[Comparison of mechanical properties between human aortic valve and pulmonary arterial valve].
We have investigated the mechanical properties of Chinese aortic and pulmonary valves by means of uniaxial tension. The parameters include the stress-strain curve, the maximum tangent modulus E (the slope of linear segment) in the curve, the tensile strength delta b, and the ultimate strain epsilon b. The results have shown that E, delta b, and epsilon b values between aortic valve and pulmonary valve exist significant differences (significant level = 0.01), but the mechanical property differences between circumferential direction and radial direction in the pulmonary arterial valve are not significant, that means, the valve appears small anisotropic behaviour.
Li
Z
Z
Dept. of Civil Engineering & Applied Mechanics, Sichuan Union University, Chengdu.
Cheng
M
M
Yu
J
J
Cheng
J
J
D000328:Adult; D001021:Aortic Valve / Q000502:physiology*; D001696:Biomechanical Phenomena; D006801:Humans; D008297:Male; D011664:Pulmonary Valve / Q000502:physiology*