Počet záznamů: 1
Constitutive modeling of coronary artery bypass graft with incorporated torsion
0333216 - UT-L 2010 RIV HR eng J - Článek v odborném periodiku
Horný, L. - Chlup, Hynek - Žitný, R. - Adámek, T.
Constitutive modeling of coronary artery bypass graft with incorporated torsion.
Metalurgija. Roč. 49, č. 2 (2009), s. 273-277 ISSN 0543-5846
Grant CEP: GA ČR(CZ) GA106/08/0557
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: coronary artery bypass graft * constitutive model * digital image correlation
Kód oboru RIV: BJ - Termodynamika
Impakt faktor: 0.439, rok: 2009
The aim of this study is to describe mechanical response of coronary artery bypass graft (CABG). Attention was paid to sensitivity of a model to small torsions superimposed to an inflation and extension of an artery. The inflation-extension test was performed. A presence of torsions was proved via displacements analysis based on digital image correlation. CABG was modeled as nonlinearly hyperelastic, anisotropic and incompressible material with thin-walled cylindrical geometry. A strain energy function based on limiting fiber extensibility was used. Estimation of material parameters led to good agreement between the model and observations. It was concluded that the model is insensitive to small torsions superimposed to inflation-extension of the artery.
Trvalý link: http://hdl.handle.net/11104/0178258