Viscoelastic properties of the passive mechanical behavior of the porcine carotid artery: influence of proximal and distal positions.
作者： A. García , M.A. Martínez , E. Peña
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摘要: The viscoelastic properties of porcine carotid tissue are investigated in this work. Experimental uniaxial stress re- laxation tests along the longitudinal and circumferential directions vessel were performed for strips extracted from 10 vessels. Directional local differences - distal versus proximal position behavior investigated. experimental reveal a highly anisotropic, non-linear response dependence samples. artery shows anisotropic relaxation both highest was found tensile test applied strain at position. For direction, higher than being its These facts show that is However, there no between positions direction. In addition, constitutive law takes into account fundamental features, including viscoelasticity, arterial proposed. present results correlated with purely elastic microstructural analysis by means histological quantification presented previous study.
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