced composite layers. The results of the solution of the interaction problem are used later in order to state the failure index for the blood vessel by means of the Tsai-Hill failure theory obtained for composite structures. Blood – aortic wall interaction was investigated in a current work using the uncoupled method. The method is based on alternating, relatively independent solutions of two problems – the problem of hydromechanics for a blood flow in the vessel and the problem of elastostatics for a blood vessel wall, with consideration of appropriate conditions, predescribed on their common bound. In order to solve single problems requested for a complex problem solution the Finite Element Method was used. Blood flow is modeled as isothermal laminar steady flow of incompressible Newtonian fluid. Blood vessel is simplified to a thick-walled linear elastic tube, composed of two fiber-reinforced composite layers. The results of the solution of the interaction problem are used later in order to state the failure index for the blood vessel by means of the Tsai-Hill failure theory obtained for composite structures.
dcterms:title
Interaction problem for a blood vessel Úloha interakce pro krevní cévu Interaction problem for a blood vessel
skos:prefLabel
Interaction problem for a blood vessel Interaction problem for a blood vessel Úloha interakce pro krevní cévu
skos:notation
RIV/49777513:23520/07:00000052!RIV08-MSM-23520___
n3:strany
1-7
n3:aktivita
n16:Z
n3:aktivity
Z(MSM4977751303)
n3:dodaniDat
n18:2008
n3:domaciTvurceVysledku
Shakirova, Dina n14:5229510
n3:druhVysledku
n21:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
427067
n3:idVysledku
RIV/49777513:23520/07:00000052
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Blood; aortic wall; interaction; uncoupled method; FEM; composite materia
n3:klicoveSlovo
n7:composite%20materia n7:FEM n7:uncoupled%20method n7:Blood n7:aortic%20wall n7:interaction
n3:kontrolniKodProRIV
[925DFA00BAF7]
n3:mistoKonaniAkce
Svratka
n3:mistoVydani
Prague
n3:nazevZdroje
Engineering Mechanics 2007
n3:obor
n20:BK
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n18:2007
n3:tvurceVysledku
Shakirova, Dina Křen, Jiří
n3:typAkce
n10:EUR
n3:zahajeniAkce
2007-01-01+01:00
n3:zamer
n17:MSM4977751303
s:numberOfPages
7
n19:hasPublisher
Ústav termomechaniky AV ČR
n15:isbn
978-80-87012-06-2
n6:organizacniJednotka
23520