0931 種々の開き角の動脈壁に対する有限要素解析解と厳密解との比較(S05-1 生体のシミュレーション・モデリング・計測(1),S05 生体のシミュレーション・モデリング・計測)

概要

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We compared the results from finite element analyses on the arterial walls which have opening angles of 60° and 100° to the corresponding exact solutions. The geometries in the stress-free state were determined to match the unloaded geometry of the arterial wall which has no residual strain. The material constants in the strain energy density function were determined to fit the pressure-diameter relationship under a constant longitudinal stretch of 1.3 and the transmural pressures ranged from 0 to 20kPa. Comparisons of the results from the finite element analyses and the exact solutions show that the errors of the circumferential stress in the unloaded and loaded states were at most 4kPa and that the geometries matched quite well.
社団法人日本機械学会の論文
2007-09-07