2-DIMENSIONAL STRESS-STRAIN RELATIONSHIP FOR CANINE PERICARDIUM

被引:82
作者
CHOI, HS
VITO, RP
机构
[1] School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA
来源
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 02期
关键词
D O I
10.1115/1.2891166
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Two-dimensional pseudoelastic mechanical properties of the canine pericardium were investigated in vitro. The pericardium was assumed to be orthotropic. The material symmetry axis was determined a priori and aligned with the stretching axis. Various biaxial stretching tests were then performed and a set of data covering a wide range of strains was constructed. This complete data set was fitted to a new exponential type constitutive model, and a set of true material constants was determined for each specimen. Using the constitutive model and the true material constants, the results from constant lateral force tests and constant lateral displacement- tests were predicted and compared with experiment. © 1990 by ASME.
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页码:153 / 159
页数:7
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