血管壁内应力分布研究

王寿梅; 徐明; 李宁

血管壁内应力分布研究

1.
北京航空航天大学飞行器设计与应用力学系
2. 中国运载火箭技术研究院

详细信息

作者简介:
王寿梅(1936-),男,山东青岛人,教授,100083,北京.

中图分类号: O 3435
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- 被引次数: 0
出版历程
- 收稿日期: 2001-12-28
- 网络出版日期: 2003-04-30

On the Distribution of Stress in Blood Vessel Wall

Wang Shoumei¹,
Xu Ming¹,

1.
Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics
2. China Academy of Launch Vehicle Technology Systems Engineering Division

摘要

摘要: 应力一直被认为是影响动脉血管平滑肌细胞组织性质变化的重要因素.利用零应力状态和张开角的概念,推导受内压的血管壁的内力分布的解析解,并对具体的实例进行计算分析.计算结果表明,张开角对于沿血管壁厚度方向变化的圆周方向应力分布具有非常强烈的影响.
- 生物力学 /
- 应变能 /
- 本构关系
Abstract: Mechanical stress has long been hypothesized as one of the important factors in regulating the structure and organization of vascular smooth muscle cells. Based on the conceptions of zero stress state and opening angle proposed by earlier researchers, stress distribution in blood vessel wall with inner pressure was investigated numerically. The results indicated that opening angle has a strong effect on the distribution of circumferential stress in the thickness direction of the vessel wall.
- biomechanics /
- strain energy /
- constitutive relation

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参考文献(1)

[1] Fung Y C. What principle governs the stress distribution in living organs. In:Fung Y C, Fukada E, Wang J J. Biomechanics in China, Japan and USA. Proc of Wuhan Conf. China Beijing:Science Press, 1985.1~13 [2] Vaishnav R N, Vossoughi J. Estimation of residual strains in aortic segments[M]. New York:Pergamo Press,1983.330~333 [3] Vaishnav R N, Vossoughi J. Residual stress and strain in aortic segments[J]. Biomechanics,1987,20:235~239 [4] Fung Y C, Liu S Q. Change of residual strains in arteries due to hypertrophy caused by aortic constriction [J]. Circulation Research, 1989,65(5):1340~1349 [5] Fung Y C, Liu S Q.Changes of zero-stress state of rat pulmonary arteries in hypoxic hypertension[J]. Appl Physiol,1991,70:2455~2490 [6] Fung Y C. Biomechanics:motion,flow,stress,and growth[M].New York:Springer-Verlag,1990.499~546 [7] Liu S Q, Fung Y C. Zero-stress states of arteries[J]. Biomech Eng,1988,110:82~84 [8] Chuong C J, Fung Y C. On residual stress in arteries[J]. Biomech Eng,1986,108:189~192

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