摘要
本文在生物软组织试验台上,对7例成人的左冠状动脉前室间支、旋支、右冠状动脉、胸廓内动脉以及大隐静脉进行了一维载荷的力学试验。上述血管Young's模量(dT/dλ)随张应力(T)的增长而变大,其一维本构方程为指数函数关系。人胸廓内动脉的力学特性,比大隐静脉更接近于冠状动脉。讨论了血管显微结构成份含量与力学特性的关系,认为动脉的C/E值可以作为动脉弹性的经验指标。
For the first pt.see ibid vol.11 no.4,p.241 (1989).The anterior interven-tricular branch aad the circumflex branch of the left coronary artery,and the right coronary were excised from 7 autopsy adult subjects without heart diseases.A biaxial loading test for the vascular specimens was completed,which was simultaneously finished in the internal thoracic artery(ITA) and the great saphenous vein (GSV) of the same subjects in order to compare with the coronary arteries.Stress-strain relationships of the vessels were expressed by the exponential strain energy function.The meaning of the two-dimensional material constants for the vessels are discussed.
出处
《第三军医大学学报》
CAS
CSCD
北大核心
1989年第4期248-251,共4页
Journal of Third Military Medical University
基金
国家自然科学基金
关键词
生物力学
冠状动脉
二维
应力-应变
biomechanics
aortocoronary bypass
collagen
elastin
strain
biaxial
