Constitutive Relation for Cryopreserved Rabbit Carotid Arteries and Its Application
To characterize quantitatively the viscoelastic behaviors of cryopreserved rabbit carotid arteries, five mechanical models, i.e. standard linear model, and four kinds of generalized Maxwell models, were comparatively applied. Specific aim of this study was to test the validity of these models to simulate the stress relaxation behaviors of the cryopreserved arteries and to find a best-fit model for identification of viscoelastic parameters. Non-linear curve fittings were applied to the stress-relaxation data measured with dynamic mechanical thermal analyzer (DMTA IV; Rheometric. Scientific Inc.; Piscataway, NJ, USA), it was found that 5-element model (generalized Maxwell body composed of an elastic element and two Kelvin body) could provide satisfactory description of the cryopreserved rabbit carotid arteries.
artery viscoelasticity stress relazation cryopreserved DMTA
Gang Zhao Yu-xuan Zheng Yong Gao Pei-tao Wang
Department of Modern Mechanics University of Science and Technology of China Hefei, China Department of Cryomedicine Affiliated Hospital of Medical College, Qingdao University Qingdao, China
国际会议
上海
英文
1754-1757
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）