Constitutive modeling of human saphenous veins at overloading pressures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064165%3A_____%2F15%3A10294995" target="_blank" >RIV/00064165:_____/15:10294995 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11120/15:43909419 RIV/68407700:21220/15:00227701 RIV/27283933:_____/15:N0000032 RIV/00064173:_____/15:N0000009
Result on the web
<a href="http://dx.doi.org/10.1016/j.jmbbm.2015.01.023" target="_blank" >http://dx.doi.org/10.1016/j.jmbbm.2015.01.023</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jmbbm.2015.01.023" target="_blank" >10.1016/j.jmbbm.2015.01.023</a>
Alternative languages
Result language
angličtina
Original language name
Constitutive modeling of human saphenous veins at overloading pressures
Original language description
In the present study, inflation tests with free axial extension of 15 human vena saphena magna were conducted ex vivo to obtain data suitable for multi-axial constitutive modeling at overloading conditions (pressures up to approximately 15 kPa). Subsequently the data were fitted with a hyperelastic, nonlinear and anisotropic constitutive model based on the theory of the closed thick-walled tube. It was observed that initial highly deformable behavior (up to approximately 2.5 kPa) in the pressure-circumferential stretch response is followed by progressive large strain stiffening. Contrary to that, samples were much stiffer in longitudinal direction, where the observed stretches were in the range 0.98-1.03 during the entire pressurization in most cases. The effect of possible residual stress was evaluated in a simulation of the intramural stress distribution with the opening angle prescribed to 0 degrees, 10 degrees, 20 degrees, 30 degrees, 40 degrees, and 50 degrees. The result suggests that the optimal opening angle making the stress distribution through the wall thickness uniform is about 40 degrees. The material parameters presented here are suitable for use in mechanobiological simulations describing the adaptation of the autologous vein wall after bypass surgery.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/NT13302" target="_blank" >NT13302: THE OPTIMALIZATION OF PHYSICAL CHARACTERISTICS OF VASCULAR SUBSTITUTES FOR LOW FLOW</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the Mechanical Behavior of Biomedical Materials
ISSN
1751-6161
e-ISSN
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Volume of the periodical
45
Issue of the periodical within the volume
May
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
101-108
UT code for WoS article
000352665100010
EID of the result in the Scopus database
2-s2.0-84923043137