. Author manuscript; available in PMC: 2011 Dec 1.

Published in final edited form as: Cardiovasc Eng. 2010 Dec 1;1(4):282–289. doi: 10.1007/s13239-010-0024-4

TABLE 1. Material constants b₀, b₁, b₂, and b₄ determined from vein inflation experiments²².

	Fitting axial stress–strain data only				Fitting axial and circumferential stress–strain data simultaneously

	b₀	b₁	b₂	b₄	b₀	b₁	b₂	b₄
Vein 1	74.83	0.001	1.039	0.001	54.871	0.001	0.795	6.382
Vein 2	33.430	13.930	1.730	0.002	27.700	0.001	1.586	10.110
Vein 3	38.028	34.648	0.856	0.207	42.250	2.000	0.095	2.910
Vein 4	30.775	0.001	0.218	1.626	30.800	3.150	0.136	1.965
Vein 5	39.900	26.890	0.519	0.260	6.540	2.060	0.530	4.980
Vein 6	5.060	0.001	1.240	0.001	5.520	0.993	0.001	2.870
Vein 7	89.070	0.001	1.384	0.018	87.520	4.000	0.190	2.990
Vein 8	14.370	0.222	1.295	0.002	29.390	0.001	0.276	4.537

The material constants were determined by fitting Eq. (5) with the experimental data using Matlab.

TABLE 1. Material constants b0, b1, b2, and b4 determined from vein inflation experiments22.