Modelling of stress-strain states in arteries as a pre-requisite for damage prediction

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of stress-strain states in arteries as a pre-requisite for damage prediction

Popis výsledku v původním jazyce

Damage to arteries can be caused by a number of different factors ranging from the influence of mechanical load of arterial walls on endothelial cells and, consequently, on the genesis of atheromatous plaques on the inner surface of the walls, to a global tissue rupture. To predict these states, it is necessary to know not only the limit conditions and limit values but also the most credible stress and strain states. These states were solved using FEA (ANSYS program system), namely in an intact artery aand in various geometric shapes of joints (anastomoses) with a vascular graft. The computational model used the axisymmetrical geometry with up to two different homogeneous coaxial layers in the artery wall. The material was supposed to be non-linear elastic, isotropic, nearly incompressible, showing finite displacements and strains under physiologic load. The model considered three major load factors: blood pressure, axial prestretch and residual stresses. The influence of axial prestre

Název v anglickém jazyce

Modelling of stress-strain states in arteries as a pre-requisite for damage prediction

Popis výsledku anglicky

Damage to arteries can be caused by a number of different factors ranging from the influence of mechanical load of arterial walls on endothelial cells and, consequently, on the genesis of atheromatous plaques on the inner surface of the walls, to a global tissue rupture. To predict these states, it is necessary to know not only the limit conditions and limit values but also the most credible stress and strain states. These states were solved using FEA (ANSYS program system), namely in an intact artery aand in various geometric shapes of joints (anastomoses) with a vascular graft. The computational model used the axisymmetrical geometry with up to two different homogeneous coaxial layers in the artery wall. The material was supposed to be non-linear elastic, isotropic, nearly incompressible, showing finite displacements and strains under physiologic load. The model considered three major load factors: blood pressure, axial prestretch and residual stresses. The influence of axial prestre

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Seventh International Conference Damage and Fracture Mechanics VII

ISBN

1-85312-926-7

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

487-495

Název nakladatele

WITPress, Southampton, Boston

Místo vydání

Kihei,USA

Místo konání akce

Kihei, Maui

Datum konání akce

15. 10. 2002

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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