Modelling of the mechanical behaviour of porcine carotid artery undergoing inflation-deflation test
Modelling of the mechanical behaviour of porcine carotid artery undergoing inflation-deflation test
复制标题
充气-放气试验中猪颈动脉力学行为的建模
DOI：
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
J. Švíglerová
中科院分区：
文献类型：
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作者：
J. Vychytil;F. Moravec;P. Kochová;J. Kuncová;J. Švíglerová
使用组织浴MAYFLOWER，管状器官灌注版本，813/6型检查猪颈动脉样品。压力-直径图得到固定的轴向延伸和体积流量。使用COMSOL软件进行的实验有限元分析表明，给定流速对测试样品的机械响应的影响可以忽略不计。此外，夹紧端的影响被示出为仅是局部的。因此，在MATLAB软件中进行静态分析，考虑动脉段作为不可压缩的超弹性轴对称管。考虑了无载荷配置处的残余应力，从而导致模型的整体刚度。比较理论和实验的压力-直径曲线的结果，在识别的材料参数，使用最小二乘法。除了经典的超弹性模型，如新Hookean和冯氏指数，两尺度模型模仿软组织的安排被认为是。
Samples of porcine carotid artery are examined using Tissue bath MAYFLOWER, Perfusion of tubular organs Version, Type 813/6. Pressure-diameter diagrams are obtained for fixed axial extension and volumetric flow rate. Finite element analysis of the experiment, performed using COMSOL software, indicates a negligible effect of given flow rate on the mechanical response of the tested sample. Also the effect of clamped ends is shown to be local only. Hence, static analysis in MATLAB software is performed considering the arterial segment as an incompressible hyperelastic axisymmetric tube. Residual stress at the load-free configuration is taken into account resulting in the overall stiffening of the model. Comparison of theoretical and experimental pressure-diameter curves results in the identification of material parameters using the least square method. In addition to classical hyperelastic models, such as the neo-Hookean and the Fung’s exponential, two-scale model mimicking arrangement of soft tissue is considered.
DOI：
10.1115/1.3138417
发表时间：
1983-01-01
影响因子：
1.7
作者：
CHUONG, CJ;FUNG, YC
通讯作者：
FUNG, YC