About: Mechanical Optimization of Geometry of the System “Artery-Vascular Graft”

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A computational model of stress and strain states in an „overlapped“ anastomosis between artery and vascular graft is presented in the paper. This model is loaded by the systolic blood pressure, axial prestretch and accounts residual stresses in the artery as well. Material of both the artery and the graft is modelled as non-linear elastic, homogeneous, isotropic, with large strains. The model geometry corresponds to aorta and some geometric parameters of the anastomosis (length, ratio of diameters) aree varied with the aim to find the geometry which is optimal from the point of view of stresses and strains induced in the anastomosis. The optimization criterion is that the stress distribution in the artery in the anastomosis is similar to that in an artery unaffected by the anastomosis. The results show that the influence of axial prestretch and residual stress on the stress concentration in the anastomosis is substantial and it has to be accounted in the computational model. A computational model of stress and strain states in an „overlapped“ anastomosis between artery and vascular graft is presented in the paper. This model is loaded by the systolic blood pressure, axial prestretch and accounts residual stresses in the artery as well. Material of both the artery and the graft is modelled as non-linear elastic, homogeneous, isotropic, with large strains. The model geometry corresponds to aorta and some geometric parameters of the anastomosis (length, ratio of diameters) aree varied with the aim to find the geometry which is optimal from the point of view of stresses and strains induced in the anastomosis. The optimization criterion is that the stress distribution in the artery in the anastomosis is similar to that in an artery unaffected by the anastomosis. The results show that the influence of axial prestretch and residual stress on the stress concentration in the anastomosis is substantial and it has to be accounted in the computational model. (en)
Title	Mechanical Optimization of Geometry of the System “Artery-Vascular Graft” Mechanical Optimization of Geometry of the System “Artery-Vascular Graft” (en)
skos:prefLabel	Mechanical Optimization of Geometry of the System “Artery-Vascular Graft” Mechanical Optimization of Geometry of the System “Artery-Vascular Graft” (en)
skos:notation	RIV/00216305:26210/01:PU24492!RIV/2003/MSM/262103/N
http://linked.open.../vavai/riv/strany	45-50
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 262100001)
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Burša, Jiří
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	686311
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/01:PU24492
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vascular graft, stress and strain states, finite element method, stress gradient, optimization criterion (en)
http://linked.open.../riv/klicoveSlovo	optimization criterion vascular graft finite element method stress and strain states stress gradient
http://linked.open...ontrolniKodProRIV	[DACE658AB113]
http://linked.open...v/mistoKonaniAkce	Trest
http://linked.open...i/riv/mistoVydani	Třešť
http://linked.open...i/riv/nazevZdroje	Mechatronics and Robotics
http://linked.open...in/vavai/riv/obor	BO
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Burša, Jiří
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2001-09-10 (xsd:date)
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20262100001
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Vysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechaniky
https://schema.org/isbn	80-7204-207-6
http://localhost/t...ganizacniJednotka	26210

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